{"id":42378,"date":"2025-06-22T15:38:54","date_gmt":"2025-06-22T06:38:54","guid":{"rendered":"https:\/\/jouhou.main.jp\/?p=42378"},"modified":"2026-04-03T17:01:28","modified_gmt":"2026-04-03T08:01:28","slug":"linux-exdev-18-%e8%a8%ba%e6%96%ad%ef%bc%9a%e3%83%8f%e3%83%bc%e3%83%89%e3%83%aa%e3%83%b3%e3%82%af%e4%bd%9c%e6%88%90%e3%82%a8%e3%83%a9%e3%83%bc%e3%81%ae%e5%8e%9f%e5%9b%a0%e7%a9%b6%e6%98%8e%e3%81%a8","status":"publish","type":"post","link":"https:\/\/jouhou.main.jp\/?p=42378","title":{"rendered":"Linux EXDEV (18) \u8a3a\u65ad\uff1a\u30cf\u30fc\u30c9\u30ea\u30f3\u30af\u4f5c\u6210\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u7a76\u660e\u3068\u4fee\u5fa9\u7de8"},"content":{"rendered":"<section style=\"max-width:100%; box-sizing:border-box; overflow:visible; overflow-wrap:anywhere; border:1px solid #d1d5db; border-radius:3px; padding:16px; background:#ffffff; margin:0 0 24px 0;\">\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; margin:0 0 16px 0;\">\n<div style=\"overflow-wrap:anywhere; max-width:100%; display:inline-block; font-size:16px; letter-spacing:0.06em; color:#ffffff; background:#000000; border:1px solid #e5e7eb; border-radius:3px; padding:2px 8px; box-sizing:border-box;\">\u6700\u77ed\u30c1\u30a7\u30c3\u30af<\/div>\n<h2 style=\"margin:12px 0 8px 0; font-size:24px; line-height:1.4; color:#111827; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">EXDEV\u306f\u300c\u307e\u305f\u3044\u3060\u5883\u754c\u300d\u3092\u898b\u3064\u3051\u308b\u3068\u6574\u7406\u3057\u3084\u3059\u3044<\/h2>\n<p style=\"margin:0; font-size:14px; line-height:1.8; color:#374151; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u6a29\u9650\u5909\u66f4\u306b\u98db\u3070\u305a\u3001\u307e\u305a\u5883\u754c\u3092\u898b\u3066\u4e89\u70b9\u3092\u7d5e\u308b\u3068\u3001\u6700\u5c0f\u5909\u66f4\u3067\u53ce\u675f\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u6b62\u3081\u3065\u3089\u3044\u672c\u756a\u3067\u3082\u3001\u5f71\u97ff\u7bc4\u56f2\u3092\u8aad\u307f\u9055\u3048\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/p><\/div>\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #fecaca; border-radius:3px; background:#fef2f2; padding:14px; margin:0 0 14px 0;\">\n<div style=\"margin:0 0 8px 0; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\"> <span style=\"display:inline-block; min-width:24px; text-align:center; font-weight:700; color:#ffffff; background:#dc2626; border-radius:3px; padding:2px 8px; box-sizing:border-box;\">1<\/span> <strong style=\"margin-left:8px; font-size:18px; color:#111827; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">30\u79d2\u3067\u4e89\u70b9\u3092\u7d5e\u308b<\/strong> <\/div>\n<p style=\"margin:0 0 10px 0; font-size:14px; line-height:1.8; color:#374151; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">EXDEV \u306f\u300c\u5225\u306e\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u3092\u307e\u305f\u3044\u3060\u53ef\u80fd\u6027\u300d\u304c\u672c\u547d\u3067\u3059\u3002\u8aad\u307f\u53d6\u308a\u7cfb\u306e\u78ba\u8a8d\u3060\u3051\u3067\u3082\u3001\u6a29\u9650\u554f\u984c\u306a\u306e\u304b\u3001\u69cb\u6210\u554f\u984c\u306a\u306e\u304b\u304c\u304b\u306a\u308a\u898b\u3048\u307e\u3059\u3002<\/p>\n<pre style=\"margin:0; padding:12px; border-radius:3px; background:#111827; color:#ffffff; font-size:13px; line-height:1.7; white-space:pre-wrap; overflow-wrap:anywhere; word-break:break-word; max-width:100%; box-sizing:border-box;\">df -T \/src\/path \/dst\/path stat -c '%d %n' \/src\/path \/dst\/path findmnt -T \/src\/path findmnt -T \/dst\/path<\/pre>\n<\/p><\/div>\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #bbf7d0; border-radius:3px; background:#f0fdf4; padding:14px; margin:0 0 14px 0;\">\n<div style=\"margin:0 0 8px 0; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\"> <span style=\"display:inline-block; min-width:24px; text-align:center; font-weight:700; color:#ffffff; background:#16a34a; border-radius:3px; padding:2px 8px; box-sizing:border-box;\">2<\/span> <strong style=\"margin-left:8px; font-size:18px; color:#111827; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u4e89\u70b9\u5225\uff1a\u4eca\u5f8c\u306e\u9078\u629e\u3084\u884c\u52d5<\/strong> <\/div>\n<p style=\"margin:0 0 12px 0; font-size:14px; line-height:1.8; color:#374151; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u540c\u3058 EXDEV \u3067\u3082\u3001\u76f4\u3057\u65b9\u306f1\u3064\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u8981\u4ef6\u3092\u5d29\u3055\u305a\u3001\u5f71\u97ff\u7bc4\u56f2\u304c\u5c0f\u3055\u3044\u9078\u629e\u306b\u5bc4\u305b\u308b\u3068\u5224\u65ad\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #d1fae5; border-radius:3px; background:#ffffff; padding:12px; margin:0 0 10px 0;\">\n<p style=\"margin:0 0 8px 0; font-size:15px; line-height:1.7; color:#111827; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\"><strong>\u30b1\u30fc\u30b9A\uff1a<\/strong>\u5143\u3068\u5148\u3067\u5225\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u3092\u307e\u305f\u3044\u3067\u3044\u308b<\/p>\n<pre style=\"margin:0; padding:12px; border-radius:3px; background:#000000; color:#ffffff; font-size:13px; line-height:1.7; white-space:pre-wrap; overflow-wrap:anywhere; word-break:break-word; max-width:100%; box-sizing:border-box;\">\u9078\u629e\u3068\u884c\u52d5\n\u30cf\u30fc\u30c9\u30ea\u30f3\u30af\u5fc5\u9808\u3067\u306a\u3051\u308c\u3070\u3001symlink \u307e\u305f\u306f copy \u3078\u8981\u4ef6\u3092\u5bc4\u305b\u308b\n\u30cf\u30fc\u30c9\u30ea\u30f3\u30af\u5fc5\u9808\u306a\u3089\u3001\u540c\u4e00\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u5074\u3078\u914d\u7f6e\u3092\u5bc4\u305b\u3089\u308c\u306a\u3044\u304b\u3092\u898b\u308b\n\u69cb\u6210\u5909\u66f4\u306f\u6700\u5c0f\u5909\u66f4\u3067\u6e08\u3080\u304b\u3092\u5148\u306b\u6bd4\u8f03\u3059\u308b<\/pre>\n<\/div>\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #d1fae5; border-radius:3px; background:#ffffff; padding:12px; margin:0 0 10px 0;\">\n<p style=\"margin:0 0 8px 0; font-size:15px; line-height:1.7; color:#111827; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\"><strong>\u30b1\u30fc\u30b9B\uff1a<\/strong>\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u30fbbind mount\u30fbNAS \u304c\u7d61\u3093\u3067\u3044\u308b<\/p>\n<pre style=\"margin:0; padding:12px; border-radius:3px; background:#000000; color:#ffffff; font-size:13px; line-height:1.7; white-space:pre-wrap; overflow-wrap:anywhere; word-break:break-word; max-width:100%; box-sizing:border-box;\">\u9078\u629e\u3068\u884c\u52d5\n\u898b\u3048\u3066\u3044\u308b\u30d1\u30b9\u3067\u306f\u306a\u304f\u3001\u5b9f\u4f53\u306e\u30de\u30a6\u30f3\u30c8\u5883\u754c\u3092\u78ba\u8a8d\u3059\u308b\n\u624b\u9806\u3067\u5438\u53ce\u3067\u304d\u308b\u306e\u304b\u3001\u69cb\u6210\u4fee\u6b63\u304c\u5fc5\u8981\u306a\u306e\u304b\u3092\u5206\u3051\u3066\u8003\u3048\u308b\n\u76e3\u67fb\u3084\u904b\u7528\u30eb\u30fc\u30eb\u304c\u7d61\u3080\u306a\u3089\u3001\u6a29\u9650\u5909\u66f4\u3088\u308a\u5148\u306b\u6574\u7406\u3059\u308b<\/pre>\n<\/div>\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #d1fae5; border-radius:3px; background:#ffffff; padding:12px; margin:0 0 10px 0;\">\n<p style=\"margin:0 0 8px 0; font-size:15px; line-height:1.7; color:#111827; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\"><strong>\u30b1\u30fc\u30b9C\uff1a<\/strong>\u30b3\u30f3\u30c6\u30ca\u30fbCI\u30fboverlayfs \u306e\u4e2d\u3067\u767a\u751f\u3057\u3066\u3044\u308b<\/p>\n<pre style=\"margin:0; padding:12px; border-radius:3px; background:#000000; color:#ffffff; font-size:13px; line-height:1.7; white-space:pre-wrap; overflow-wrap:anywhere; word-break:break-word; max-width:100%; box-sizing:border-box;\">\u9078\u629e\u3068\u884c\u52d5\n\u30b3\u30f3\u30c6\u30ca\u5185\u306e\u898b\u3048\u65b9\u3068\u30db\u30b9\u30c8\u5074\u306e\u5b9f\u4f53\u5dee\u5206\u3092\u5148\u306b\u63c3\u3048\u308b\n\u30a4\u30e1\u30fc\u30b8\u4fee\u6b63\u3060\u3051\u3067\u306a\u304f\u3001volume \u3084\u6210\u679c\u7269\u914d\u7f6e\u306e\u898b\u76f4\u3057\u3082\u5019\u88dc\u306b\u5165\u308c\u308b\n\u518d\u30c7\u30d7\u30ed\u30a4\u5f8c\u306b\u518d\u767a\u3057\u306a\u3044\u76f4\u3057\u65b9\u304b\u3092\u78ba\u8a8d\u3059\u308b<\/pre>\n<\/div>\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #d1fae5; border-radius:3px; background:#ffffff; padding:12px; margin:0;\">\n<p style=\"margin:0 0 8px 0; font-size:15px; line-height:1.7; color:#111827; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\"><strong>\u30b1\u30fc\u30b9D\uff1a<\/strong>\u672c\u756a\u30c7\u30fc\u30bf\u30fb\u76e3\u67fb\u8981\u4ef6\u30fb\u505c\u6b62\u3057\u3065\u3089\u3044\u51e6\u7406\u304c\u7d61\u3093\u3067\u3044\u308b<\/p>\n<pre style=\"margin:0; padding:12px; border-radius:3px; background:#000000; color:#ffffff; font-size:13px; line-height:1.7; white-space:pre-wrap; overflow-wrap:anywhere; word-break:break-word; max-width:100%; box-sizing:border-box;\">\u9078\u629e\u3068\u884c\u52d5\n\u5f37\u5f15\u306a chmod \u3084 chown \u306b\u5bc4\u3089\u305a\u3001\u5909\u66f4\u524d\u306b\u5f71\u97ff\u7bc4\u56f2\u3092\u898b\u7a4d\u3082\u308b\n\u30ea\u30f3\u30af\u65b9\u5f0f\u306e\u5909\u66f4\u3067\u8981\u4ef6\u3092\u6e80\u305f\u305b\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\n\u5224\u65ad\u6750\u6599\u304c\u4e0d\u8db3\u3059\u308b\u306a\u3089\u3001\u8ff7\u3063\u305f\u3089\u76f8\u8ac7\u306e\u307b\u3046\u304c\u65e9\u304f\u53ce\u675f\u3057\u3084\u3059\u3044<\/pre>\n<\/div>\n<\/div>\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #bfdbfe; border-radius:3px; background:#eff6ff; padding:14px; margin:0 0 14px 0;\">\n<div style=\"margin:0 0 8px 0; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\"> <span style=\"display:inline-block; min-width:24px; text-align:center; font-weight:700; color:#ffffff; background:#2563eb; border-radius:3px; padding:2px 8px; box-sizing:border-box;\">3<\/span> <strong style=\"margin-left:8px; font-size:18px; color:#111827; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u5f71\u97ff\u7bc4\u56f2\u30921\u5206\u3067\u78ba\u8a8d<\/strong> <\/div>\n<p style=\"margin:0 0 10px 0; font-size:14px; line-height:1.8; color:#374151; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u300c\u30ea\u30f3\u30af\u4f5c\u6210\u306b\u5931\u6557\u3057\u305f\u300d\u3060\u3051\u3067\u7d42\u308f\u3089\u305b\u305a\u3001\u3069\u306e\u524d\u63d0\u304c\u5d29\u308c\u308b\u304b\u3092\u898b\u308b\u3068\u3001\u4fee\u5fa9\u5f8c\u306e\u4e8b\u6545\u304c\u6e1b\u308a\u307e\u3059\u3002\u6700\u5c0f\u5909\u66f4\u3067\u6e08\u3080\u304b\u3069\u3046\u304b\u3082\u3001\u3053\u306e\u6642\u70b9\u3067\u898b\u3048\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #dbeafe; border-radius:3px; background:#ffffff; padding:12px;\">\n<p style=\"margin:0 0 6px 0; font-size:14px; line-height:1.8; color:#111827; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u30fbinode \u5171\u6709\u524d\u63d0\u306e\u51e6\u7406\u304b\u3001\u5358\u306a\u308b\u91cd\u8907\u56de\u907f\u304b<\/p>\n<p style=\"margin:0 0 6px 0; font-size:14px; line-height:1.8; color:#111827; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u30fb\u30c7\u30d7\u30ed\u30a4\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3001\u76e3\u67fb\u30ed\u30b0\u3001\u30d0\u30c3\u30c1\u3067\u540c\u3058\u524d\u63d0\u3092\u4f7f\u3063\u3066\u3044\u306a\u3044\u304b<\/p>\n<p style=\"margin:0 0 6px 0; font-size:14px; line-height:1.8; color:#111827; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u30fbcopy \u3084 symlink \u3078\u5207\u308a\u66ff\u3048\u305f\u3068\u304d\u306e\u5bb9\u91cf\u3001\u6027\u80fd\u3001\u5fa9\u65e7\u624b\u9806\u306b\u5dee\u304c\u51fa\u306a\u3044\u304b<\/p>\n<p style=\"margin:0; font-size:14px; line-height:1.8; color:#111827; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u30fb\u672c\u756a\u3067\u89e6\u308b\u524d\u306b\u3001\u691c\u8a3c\u7cfb\u3067\u518d\u73fe\u6761\u4ef6\u3092\u62bc\u3055\u3048\u3089\u308c\u3066\u3044\u308b\u304b<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #fdba74; border-radius:3px; background:#fff7ed; padding:14px; margin:0 0 14px 0;\">\n<h3 style=\"margin:0 0 10px 0; font-size:18px; line-height:1.6; color:#9a3412; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u5931\u6557\u3059\u308b\u3068\u3069\u3046\u306a\u308b\uff1f\uff08\u3084\u308a\u304c\u3061\u306a\u30df\u30b9\u3068\u8d77\u3053\u308a\u5f97\u308b\u7d50\u679c\uff09<\/h3>\n<ul style=\"margin:0; padding-left:20px; color:#7c2d12; box-sizing:border-box; max-width:100%; overflow:visible;\">\n<li style=\"margin:0 0 8px 0; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">EXDEV \u3092\u6a29\u9650\u4e0d\u8db3\u3068\u8aa4\u8a8d\u3057\u3001chmod \u3084 chown \u3092\u5e83\u3052\u3066\u3057\u307e\u3044\u3001\u5225\u306e\u969c\u5bb3\u3084\u76e3\u67fb\u6307\u6458\u306b\u3064\u306a\u304c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li style=\"margin:0 0 8px 0; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">copy \u3067\u4e00\u6642\u3057\u306e\u304e\u3092\u3059\u308b\u3068\u3001inode \u5171\u6709\u524d\u63d0\u304c\u5d29\u308c\u3001\u6574\u5408\u6027\u3084\u5bb9\u91cf\u898b\u7a4d\u3082\u308a\u304c\u305a\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li style=\"margin:0 0 8px 0; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u30b3\u30f3\u30c6\u30ca\u5185\u3060\u3051\u3092\u76f4\u3059\u3068\u3001\u30db\u30b9\u30c8\u3084\u30c7\u30d7\u30ed\u30a4\u5f8c\u306e\u6319\u52d5\u3068\u98df\u3044\u9055\u3044\u3001\u518d\u767a\u306e\u706b\u7a2e\u304c\u6b8b\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li style=\"margin:0; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u524d\u63d0\u3092\u898b\u843d\u3068\u3059\u3068\u3001\u4ed6\u30b8\u30e7\u30d6\u3084\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306b\u6ce2\u53ca\u3057\u3001\u60f3\u5b9a\u5916\u306e\u904b\u7528\u8ca0\u8377\u306b\u3064\u306a\u304c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul><\/div>\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #93c5fd; border-radius:3px; background:#f8fbff; padding:14px; margin:0;\">\n<h3 style=\"margin:0 0 8px 0; font-size:20px; line-height:1.6; color:#1e3a8a; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u8ff7\u3063\u305f\u3089\uff1a\u7121\u6599\u3067\u76f8\u8ac7\u3067\u304d\u307e\u3059<\/h3>\n<p style=\"margin:0 0 10px 0; font-size:14px; line-height:1.8; color:#374151; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\"><strong>\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u7121\u6599\u76f8\u8ac7\u3057\u3066\u304a\u304f\u3068\u3001\u5207\u308a\u5206\u3051\u3068\u4fee\u5fa9\u65b9\u91dd\u304c\u65e9\u304f\u6574\u7406\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; margin:0 0 12px 0;\">\n<p style=\"margin:0 0 6px 0; font-size:12px; line-height:1.8; color:#4b5563; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u540c\u4e00\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u304b\u3067\u8ff7\u3063\u305f\u3089\u3002<\/p>\n<p style=\"margin:0 0 6px 0; font-size:12px; line-height:1.8; color:#4b5563; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u30b3\u30f3\u30c6\u30ca\u5185\u3068\u30db\u30b9\u30c8\u5074\u306e\u5dee\u5206\u8a3a\u65ad\u304c\u3067\u304d\u306a\u3044\u3002<\/p>\n<p style=\"margin:0 0 6px 0; font-size:12px; line-height:1.8; color:#4b5563; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u672c\u756a\u30c7\u30fc\u30bf\u3092\u89e6\u308b\u524d\u306e\u5224\u65ad\u3067\u8ff7\u3063\u305f\u3089\u3002<\/p>\n<p style=\"margin:0 0 6px 0; font-size:12px; line-height:1.8; color:#4b5563; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u76e3\u67fb\u8981\u4ef6\u3064\u304d\u306e\u6700\u5c0f\u5909\u66f4\u304c\u8aad\u3081\u306a\u3044\u3002<\/p>\n<p style=\"margin:0 0 6px 0; font-size:12px; line-height:1.8; color:#4b5563; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u524d\u63d0\u306e\u5f71\u97ff\u7bc4\u56f2\u3067\u8ff7\u3063\u305f\u3089\u3002<\/p>\n<p style=\"margin:0; font-size:12px; line-height:1.8; color:#4b5563; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u30b3\u30f3\u30c6\u30ca\u3001\u672c\u756a\u30c7\u30fc\u30bf\u3001\u76e3\u67fb\u8981\u4ef6\u304c\u7d61\u3080\u5834\u5408\u306f\u3001\u7121\u7406\u306b\u6a29\u9650\u3092\u89e6\u308b\u524d\u306b\u76f8\u8ac7\u3059\u308b\u3068\u65e9\u304f\u53ce\u675f\u3057\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n<\/div>\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; margin:0 0 12px 0;\">\n  <a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\" style=\"display:inline-block; margin:0 10px 10px 0; padding:10px 14px; border-radius:3px; background:#2563eb; color:#ffffff; text-decoration:none; font-size:14px; line-height:1.6; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u7121\u6599\u76f8\u8ac7\u30d5\u30a9\u30fc\u30e0<\/a><br \/>\n  <a href=\"tel:0120838831\" style=\"display:inline-block; margin:0 10px 10px 0; padding:10px 14px; border-radius:3px; background:#1e3a8a; color:#ffffff; text-decoration:none; font-size:14px; line-height:1.6; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u96fb\u8a71\u3067\u76f8\u8ac7\uff080120-838-831\uff09<\/a><br \/>\n  <a href=\"tel:0434224240\" style=\"display:inline-block; margin:0 0 10px 0; padding:10px 14px; border-radius:3px; background:#0b1f4b; color:#ffffff; text-decoration:none; font-size:14px; line-height:1.6; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u6280\u8853\u8005\u76f4\u901a\uff08043-422-4240\uff09<\/a>\n<\/div>\n<p style=\"margin:0; font-size:21px; line-height:1.6; color:#111827; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u8a73\u3057\u3044\u8aac\u660e\u3068\u5bfe\u7b56\u306f\u4ee5\u4e0b\u672c\u6587\u3078\u3002<\/p>\n<\/div>\n<\/section>\n<div style=\"margin:0; padding:30pt; background-color:#EEEEEE;\">\n<p style=\"margin:0 0 8px 0; font-size:1.2em;\"><strong>\u3082\u304f\u3058<\/strong><\/p>\n<ul style=\"list-style-type:none; padding-left:0; margin:0;\">\n<li style=\"margin:40px 0;\"><a href=\"#sec01\">\u7b2c1\u7ae0\uff1a\u306a\u305c ln \u304c\u5931\u6557\u3059\u308b\u306e\u304b\u2015\u2015EXDEV (18) \u306f\u300c\u6a29\u9650\u4e0d\u8db3\u300d\u3067\u306f\u306a\u304f\u5883\u754c\u306e\u30b5\u30a4\u30f3<\/a><\/li>\n<li style=\"margin:40px 0;\"><a href=\"#sec02\">\u7b2c2\u7ae0\uff1a\u307e\u305a\u7591\u3046\u3079\u304d\u5206\u65ad\u70b9\u2015\u2015\u5225\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u30fb\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u30fb\u30b3\u30f3\u30c6\u30ca\u306e\u4f0f\u7dda<\/a><\/li>\n<li style=\"margin:40px 0;\"><a href=\"#sec03\">\u7b2c3\u7ae0\uff1a\u518d\u73fe\u3068\u5207\u308a\u5206\u3051\u2015\u2015stat\u30fbdf\u30fbfindmnt \u3067\u300c\u3069\u3053\u3092\u307e\u305f\u3044\u3060\u304b\u300d\u3092\u898b\u3048\u308b\u5316\u3059\u308b<\/a><\/li>\n<li style=\"margin:40px 0;\"><a href=\"#sec04\">\u7b2c4\u7ae0\uff1a\u4fee\u5fa9\u65b9\u91dd\u3092\u8aa4\u3089\u306a\u3044\u2015\u2015\u30cf\u30fc\u30c9\u30ea\u30f3\u30af\u3092\u5916\u3059\u6761\u4ef6\u3068\u6700\u5c0f\u5909\u66f4\u3067\u76f4\u3059\u6761\u4ef6<\/a><\/li>\n<li style=\"margin:40px 0;\"><a href=\"#sec05\">\u7b2c5\u7ae0\uff1a\u672c\u756a\u3067\u5d29\u3055\u306a\u3044\u5b9f\u88c5\u2015\u2015mv\u30fbcp\u30fbsymlink \u306e\u4f7f\u3044\u5206\u3051\u3068\u5f71\u97ff\u7bc4\u56f2\u306e\u8003\u3048\u65b9<\/a><\/li>\n<li style=\"margin:40px 0;\"><a href=\"#sec06\">\u7b2c6\u7ae0\uff1a\u8a3a\u65ad\u304b\u3089\u518d\u767a\u9632\u6b62\u3078\u2015\u2015EXDEV \u3092\u4e00\u6642\u5bfe\u5fdc\u3067\u7d42\u308f\u3089\u305b\u306a\u3044\u8a2d\u8a08\u3068\u904b\u7528<\/a><\/li>\n<\/ul><\/div>\n<p>\u3010\u6ce8\u610f\u3011Linux \u306e EXDEV (18) \u306f\u3001\u898b\u305f\u76ee\u304c\u5358\u7d14\u3067\u3082\u3001\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u30b3\u30f3\u30c6\u30ca\u3001\u76e3\u67fb\u8981\u4ef6\u3001\u672c\u756a\u30c7\u30fc\u30bf\u306e\u914d\u7f6e\u304c\u7d61\u3080\u3068\u5224\u65ad\u3092\u8aa4\u308a\u3084\u3059\u3044\u969c\u5bb3\u3067\u3059\u3002\u81ea\u5206\u3067\u4fee\u7406\u3084\u5fa9\u65e7\u4f5c\u696d\u3092\u9032\u3081\u308b\u524d\u306b\u3001\u8aad\u307f\u53d6\u308a\u4e2d\u5fc3\u3067\u72b6\u6cc1\u3092\u78ba\u8a8d\u3057\u3001\u500b\u5225\u6848\u4ef6\u3067\u306f<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u306e\u3088\u3046\u306a\u5c02\u9580\u4e8b\u696d\u8005\u3078\u3054\u76f8\u8ac7\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u3000<\/p>\n<p> <a id=\"sec01\"><\/a> <\/p>\n<h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u7b2c1\u7ae0\uff1a\u306a\u305c ln \u304c\u5931\u6557\u3059\u308b\u306e\u304b\u2015\u2015EXDEV (18) \u306f\u300c\u6a29\u9650\u4e0d\u8db3\u300d\u3067\u306f\u306a\u304f\u5883\u754c\u306e\u30b5\u30a4\u30f3<\/h2>\n<p>Linux \u3067 <code>ln<\/code> \u3092\u5b9f\u884c\u3057\u305f\u969b\u306b <code>Invalid cross-device link<\/code> \u3084 <code>EXDEV (18)<\/code> \u304c\u51fa\u308b\u3068\u3001\u3064\u3044\u300c\u6a29\u9650\u304c\u8db3\u308a\u306a\u3044\u306e\u3067\u306f\u306a\u3044\u304b\u300d\u300csudo \u3067\u3084\u308a\u76f4\u305b\u3070\u901a\u308b\u306e\u3067\u306f\u306a\u3044\u304b\u300d\u3068\u8003\u3048\u304c\u3061\u3067\u3059\u3002\u3057\u304b\u3057\u3001Linux \u306e <code>link(2)<\/code> \u306f\u3001<code>EXDEV<\/code> \u3092\u300c\u5143\u306e\u30d1\u30b9\u3068\u65b0\u3057\u3044\u30d1\u30b9\u304c\u540c\u3058 mounted filesystem \u4e0a\u306b\u306a\u3044\u300d\u3068\u304d\u306e\u30a8\u30e9\u30fc\u3068\u3057\u3066\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u6700\u521d\u306b\u7591\u3046\u3079\u304d\u306f\u6a29\u9650\u3067\u306f\u306a\u304f\u3001\u30de\u30a6\u30f3\u30c8\u5883\u754c\u3001\u914d\u7f6e\u3001\u540d\u524d\u7a7a\u9593\u3001\u3042\u308b\u3044\u306f\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u306e\u898b\u3048\u65b9\u3067\u3059\u3002\u3053\u3053\u3092\u53d6\u308a\u9055\u3048\u308b\u3068\u3001\u4e0d\u8981\u306a\u6a29\u9650\u5909\u66f4\u3084\u904b\u7528\u5909\u66f4\u304c\u5e83\u304c\u308a\u3001\u969c\u5bb3\u306e\u30af\u30fc\u30eb\u30c0\u30a6\u30f3\u3069\u3053\u308d\u304b\u5f71\u97ff\u7bc4\u56f2\u3092\u5e83\u3052\u308b\u5224\u65ad\u306b\u306a\u308a\u304b\u306d\u307e\u305b\u3093\u3002<\/p>\n<table style=\"border-collapse:collapse; width:100%; margin:16px 0;\">\n<tr>\n<th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u75c7\u72b6<\/th>\n<th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u53d6\u308b\u3079\u304d\u884c\u52d5<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\">ln \u5b9f\u884c\u6642\u306b EXDEV (18) \/ Invalid cross-device link \u304c\u51fa\u308b<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u6a29\u9650\u5909\u66f4\u3088\u308a\u5148\u306b\u3001\u5143\u30d1\u30b9\u3068\u5148\u30d1\u30b9\u304c\u540c\u3058 mounted filesystem \u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<code>df -T<\/code>\u3001<code>stat -c '%d %n'<\/code>\u3001<code>findmnt -T<\/code> \u306e\u8aad\u307f\u53d6\u308a\u78ba\u8a8d\u304b\u3089\u59cb\u3081\u308b\u3068\u5b89\u5168\u3067\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u540c\u3058\u30c7\u30a3\u30b9\u30af\u306b\u898b\u3048\u308b\u306e\u306b\u5931\u6557\u3059\u308b<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u300c\u540c\u3058\u7269\u7406\u30c7\u30a3\u30b9\u30af\u300d\u3067\u306f\u306a\u304f\u300c\u540c\u3058 mount \u304b\u300d\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002Linux \u3067\u306f\u540c\u3058 filesystem \u304c\u8907\u6570\u7b87\u6240\u306b mount \u3055\u308c\u3066\u3044\u3066\u3082\u3001\u7570\u306a\u308b mount \u3092\u307e\u305f\u3050 hard link \u306f\u5931\u6557\u3057\u5f97\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u30b3\u30f3\u30c6\u30ca\u5185\u3067\u306f\u5931\u6557\u3057\u3001\u30db\u30b9\u30c8\u3067\u306f\u898b\u3048\u65b9\u304c\u9055\u3046<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">mount namespace \u3084 overlay \u306e\u5f71\u97ff\u3092\u7591\u3044\u307e\u3059\u3002\u30b3\u30f3\u30c6\u30ca\u5185\u3067\u898b\u3048\u3066\u3044\u308b\u30d1\u30b9\u3068\u30db\u30b9\u30c8\u5074\u306e mount \u69cb\u6210\u3092\u5206\u3051\u3066\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u672c\u756a\u30c7\u30fc\u30bf\u3001\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u76e3\u67fb\u8981\u4ef6\u304c\u7d61\u3080<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u305d\u306e\u5834\u3067 chmod \u3084 chown \u3092\u5e83\u3052\u305a\u3001\u5909\u66f4\u524d\u306b\u76f8\u8ac7\u5224\u65ad\u3078\u5207\u308a\u66ff\u3048\u307e\u3059\u3002\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\uff08<a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">https:\/\/jouhou.main.jp\/?page_id=26983<\/a>\uff09\u307e\u305f\u306f 0120-838-831 \u3067<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u306e\u76f8\u8ac7\u3092\u3054\u691c\u8a0e\u304f\u3060\u3055\u3044\u3002<\/td>\n<\/tr>\n<\/table>\n<p>\u3053\u3053\u3067\u62bc\u3055\u3048\u305f\u3044\u306e\u306f\u3001hard link \u306e\u6027\u8cea\u3067\u3059\u3002GNU Coreutils \u306e\u8aac\u660e\u3067\u3082\u3001hard link \u306f\u65e2\u5b58\u30d5\u30a1\u30a4\u30eb\u306b\u5bfe\u3059\u308b\u5225\u540d\u3067\u3042\u308a\u3001\u5143\u30d5\u30a1\u30a4\u30eb\u3068\u30ea\u30f3\u30af\u5148\u306f\u5b9f\u8cea\u7684\u306b\u540c\u3058 inode \u3092\u5171\u6709\u3057\u307e\u3059\u3002inode \u3092\u5171\u6709\u3059\u308b\u4ee5\u4e0a\u3001\u5225\u306e mounted filesystem \u3092\u307e\u305f\u3044\u3067\u65b0\u3057\u3044 hard link \u3092\u4f5c\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u9006\u306b\u8a00\u3048\u3070\u3001\u540c\u3058 inode \u3092\u5171\u6709\u3067\u304d\u306a\u3044\u914d\u7f6e\u3067\u3042\u308c\u3070\u3001\u6a29\u9650\u304c\u5341\u5206\u3067\u3082 hard link \u306f\u6210\u7acb\u3057\u307e\u305b\u3093\u3002\u3053\u306e\u524d\u63d0\u3092\u5916\u3057\u3066\u3057\u307e\u3046\u3068\u3001\u300c\u6a29\u9650\u3092\u4e0a\u3052\u305f\u306e\u306b\u76f4\u3089\u306a\u3044\u300d\u300c\u4e00\u6642\u7684\u306b\u30b3\u30d4\u30fc\u3078\u5909\u3048\u305f\u3089\u5225\u306e\u6574\u5408\u6027\u554f\u984c\u304c\u51fa\u305f\u300d\u3068\u3044\u3063\u305f\u3001\u73fe\u5834\u306b\u3068\u3063\u3066\u8aac\u660e\u3057\u3065\u3089\u3044\u4e8c\u6b21\u969c\u5bb3\u304c\u8d77\u304d\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u5b9f\u52d9\u3067\u306f\u3001\u3055\u3089\u306b\u5384\u4ecb\u306a\u8aa4\u89e3\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u306f\u3001\u300c\u540c\u3058\u30b9\u30c8\u30ec\u30fc\u30b8\u306b\u8f09\u3063\u3066\u3044\u308b\u306e\u3060\u304b\u3089 hard link \u3067\u304d\u308b\u306f\u305a\u3060\u300d\u3068\u3044\u3046\u611f\u899a\u3067\u3059\u3002Linux \u304c\u5224\u5b9a\u306b\u4f7f\u3046\u306e\u306f\u3001\u898b\u305f\u76ee\u306e\u8fd1\u3055\u3067\u306f\u306a\u304f\u3001\u5b9f\u969b\u306e mount \u5883\u754c\u3067\u3059\u3002<code>link(2)<\/code> \u306e\u8aac\u660e\u306b\u306f\u3001Linux \u3067\u306f\u540c\u3058 filesystem \u304c\u8907\u6570\u7b87\u6240\u306b mount \u3055\u308c\u3066\u3044\u3066\u3082\u3001\u7570\u306a\u308b mount \u3092\u307e\u305f\u3050 <code>link()<\/code> \u306f\u52d5\u4f5c\u3057\u306a\u3044\u3068\u3042\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001bind mount\u3001\u8907\u6570 mount\u3001\u30b3\u30f3\u30c6\u30ca\u306e mount namespace\u3001\u5171\u6709\u30dc\u30ea\u30e5\u30fc\u30e0\u306e\u5207\u308a\u65b9\u306b\u3088\u3063\u3066\u306f\u3001\u904b\u7528\u8005\u306e\u611f\u899a\u3067\u306f\u300c\u540c\u3058\u5834\u6240\u300d\u3067\u3082\u3001\u30ab\u30fc\u30cd\u30eb\u306b\u3068\u3063\u3066\u306f\u300c\u5225\u306e\u5883\u754c\u300d\u3067\u3059\u3002\u3053\u306e\u5dee\u3092\u898b\u843d\u3068\u3059\u3068\u3001\u969c\u5bb3\u306e\u53ce\u675f\u306b\u5fc5\u8981\u306a\u8ad6\u70b9\u6574\u7406\u304c\u9045\u308c\u307e\u3059\u3002<\/p>\n<hr>\n<h3>\u307e\u305a\u884c\u3046\u3079\u304d\u5b89\u5168\u306a\u521d\u52d5<\/h3>\n<p>EXDEV \u306e\u521d\u52d5\u3067\u5927\u5207\u306a\u306e\u306f\u3001\u66f8\u304d\u8fbc\u307f\u7cfb\u306e\u5bfe\u51e6\u3078\u6025\u304c\u305a\u3001\u8aad\u307f\u53d6\u308a\u4e2d\u5fc3\u3067\u4e8b\u5b9f\u3092\u63c3\u3048\u308b\u3053\u3068\u3067\u3059\u3002<code>findmnt --target<\/code> \u306f\u6307\u5b9a\u3057\u305f\u30d5\u30a1\u30a4\u30eb\u307e\u305f\u306f\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u5bfe\u3057\u3066\u3001\u305d\u306e\u30d1\u30b9\u304c\u5c5e\u3059\u308b filesystem \u3092\u8868\u793a\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001<code>stat<\/code> \u306e <code>%d<\/code> \u306f device number\uff08<code>st_dev<\/code>\uff09\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u73fe\u5834\u3067\u306f\u3001\u5143\u30d5\u30a1\u30a4\u30eb\u3068\u30ea\u30f3\u30af\u4f5c\u6210\u5148\u306e\u4e21\u65b9\u306b\u5bfe\u3057\u3066\u3053\u306e\u4e8c\u3064\u3092\u53d6\u308b\u3060\u3051\u3067\u3082\u3001\u300c\u5883\u754c\u3092\u307e\u305f\u3044\u3067\u3044\u308b\u306e\u304b\u300d\u300c\u898b\u3048\u3066\u3044\u308b mount \u304c\u9055\u3046\u306e\u304b\u300d\u306e\u8f2a\u90ed\u304c\u304b\u306a\u308a\u660e\u78ba\u306b\u306a\u308a\u307e\u3059\u3002\u554f\u984c\u304c configuration \u8d77\u56e0\u304b\u3001\u5358\u7d14\u306a\u30b3\u30de\u30f3\u30c9\u8d77\u56e0\u304b\u3092\u65e9\u3081\u306b\u5206\u3051\u3089\u308c\u308b\u305f\u3081\u3001\u793e\u5185\u8aac\u660e\u3067\u3082\u8a71\u304c\u6574\u7406\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre style=\"white-space:pre-wrap;\">df -T \/path\/to\/source \/path\/to\/dest stat -c '%d %n' \/path\/to\/source \/path\/to\/dest findmnt -T \/path\/to\/source findmnt -T \/path\/to\/dest<\/pre>\n<p>\u3053\u3053\u3067\u6570\u5b57\u3084 mount \u60c5\u5831\u304c\u4e00\u81f4\u3057\u306a\u3044\u306a\u3089\u3001\u300chard link \u3092\u4f5c\u308b\u524d\u63d0\u305d\u306e\u3082\u306e\u304c\u5408\u3063\u3066\u3044\u306a\u3044\u300d\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3068\u8003\u3048\u3066\u3088\u3044\u3067\u3057\u3087\u3046\u3002\u3053\u306e\u6bb5\u968e\u3067\u306f\u3001\u7121\u7406\u306b workaround \u3092\u5f53\u3066\u308b\u3088\u308a\u3001\u8981\u4ef6\u78ba\u8a8d\u306e\u307b\u3046\u304c\u91cd\u8981\u3067\u3059\u3002\u5bfe\u8c61\u304c\u5358\u306a\u308b\u4f5c\u696d\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3067\u3042\u308c\u3070 symlink \u3084 copy \u3078\u8a2d\u8a08\u3092\u5bc4\u305b\u308b\u4f59\u5730\u304c\u3042\u308a\u307e\u3059\u304c\u3001inode \u5171\u6709\u3092\u524d\u63d0\u306b\u3057\u305f\u51e6\u7406\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3001\u76e3\u67fb\u30ed\u30b0\u3001\u914d\u5e03\u7269\u7ba1\u7406\u3001\u5bb9\u91cf\u7ba1\u7406\u304c\u7d61\u3080\u5834\u5408\u306f\u8a71\u304c\u5909\u308f\u308a\u307e\u3059\u3002\u4e00\u822c\u8ad6\u3068\u3057\u3066\u306e\u300c\u76f4\u3057\u65b9\u300d\u306f\u5b58\u5728\u3057\u3066\u3082\u3001\u500b\u5225\u6848\u4ef6\u3067\u5b89\u5168\u304b\u3069\u3046\u304b\u306f\u69cb\u6210\u6b21\u7b2c\u3067\u3059\u3002\u305d\u3053\u304c\u3001\u904b\u7528\u73fe\u5834\u3067\u4e00\u822c\u8ad6\u306e\u9650\u754c\u304c\u73fe\u308c\u308b\u3068\u3053\u308d\u3067\u3059\u3002<\/p>\n<h3>\u300c\u6a29\u9650\u4e0d\u8db3\u300d\u3068\u306e\u898b\u5206\u3051\u65b9<\/h3>\n<p>\u6a29\u9650\u307e\u308f\u308a\u3067 hard link \u304c\u5931\u6557\u3059\u308b\u5834\u5408\u3001Linux \u306e <code>link(2)<\/code> \u306f <code>EPERM<\/code> \u3084\u95a2\u9023\u3059\u308b\u6a29\u9650\u5236\u7d04\u3092\u8fd4\u3057\u5f97\u307e\u3059\u3002\u305f\u3068\u3048\u3070 Linux 3.6 \u4ee5\u964d\u306f <code>\/proc\/sys\/fs\/protected_hardlinks<\/code> \u306b\u3088\u308b\u5236\u9650\u304c\u3042\u308a\u3001\u6761\u4ef6\u306b\u5408\u308f\u306a\u3044 hard link \u4f5c\u6210\u306f <code>EPERM<\/code> \u306b\u306a\u308a\u5f97\u307e\u3059\u3002\u9006\u306b\u3001\u4eca\u56de\u306e\u8ad6\u70b9\u3067\u3042\u308b <code>EXDEV<\/code> \u306f\u300c\u6a29\u9650\u304c\u8db3\u308a\u306a\u3044\u300d\u3067\u306f\u306a\u304f\u300c\u540c\u3058 mounted filesystem \u3067\u306f\u306a\u3044\u300d\u3067\u3059\u3002\u30a8\u30e9\u30fc\u756a\u53f7\u306e\u610f\u5473\u3092\u8aad\u307f\u9055\u3048\u306a\u3044\u3053\u3068\u304c\u3001\u30c0\u30e1\u30fc\u30b8\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306e\u7b2c\u4e00\u6b69\u3067\u3059\u3002\u3053\u3053\u3092\u6b63\u78ba\u306b\u628a\u63e1\u3057\u3066\u304a\u304f\u3068\u3001\u7121\u95a2\u4fc2\u306a\u6a29\u9650\u5909\u66f4\u3092\u907f\u3051\u3084\u3059\u304f\u306a\u308a\u3001\u76e3\u67fb\u3084\u5909\u66f4\u7ba1\u7406\u306e\u89b3\u70b9\u3067\u3082\u7b4b\u306e\u3088\u3044\u5bfe\u5fdc\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u7279\u306b\u3001\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u30b3\u30f3\u30c6\u30ca\u3001\u672c\u756a\u30c7\u30fc\u30bf\u3001\u76e3\u67fb\u8981\u4ef6\u304c\u7d61\u3080\u74b0\u5883\u3067\u306f\u3001\u300c\u3068\u308a\u3042\u3048\u305a root \u3067\u518d\u5b9f\u884c\u300d\u3084\u300c\u4e00\u65e6 copy \u3067\u9003\u304c\u3059\u300d\u3068\u3044\u3046\u5224\u65ad\u304c\u3001\u5f8c\u304b\u3089\u5225\u306e\u6574\u5408\u6027\u554f\u984c\u3084\u8aac\u660e\u30b3\u30b9\u30c8\u3092\u751f\u307f\u307e\u3059\u3002hard link \u304c\u5fc5\u8981\u306a\u306e\u304b\u3001\u5358\u306b\u540c\u540d\u53c2\u7167\u304c\u6b32\u3057\u3044\u306e\u304b\u3001\u3042\u308b\u3044\u306f\u914d\u7f6e\u8a2d\u8a08\u3092\u898b\u76f4\u3059\u3079\u304d\u306a\u306e\u304b\u306f\u3001\u6848\u4ef6\u3054\u3068\u306b\u524d\u63d0\u304c\u7570\u306a\u308a\u307e\u3059\u3002\u3053\u3046\u3057\u305f\u5834\u9762\u3067\u306f\u3001\u500b\u5225\u69cb\u6210\u3092\u898b\u306a\u3044\u307e\u307e\u4e00\u822c\u8ad6\u3067\u62bc\u3057\u5207\u308b\u3088\u308a\u3001<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u306e\u3088\u3046\u306b\u73fe\u5834\u69cb\u6210\u3092\u8e0f\u307e\u3048\u3066\u8a3a\u65ad\u3067\u304d\u308b\u5c02\u9580\u5bb6\u3078\u76f8\u8ac7\u3057\u305f\u307b\u3046\u304c\u3001\u7d50\u679c\u3068\u3057\u3066\u53ce\u675f\u304c\u65e9\u304f\u306a\u308b\u3053\u3068\u304c\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002\u3054\u76f8\u8ac7\u306f\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\uff08<a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">https:\/\/jouhou.main.jp\/?page_id=26983<\/a>\uff09\u307e\u305f\u306f 0120-838-831 \u304b\u3089\u53d7\u3051\u4ed8\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u7b2c1\u7ae0\u306e\u7d50\u8ad6\u306f\u660e\u78ba\u3067\u3059\u3002EXDEV (18) \u306f\u3001\u307e\u305a\u300c\u5883\u754c\u300d\u3092\u898b\u308b\u3079\u304d\u30a8\u30e9\u30fc\u3067\u3059\u3002hard link \u306f inode \u3092\u5171\u6709\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3042\u308a\u3001Linux \u306e <code>link(2)<\/code> \u306f\u7570\u306a\u308b mounted filesystem \u3092\u307e\u305f\u3050\u4f5c\u6210\u3092\u8a8d\u3081\u3066\u3044\u307e\u305b\u3093\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u6700\u521d\u306b\u884c\u3046\u3079\u304d\u3053\u3068\u306f\u6a29\u9650\u5909\u66f4\u3067\u306f\u306a\u304f\u3001mount\u3001device number\u3001namespace\u3001\u30b9\u30c8\u30ec\u30fc\u30b8\u69cb\u6210\u306e\u4e8b\u5b9f\u78ba\u8a8d\u3067\u3059\u3002\u3053\u306e\u9806\u756a\u3092\u5b88\u308b\u3060\u3051\u3067\u3001\u8aa4\u5bfe\u5fdc\u306e\u30ce\u30a4\u30ba\u30ab\u30c3\u30c8\u3068\u88ab\u5bb3\u6700\u5c0f\u5316\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\n<p>\u3000<\/p>\n<p> <a id=\"sec02\"><\/a> <\/p>\n<h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u7b2c2\u7ae0\uff1a\u307e\u305a\u7591\u3046\u3079\u304d\u5206\u65ad\u70b9\u2015\u2015\u5225\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u30fb\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u30fb\u30b3\u30f3\u30c6\u30ca\u306e\u4f0f\u7dda<\/h2>\n<p>EXDEV (18) \u3092\u898b\u305f\u3068\u304d\u3001\u73fe\u5834\u3067\u672c\u5f53\u306b\u96e3\u3057\u3044\u306e\u306f\u300c\u4f55\u304c\u5225\u306a\u306e\u304b\u300d\u304c\u76ee\u8996\u3060\u3051\u3067\u306f\u5206\u304b\u308a\u306b\u304f\u3044\u70b9\u3067\u3059\u3002\u30d1\u30b9\u306e\u4e26\u3073\u3060\u3051\u3092\u898b\u308b\u3068\u540c\u3058\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u968e\u5c64\u306e\u8fd1\u304f\u306b\u898b\u3048\u3066\u3082\u3001Linux \u304b\u3089\u898b\u308b\u3068 mount \u306e\u5883\u754c\u304c\u7570\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<code>link(2)<\/code> \u306e\u8aac\u660e\u306b\u306f\u3001\u5143\u306e\u30d1\u30b9\u3068\u65b0\u3057\u3044\u30d1\u30b9\u304c\u540c\u3058 mounted filesystem \u4e0a\u306b\u306a\u3044\u5834\u5408\u306b <code>EXDEV<\/code> \u306b\u306a\u308b\u3053\u3068\u3001\u3055\u3089\u306b Linux \u3067\u306f\u540c\u3058 filesystem \u304c\u8907\u6570\u7b87\u6240\u306b mount \u3055\u308c\u3066\u3044\u3066\u3082\u3001\u7570\u306a\u308b mount \u3092\u307e\u305f\u3050 hard link \u306f\u3067\u304d\u306a\u3044\u3053\u3068\u304c\u660e\u8a18\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u5206\u65ad\u70b9\u306f\u300c\u7269\u7406\u30c7\u30a3\u30b9\u30af\u304c\u540c\u3058\u304b\u3069\u3046\u304b\u300d\u3067\u306f\u306a\u304f\u3001\u300c\u3044\u307e\u898b\u3048\u3066\u3044\u308b\u540d\u524d\u7a7a\u9593\u3067\u540c\u3058 mount \u3068\u3057\u3066\u6271\u308f\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u300d\u3067\u3059\u3002\u3053\u3053\u3092\u62bc\u3055\u3048\u308b\u3060\u3051\u3067\u3001\u5207\u308a\u5206\u3051\u306e\u7cbe\u5ea6\u304c\u5927\u304d\u304f\u5909\u308f\u308a\u307e\u3059\u3002<\/p>\n<p>\u307e\u305a\u5178\u578b\u7684\u306a\u306e\u304c\u3001\u5225\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u3092\u307e\u305f\u3044\u3067\u3044\u308b\u30b1\u30fc\u30b9\u3067\u3059\u3002\u3053\u308c\u306f\u6700\u3082\u6559\u79d1\u66f8\u7684\u3067\u3059\u304c\u3001\u5b9f\u52d9\u3067\u306f\u610f\u5916\u306b\u898b\u843d\u3068\u3055\u308c\u307e\u3059\u3002\u305f\u3068\u3048\u3070 <code>\/var\/data<\/code> \u3068 <code>\/backup\/data<\/code> \u304c\u540c\u3058\u30b5\u30fc\u30d0\u4e0a\u306b\u3042\u308a\u3001\u904b\u7528\u62c5\u5f53\u8005\u304b\u3089\u898b\u308b\u3068\u300c\u540c\u3058\u30de\u30b7\u30f3\u5185\u306e\u30d1\u30b9\u300d\u306b\u898b\u3048\u3066\u3044\u3066\u3082\u3001\u7247\u65b9\u304c\u5225\u30dc\u30ea\u30e5\u30fc\u30e0\u3001\u5225 LV\u3001\u5225 mount \u3067\u3042\u308c\u3070 hard link \u306f\u6210\u7acb\u3057\u307e\u305b\u3093\u3002GNU Coreutils \u306e <code>ln<\/code> \u306e\u8aac\u660e\u3067\u3082\u3001hard link \u306f file system boundary \u3092\u8d8a\u3048\u3089\u308c\u306a\u3044\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u307e\u305a\u78ba\u8a8d\u3059\u3079\u304d\u306f\u300c\u540c\u4e00\u30db\u30b9\u30c8\u304b\u300d\u3067\u306f\u306a\u304f\u3001\u300c\u540c\u4e00 mounted filesystem \u304b\u300d\u3067\u3059\u3002\u3053\u3053\u3092\u66d6\u6627\u306b\u3057\u305f\u307e\u307e\u5bfe\u51e6\u3059\u308b\u3068\u3001\u95a2\u4fc2\u306e\u306a\u3044\u6a29\u9650\u5909\u66f4\u3084\u4e00\u6642\u30d5\u30a1\u30a4\u30eb\u306e\u9000\u907f\u3067\u5834\u3092\u6574\u3048\u305f\u3064\u3082\u308a\u304c\u3001\u6839\u672c\u6761\u4ef6\u306f\u4f55\u3082\u5909\u308f\u3063\u3066\u3044\u306a\u3044\u3001\u3068\u3044\u3046\u3053\u3068\u304c\u8d77\u3053\u308a\u307e\u3059\u3002<\/p>\n<hr>\n<h3>\u898b\u843d\u3068\u3057\u3084\u3059\u3044\u5206\u65ad\u70b9 1\uff1abind mount \u3068\u8907\u6570 mount<\/h3>\n<p>\u6b21\u306b\u5384\u4ecb\u306a\u306e\u304c\u3001bind mount \u3084\u540c\u4e00 filesystem \u306e\u8907\u6570 mount \u3067\u3059\u3002\u904b\u7528\u4e0a\u306f\u300c\u540c\u3058\u5b9f\u4f53\u3092\u5225\u306e\u5834\u6240\u306b\u898b\u305b\u3066\u3044\u308b\u3060\u3051\u300d\u3068\u8003\u3048\u305f\u304f\u306a\u308a\u307e\u3059\u304c\u3001Linux \u306e <code>link(2)<\/code> \u306e\u8aac\u660e\u306f\u3053\u306e\u70b9\u306b\u660e\u78ba\u3067\u3001\u540c\u3058 filesystem \u304c\u8907\u6570\u7b87\u6240\u306b mount \u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3067\u3082\u3001\u7570\u306a\u308b mount \u9593\u306e hard link \u306f\u5931\u6557\u3057\u5f97\u307e\u3059\u3002\u73fe\u5834\u3067\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u90fd\u5408\u3067\u898b\u305b\u308b\u30d1\u30b9\u3092\u6574\u7406\u3057\u305f\u7d50\u679c\u3001\u540c\u3058\u5185\u5bb9\u304c\u8907\u6570\u306e\u7d4c\u8def\u304b\u3089\u898b\u3048\u308b\u69cb\u6210\u306f\u73cd\u3057\u304f\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001\u300c\u898b\u3048\u3066\u3044\u308b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u304c\u8fd1\u3044\u300d\u300c\u5b9f\u4f53\u306f\u540c\u3058\u306b\u898b\u3048\u308b\u300d\u3068\u3044\u3046\u5370\u8c61\u3060\u3051\u3067\u5224\u65ad\u3059\u308b\u3068\u3001\u8ad6\u70b9\u304c\u305a\u308c\u307e\u3059\u3002hard link \u306e\u6210\u5426\u3092\u6c7a\u3081\u308b\u306e\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u898b\u305f\u76ee\u306e\u8fd1\u3055\u3067\u306f\u306a\u304f\u3001\u30ab\u30fc\u30cd\u30eb\u304c\u8a8d\u8b58\u3057\u3066\u3044\u308b mount \u306e\u5883\u754c\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u30bf\u30a4\u30d7\u306e\u969c\u5bb3\u3067\u306f\u3001<code>df -T<\/code> \u3060\u3051\u3067\u5224\u65ad\u3059\u308b\u3068\u60c5\u5831\u304c\u8db3\u308a\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<code>findmnt<\/code> \u306f <code>\/proc\/self\/mountinfo<\/code> \u306a\u3069\u3092\u4f7f\u3063\u3066 mount \u60c5\u5831\u3092\u691c\u7d22\u3067\u304d\u308b\u305f\u3081\u3001\u5bfe\u8c61\u30d1\u30b9\u3054\u3068\u306b\u300c\u3069\u306e mount \u306b\u5c5e\u3057\u3066\u3044\u308b\u304b\u300d\u3092\u8ffd\u3044\u3084\u3059\u3044\u70b9\u304c\u5b9f\u52d9\u5411\u304d\u3067\u3059\u3002\u307e\u305f\u3001<code>stat<\/code> \u3067\u306f <code>st_dev<\/code> \u3084 mount point \u95a2\u9023\u306e\u8868\u793a\u3092\u78ba\u8a8d\u3067\u304d\u308b\u305f\u3081\u3001\u8907\u6570\u306e\u60c5\u5831\u3092\u7a81\u304d\u5408\u308f\u305b\u308b\u3068\u300c\u30d1\u30b9\u306e\u898b\u3048\u65b9\u300d\u3068\u300c\u5b9f\u969b\u306e\u5883\u754c\u300d\u306e\u5dee\u304c\u898b\u3048\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u5358\u4e00\u30b3\u30de\u30f3\u30c9\u3067\u65ad\u5b9a\u305b\u305a\u3001\u8907\u6570\u306e\u8aad\u307f\u53d6\u308a\u7d50\u679c\u3092\u91cd\u306d\u3066\u5224\u65ad\u3059\u308b\u307b\u3046\u304c\u3001\u5f8c\u304b\u3089\u8aac\u660e\u8cac\u4efb\u3092\u679c\u305f\u3057\u3084\u3059\u304f\u3001\u904b\u7528\u4e0a\u3082\u53ce\u675f\u304c\u65e9\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<table style=\"border-collapse:collapse; width:100%; margin:16px 0;\">\n<tr>\n<th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u7591\u3046\u3079\u304d\u5206\u65ad\u70b9<\/th>\n<th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u73fe\u5834\u3067\u8d77\u304d\u3084\u3059\u3044\u898b\u3048\u65b9<\/th>\n<th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u8aad\u307f\u53d6\u308a\u4e2d\u5fc3\u306e\u78ba\u8a8d<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u5225\u30dc\u30ea\u30e5\u30fc\u30e0\u30fb\u5225 mount<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u540c\u3058\u30b5\u30fc\u30d0\u5185\u306a\u306e\u3067\u540c\u3058\u5834\u6240\u3060\u3068\u601d\u3044\u3084\u3059\u3044<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\"><code>df -T<\/code>\u3001<code>findmnt -T<\/code>\u3001<code>stat -c '%d %m %n'<\/code><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\">bind mount\u30fb\u8907\u6570 mount<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u5b9f\u4f53\u306f\u540c\u3058\u306a\u306e\u3067 hard link \u3067\u304d\u305d\u3046\u306b\u898b\u3048\u308b<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u5bfe\u8c61\u30d1\u30b9\u3054\u3068\u306b <code>findmnt -T<\/code> \u3092\u500b\u5225\u53d6\u5f97<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u30b3\u30f3\u30c6\u30ca\u306e mount namespace<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u30b3\u30f3\u30c6\u30ca\u5185\u3067\u306f\u540c\u3058\u968e\u5c64\u306b\u898b\u3048\u3066\u3082\u3001\u30db\u30b9\u30c8\u5074\u3068\u69cb\u6210\u304c\u7570\u306a\u308b<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u30b3\u30f3\u30c6\u30ca\u5185\u3068\u30db\u30b9\u30c8\u5074\u306e\u53cc\u65b9\u3067 mount \u60c5\u5831\u3092\u6bd4\u8f03<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\">overlayfs<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">stat \u306e\u6570\u5024\u3060\u3051\u3067\u306f\u5b9f\u4f53\u5c64\u306e\u7406\u89e3\u304c\u305a\u308c\u308b\u3053\u3068\u304c\u3042\u308b<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">overlay \u306e\u524d\u63d0\u78ba\u8a8d\u3001<code>findmnt<\/code> \u3068\u5b9f\u884c\u74b0\u5883\u306e\u628a\u63e1\u3092\u512a\u5148<\/td>\n<\/tr>\n<\/table>\n<h3>\u898b\u843d\u3068\u3057\u3084\u3059\u3044\u5206\u65ad\u70b9 2\uff1a\u30b3\u30f3\u30c6\u30ca\u3068 mount namespace<\/h3>\n<p>\u30b3\u30f3\u30c6\u30ca\u304c\u7d61\u3080\u3068\u3001\u3053\u306e\u554f\u984c\u306f\u3055\u3089\u306b\u8aac\u660e\u3057\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002mount namespace \u306f\u3001\u30d7\u30ed\u30bb\u30b9\u3054\u3068\u306b\u300c\u3069\u306e mount \u4e00\u89a7\u3092\u898b\u308b\u304b\u300d\u3092\u5206\u96e2\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002man page \u3067\u3082\u3001\u7570\u306a\u308b mount namespace \u306b\u5c5e\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u306f\u3001\u305d\u308c\u305e\u308c\u7570\u306a\u308b single-directory hierarchy \u3092\u898b\u308b\u3068\u8aac\u660e\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u30b3\u30f3\u30c6\u30ca\u5185\u304b\u3089\u898b\u305f <code>\/data<\/code> \u3068\u3001\u30db\u30b9\u30c8\u5074\u3067\u898b\u305f <code>\/data<\/code> \u306f\u3001\u540d\u524d\u304c\u540c\u3058\u3067\u3082\u540c\u3058 mount \u69cb\u6210\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u73fe\u5834\u3067\u300c\u540c\u3058\u30d1\u30b9\u306a\u306e\u306b\u3001\u306a\u305c\u7247\u65b9\u3060\u3051\u5931\u6557\u3059\u308b\u306e\u304b\u300d\u3068\u3044\u3046\u6df7\u4e71\u304c\u8d77\u304d\u3084\u3059\u3044\u306e\u306f\u3001\u3053\u306e\u5dee\u304c\u3042\u308b\u305f\u3081\u3067\u3059\u3002\u30b3\u30f3\u30c6\u30ca\u5185\u306e\u518d\u73fe\u7d50\u679c\u3060\u3051\u3067\u7d50\u8ad6\u3092\u51fa\u3059\u306e\u3067\u306f\u306a\u304f\u3001\u30db\u30b9\u30c8\u5074\u306e mount \u60c5\u5831\u3068\u7a81\u304d\u5408\u308f\u305b\u308b\u3053\u3068\u304c\u3001\u4f59\u8a08\u306a\u8a66\u884c\u932f\u8aa4\u306b\u30d6\u30ec\u30fc\u30ad\u3092\u304b\u3051\u308b\u8fd1\u9053\u3067\u3059\u3002<\/p>\n<p>\u7279\u306b CI \u5b9f\u884c\u57fa\u76e4\u3001Kubernetes \u306e volume\u3001\u30b3\u30f3\u30c6\u30ca\u30a4\u30e1\u30fc\u30b8\u4e0a\u306e\u30d1\u30b9\u3001\u6c38\u7d9a\u30dc\u30ea\u30e5\u30fc\u30e0\u306e\u5207\u308a\u5206\u3051\u304c\u5165\u3063\u3066\u304f\u308b\u3068\u3001\u969c\u5bb3\u306e\u767a\u751f\u7b87\u6240\u3068\u5b9f\u4f53\u306e\u914d\u7f6e\u304c\u4e00\u81f4\u3057\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5834\u5408\u3001\u300c\u30b3\u30f3\u30c6\u30ca\u5185\u3067\u30b3\u30de\u30f3\u30c9\u304c\u52d5\u304f\u304b\u300d\u3060\u3051\u3092\u898b\u3066\u3082\u3001\u8a2d\u8a08\u3068\u3057\u3066 hard link \u304c\u6210\u7acb\u3057\u5f97\u308b\u304b\u3069\u3046\u304b\u306f\u5224\u65ad\u3057\u304d\u308c\u307e\u305b\u3093\u3002\u30b3\u30f3\u30c6\u30ca\u5074\u3067\u4e00\u6642\u7684\u306b\u5225\u65b9\u5f0f\u3078\u9003\u304c\u305b\u305f\u3068\u3057\u3066\u3082\u3001\u518d\u30c7\u30d7\u30ed\u30a4\u5f8c\u306b\u540c\u3058\u69cb\u6210\u3078\u623b\u308c\u3070\u518d\u767a\u3059\u308b\u304a\u305d\u308c\u304c\u3042\u308a\u307e\u3059\u3002\u518d\u73fe\u78ba\u8a8d\u306e\u7d50\u679c\u3092\u305d\u306e\u307e\u307e\u4fee\u5fa9\u65b9\u91dd\u306b\u7d50\u3073\u3064\u3051\u305a\u3001\u69cb\u6210\u306e\u5c64\u3092\u5206\u3051\u3066\u8003\u3048\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<hr>\n<h3>\u898b\u843d\u3068\u3057\u3084\u3059\u3044\u5206\u65ad\u70b9 3\uff1aoverlayfs \u3067\u306f stat \u306e\u8aad\u307f\u65b9\u306b\u6ce8\u610f\u304c\u5fc5\u8981<\/h3>\n<p>overlayfs \u304c\u5165\u308b\u3068\u3001\u5207\u308a\u5206\u3051\u306f\u3055\u3089\u306b\u614e\u91cd\u3055\u304c\u5fc5\u8981\u3067\u3059\u3002Linux \u30ab\u30fc\u30cd\u30eb\u306e overlayfs \u6587\u66f8\u3067\u306f\u3001\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306f overlay filesystem \u306e <code>st_dev<\/code> \u3092\u8fd4\u3059\u4e00\u65b9\u3001\u975e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f lower filesystem \u307e\u305f\u306f upper filesystem \u306e <code>st_dev<\/code> \u3092\u8fd4\u3057\u5f97\u308b\u3053\u3068\u3001<code>st_ino<\/code> \u306f <code>st_dev<\/code> \u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u6271\u3046\u5fc5\u8981\u304c\u3042\u308b\u3053\u3068\u3001\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u305d\u306e\u5024\u304c\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u5bff\u547d\u306e\u4e2d\u3067\u5909\u5316\u3057\u5f97\u308b\u3053\u3068\u304c\u8aac\u660e\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3064\u307e\u308a\u3001overlayfs \u4e0a\u3067\u306f <code>stat<\/code> \u306e\u6570\u5024\u3060\u3051\u3092\u5358\u7d14\u6bd4\u8f03\u3057\u3066\u3082\u3001\u901a\u5e38\u306e\u5358\u5c64 filesystem \u3068\u540c\u3058\u611f\u899a\u3067\u306f\u8aad\u3081\u307e\u305b\u3093\u3002\u8aad\u307f\u53d6\u308a\u78ba\u8a8d\u305d\u306e\u3082\u306e\u306f\u6709\u52b9\u3067\u3059\u304c\u3001<code>stat<\/code> \u3060\u3051\u3067\u65ad\u5b9a\u305b\u305a\u3001<code>findmnt<\/code>\u3001\u30b3\u30f3\u30c6\u30ca\u69cb\u6210\u3001upper\/lower \u306e\u6574\u7406\u3092\u5408\u308f\u305b\u3066\u884c\u3046\u307b\u3046\u304c\u5b89\u5168\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u70b9\u306f\u3001\u73fe\u5834\u30ea\u30fc\u30c0\u30fc\u3084\u60c5\u30b7\u30b9\u306e\u65b9\u304c\u95a2\u4fc2\u8005\u3078\u8aac\u660e\u3059\u308b\u5834\u9762\u3067\u3082\u91cd\u8981\u3067\u3059\u3002\u6570\u5024\u304c\u540c\u3058\u3060\u3063\u305f\u3001\u9055\u3063\u3066\u3044\u305f\u3001\u3068\u3044\u3046\u4e00\u70b9\u3060\u3051\u3067\u306f\u3001\u306a\u305c hard link \u304c\u6210\u7acb\u3057\u306a\u3044\u306e\u304b\u3092\u5341\u5206\u306b\u8aac\u660e\u3067\u304d\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u7279\u306b\u76e3\u67fb\u8981\u4ef6\u3084\u672c\u756a\u30c7\u30fc\u30bf\u304c\u7d61\u3080\u5834\u5408\u306f\u3001\u300c\u78ba\u8a8d\u3057\u305f\u30b3\u30de\u30f3\u30c9\u300d\u3068\u540c\u3058\u304f\u3089\u3044\u300c\u305d\u306e\u7d50\u679c\u3092\u3069\u3046\u89e3\u91c8\u3057\u305f\u304b\u300d\u304c\u554f\u308f\u308c\u307e\u3059\u3002\u4e00\u822c\u8ad6\u3068\u3057\u3066\u306e\u624b\u9806\u3092\u77e5\u3063\u3066\u3044\u3066\u3082\u3001\u500b\u5225\u6848\u4ef6\u306e mount \u8a2d\u8a08\u3001\u30b3\u30f3\u30c6\u30ca\u8a2d\u8a08\u3001\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u904b\u7528\u307e\u3067\u8e0f\u307e\u3048\u308b\u5fc5\u8981\u304c\u3042\u308b\u306a\u3089\u3001\u69cb\u6210\u3092\u898b\u306a\u304c\u3089\u5224\u65ad\u3057\u305f\u307b\u3046\u304c\u7d50\u679c\u7684\u306b\u65e9\u304f\u30af\u30fc\u30eb\u30c0\u30a6\u30f3\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u305d\u3046\u3057\u305f\u5834\u9762\u3067\u306f\u3001<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u306e\u76f8\u8ac7\u3092\u3054\u691c\u8a0e\u3044\u305f\u3060\u304f\u306e\u304c\u73fe\u5b9f\u7684\u3067\u3059\u3002\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\u306f <a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">https:\/\/jouhou.main.jp\/?page_id=26983<\/a>\u3001\u304a\u96fb\u8a71\u306f 0120-838-831 \u3067\u3059\u3002<\/p>\n<p>\u7b2c2\u7ae0\u3067\u62bc\u3055\u3048\u305f\u3044\u306e\u306f\u3001EXDEV \u306e\u300c\u539f\u56e0\u5019\u88dc\u300d\u306f\u4e00\u3064\u3067\u306f\u306a\u3044\u3082\u306e\u306e\u3001\u3069\u308c\u3082\u6700\u7d42\u7684\u306b\u306f\u5883\u754c\u306e\u554f\u984c\u306b\u53ce\u308c\u3093\u3059\u308b\u3068\u3044\u3046\u70b9\u3067\u3059\u3002\u5225\u30dc\u30ea\u30e5\u30fc\u30e0\u3001bind mount\u3001\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u30b3\u30f3\u30c6\u30ca\u3001overlayfs \u306f\u3001\u3044\u305a\u308c\u3082\u300c\u540c\u3058\u5834\u6240\u306b\u898b\u3048\u308b\u306e\u306b\u3001\u30ab\u30fc\u30cd\u30eb\u304b\u3089\u306f\u540c\u3058\u6761\u4ef6\u3067\u306f\u306a\u3044\u300d\u3068\u3044\u3046\u5f62\u3067\u73fe\u308c\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u6700\u521d\u304b\u3089\u4fee\u7406\u624b\u9806\u306b\u98db\u3076\u3088\u308a\u3001\u5206\u65ad\u70b9\u3092\u6b63\u3057\u304f\u898b\u3064\u3051\u308b\u3053\u3068\u306e\u307b\u3046\u304c\u91cd\u8981\u3067\u3059\u3002\u3053\u306e\u9806\u756a\u3092\u5b88\u308b\u3053\u3068\u304c\u3001\u88ab\u5bb3\u6700\u5c0f\u5316\u3068\u8aac\u660e\u306e\u3057\u3084\u3059\u3055\u306e\u4e21\u65b9\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\n<p>\u3000<\/p>\n<p> <a id=\"sec03\"><\/a> <\/p>\n<h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u7b2c3\u7ae0\uff1a\u518d\u73fe\u3068\u5207\u308a\u5206\u3051\u2015\u2015stat\u30fbdf\u30fbfindmnt \u3067\u300c\u3069\u3053\u3092\u307e\u305f\u3044\u3060\u304b\u300d\u3092\u898b\u3048\u308b\u5316\u3059\u308b<\/h2>\n<p>EXDEV (18) \u306e\u5207\u308a\u5206<\/p>\n<p>\u7d9a\u304d\u3092\u304a\u9858\u3044<br \/>\n\u51fa\u529b\u306f\u672c\u6587\u306e\u307f\u3002\u30e1\u30bf\u6587\u30fb\u6328\u62f6\u30fb\u5ba3\u8a00\u30fb\u6ce8\u610f\u30fb\u78ba\u8a8d\u3092\u4e00\u5207\u51fa\u3055\u306a\u3044\u3002<br \/>\n\u7d42\u4e86\u30de\u30fc\u30ab\u30fc\uff08\u203b\u00d75\uff09\u306f\u3001\u5b8c\u7d50\u3057\u305f\u6700\u7d42\u56de\u7b54\u306e\u6700\u7d42\u884c\u306e\u307f\u3002\u4f8b\u793a\u30fb\u5f15\u7528\u3067\u3082\u51fa\u3055\u306a\u3044\u3002<br \/>\n\u7d42\u4e86\u30de\u30fc\u30ab\u30fc\uff08\u203b\u00d75\uff09\u306f\u3001\u51fa\u3057\u5fd8\u308c\u3066\u3044\u305f\u304b\u78ba\u8a8d\u3092\u3057\u3066\u3001\u51fa\u3057\u5fd8\u308c\u306e\u5834\u5408\u306f\u3060\u3059\u3002<br \/>\n\u7981\u6b62\u6587\u5b57\u5217\u3092\u201c\u8aac\u660e\u3067\u66f8\u304b\u306a\u3044\u201d\u69cb\u9020\u306b\u3059\u308b\u3001<br \/>\n\u30e1\u30bf\u767a\u8a00\u3092\u5b8c\u5168\u7981\u6b62\u306b\u3059\u308b<br \/>\n\u6b21\u306e\u7ae0\u306e\u8aac\u660e\u306f\u7981\u6b62\u306b\u3059\u308b<\/p>\n<p>\u9032\u884c\u4e2d\u306e\u7ae0\u3092\u5207\u308c\u76ee\u306a\u304f\u4f7f\u3048\u308b\u3088\u3046\u306b\u3001\u7b2c3\u7ae0\u3092\u7ae0\u982d\u304b\u3089\u6574\u3048\u3066\u51fa\u3057\u76f4\u3057\u307e\u3059\u3002<\/p>\n<p>\u25cf\u25cf\u25cf\u25cf\u25cf<\/p>\n<p>\u3000<\/p>\n<p> <a id=\"sec03\"><\/a> <\/p>\n<h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u7b2c3\u7ae0\uff1a\u518d\u73fe\u3068\u5207\u308a\u5206\u3051\u2015\u2015stat\u30fbdf\u30fbfindmnt \u3067\u300c\u3069\u3053\u3092\u307e\u305f\u3044\u3060\u304b\u300d\u3092\u898b\u3048\u308b\u5316\u3059\u308b<\/h2>\n<p>EXDEV (18) \u306e\u5207\u308a\u5206\u3051\u3067\u5927\u5207\u306a\u306e\u306f\u3001\u300chard link \u304c\u4f5c\u308c\u306a\u304b\u3063\u305f\u300d\u3068\u3044\u3046\u7d50\u679c\u3060\u3051\u3092\u898b\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u300c\u3069\u306e\u5883\u754c\u3092\u307e\u305f\u3044\u3060\u306e\u304b\u300d\u3092\u9806\u756a\u306b\u898b\u3048\u308b\u5316\u3059\u308b\u3053\u3068\u3067\u3059\u3002Linux \u306e <code>link(2)<\/code> \u306f\u3001\u5143\u306e\u30d1\u30b9\u3068\u65b0\u3057\u3044\u30d1\u30b9\u304c\u540c\u3058 mounted filesystem \u4e0a\u306b\u306a\u3044\u3068\u304d\u306b <code>EXDEV<\/code> \u3092\u8fd4\u3057\u307e\u3059\u3002\u3057\u304b\u3082 Linux \u3067\u306f\u3001\u540c\u3058 filesystem \u304c\u8907\u6570\u7b87\u6240\u306b mount \u3055\u308c\u3066\u3044\u3066\u3082\u3001\u7570\u306a\u308b mount \u3092\u307e\u305f\u3050 hard link \u306f\u52d5\u4f5c\u3057\u307e\u305b\u3093\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u5207\u308a\u5206\u3051\u306e\u4e2d\u5fc3\u306f\u300c\u540c\u3058\u30c7\u30a3\u30b9\u30af\u304b\u300d\u3067\u306f\u306a\u304f\u3001\u300c\u540c\u3058 mount \u3068\u3057\u3066\u898b\u3048\u3066\u3044\u308b\u304b\u300d\u3067\u3059\u3002\u3053\u3053\u3092\u4e8b\u5b9f\u30d9\u30fc\u30b9\u3067\u62bc\u3055\u3048\u308b\u3068\u3001\u6a29\u9650\u5909\u66f4\u3084\u904b\u7528\u5909\u66f4\u306b\u65e9\u304f\u98db\u3073\u3064\u304b\u305a\u306b\u6e08\u307f\u3001\u53ce\u675f\u307e\u3067\u306e\u5224\u65ad\u304c\u5b89\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<p>\u5b9f\u52d9\u3067\u4f7f\u3044\u3084\u3059\u3044\u78ba\u8a8d\u624b\u6bb5\u306f\u3001<code>df<\/code>\u3001<code>stat<\/code>\u3001<code>findmnt<\/code> \u306e\u4e09\u3064\u3067\u3059\u3002<code>df<\/code> \u306f\u5bfe\u8c61\u30d1\u30b9\u304c\u3069\u306e filesystem \u306b\u4e57\u3063\u3066\u3044\u308b\u304b\u3068 filesystem type \u3092\u628a\u63e1\u3059\u308b\u306e\u306b\u5411\u3044\u3066\u304a\u308a\u3001<code>stat<\/code> \u306f device \u756a\u53f7\u3084 mount point \u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002GNU Coreutils \u306e <code>stat<\/code> \u3067\u306f\u3001<code>%d<\/code> \u3067 device \u756a\u53f7\u3001<code>%m<\/code> \u3067 mount point \u3092\u51fa\u529b\u3067\u304d\u307e\u3059\u3002\u3055\u3089\u306b <code>findmnt<\/code> \u306f mount \u60c5\u5831\u3092\u691c\u7d22\u3059\u308b\u305f\u3081\u306e\u30b3\u30de\u30f3\u30c9\u3067\u3001<code>\/proc\/self\/mountinfo<\/code> \u306a\u3069\u3092\u3082\u3068\u306b\u5bfe\u8c61\u30d1\u30b9\u304c\u3069\u306e mount \u306b\u5c5e\u3057\u3066\u3044\u308b\u304b\u3092\u8ffd\u3048\u307e\u3059\u3002\u4e09\u3064\u3092\u91cd\u306d\u308b\u3068\u3001\u898b\u305f\u76ee\u3067\u306f\u540c\u3058\u3088\u3046\u306b\u898b\u3048\u308b\u30d1\u30b9\u3067\u3082\u3001Linux \u304c\u3069\u3046\u8a8d\u8b58\u3057\u3066\u3044\u308b\u304b\u3092\u304b\u306a\u308a\u6b63\u78ba\u306b\u6574\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre style=\"white-space:pre-wrap;\">df -T \/path\/to\/source \/path\/to\/dest stat -c '%d %m %n' \/path\/to\/source \/path\/to\/dest findmnt -T \/path\/to\/source findmnt -T \/path\/to\/dest<\/pre>\n<p>\u3053\u306e\u3068\u304d\u306e\u898b\u65b9\u306b\u306f\u9806\u756a\u304c\u3042\u308a\u307e\u3059\u3002\u6700\u521d\u306b <code>df -T<\/code> \u3067\u3001\u5143\u30d5\u30a1\u30a4\u30eb\u5074\u3068\u30ea\u30f3\u30af\u4f5c\u6210\u5148\u306e\u89aa\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u5074\u304c\u540c\u3058 filesystem type \u3068\u540c\u3058 mount \u7cfb\u5217\u306b\u898b\u3048\u308b\u304b\u3092\u3056\u3063\u304f\u308a\u78ba\u8a8d\u3057\u307e\u3059\u3002\u6b21\u306b <code>stat -c '%d %m %n'<\/code> \u3067\u3001\u305d\u308c\u305e\u308c\u306e device \u756a\u53f7\u3068 mount point \u3092\u898b\u307e\u3059\u3002\u6700\u5f8c\u306b <code>findmnt -T<\/code> \u3067\u3001\u5bfe\u8c61\u30d1\u30b9\u304c\u5b9f\u969b\u306b\u3069\u306e mount \u306b\u7d50\u3073\u4ed8\u3044\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3053\u3053\u3067 <code>%d<\/code> \u3084 mount point \u304c\u9055\u3046\u3001\u307e\u305f\u306f <code>findmnt<\/code> \u304c\u5225\u306e mount \u3092\u8fd4\u3059\u306a\u3089\u3001hard link \u3092\u4f5c\u308b\u524d\u63d0\u304c\u305d\u3082\u305d\u3082\u4e00\u81f4\u3057\u3066\u3044\u306a\u3044\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3068\u5224\u65ad\u3067\u304d\u307e\u3059\u3002<\/p>\n<table style=\"border-collapse:collapse; width:100%; margin:16px 0;\">\n<tr>\n<th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u78ba\u8a8d\u30b3\u30de\u30f3\u30c9<\/th>\n<th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u4e3b\u306b\u898b\u308b\u70b9<\/th>\n<th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u5224\u65ad\u306e\u3057\u304b\u305f<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\"><code>df -T<\/code><\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">filesystem \u3068 type<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u5225 filesystem \u306b\u898b\u3048\u308b\u306a\u3089\u3001\u307e\u305a\u5883\u754c\u306e\u5b58\u5728\u3092\u7591\u3044\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\"><code>stat -c '%d %m %n'<\/code><\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">device \u756a\u53f7\u3001mount point\u3001\u5bfe\u8c61\u540d<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u5143\u3068\u5148\u3067 <code>%d<\/code> \u3084 <code>%m<\/code> \u304c\u305a\u308c\u308b\u306a\u3089\u3001\u898b\u3048\u3066\u3044\u308b\u524d\u63d0\u304c\u4e00\u81f4\u3057\u3066\u3044\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\"><code>findmnt -T<\/code><\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u5bfe\u8c61\u30d1\u30b9\u304c\u5c5e\u3059\u308b mount<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">bind mount\u3001\u8907\u6570 mount\u3001namespace \u306e\u5dee\u5206\u3092\u8ffd\u3044\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/table>\n<p>\u305f\u3068\u3048\u3070\u3001<code>df -T<\/code> \u3067\u306f\u4f3c\u305f\u3088\u3046\u306a\u7d50\u679c\u306b\u898b\u3048\u3066\u3082\u3001<code>stat<\/code> \u306e <code>%m<\/code> \u304c\u7570\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002GNU Coreutils \u306e\u8aac\u660e\u3067\u306f\u3001<code>stat<\/code> \u306e <code>%m<\/code> \u306f <code>df<\/code> \u3068\u8fd1\u3044 mount point \u3092\u51fa\u3057\u307e\u3059\u304c\u3001bind mount \u306e\u5225\u540d\u3092\u8fd4\u3059\u306a\u3069\u3001\u8aad\u307f\u65b9\u306b\u306f\u524d\u63d0\u304c\u3042\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u300cdf \u3067\u540c\u3058\u306b\u898b\u3048\u305f\u304b\u3089\u78ba\u5b9a\u300d\u3067\u306f\u306a\u304f\u3001\u300cdf \u3067\u5168\u4f53\u50cf\u3092\u898b\u3066\u3001stat \u3067\u5bfe\u8c61\u30d1\u30b9\u306e\u898b\u3048\u65b9\u3092\u5408\u308f\u305b\u3001findmnt \u3067 mount \u60c5\u5831\u3092\u78ba\u5b9a\u3059\u308b\u300d\u3068\u3044\u3046\u4f7f\u3044\u5206\u3051\u304c\u5b9f\u52d9\u5411\u304d\u3067\u3059\u3002\u5358\u4e00\u306e\u30b3\u30de\u30f3\u30c9\u7d50\u679c\u3092\u904e\u4fe1\u3057\u306a\u3044\u307b\u3046\u304c\u3001\u3042\u3068\u3067\u8aac\u660e\u304c\u3076\u308c\u307e\u305b\u3093\u3002<\/p>\n<hr>\n<h3>\u518d\u73fe\u78ba\u8a8d\u306f\u300c\u58ca\u3055\u306a\u3044\u7bc4\u56f2\u300d\u3067\u5341\u5206\u3067\u3059<\/h3>\n<p>EXDEV \u306e\u518d\u73fe\u78ba\u8a8d\u3068\u3044\u3046\u3068\u3001\u3064\u3044\u5225\u306e\u30b3\u30de\u30f3\u30c9\u3067\u56de\u907f\u7b56\u307e\u3067\u8a66\u3057\u305f\u304f\u306a\u308a\u307e\u3059\u304c\u3001\u6700\u521d\u306e\u6bb5\u968e\u3067\u306f\u8aad\u307f\u53d6\u308a\u4e2d\u5fc3\u3067\u5341\u5206\u3067\u3059\u3002\u306a\u305c\u306a\u3089\u3001\u554f\u984c\u306e\u672c\u8cea\u306f\u300chard link \u304c\u4f5c\u308c\u306a\u3044\u7406\u7531\u306e\u7279\u5b9a\u300d\u3067\u3042\u3063\u3066\u3001\u300c\u4e00\u6642\u7684\u306b\u5225\u306e\u65b9\u6cd5\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u7f6e\u3051\u308b\u304b\u300d\u306e\u78ba\u8a8d\u3067\u306f\u306a\u3044\u304b\u3089\u3067\u3059\u3002Linux \u306e <code>link(2)<\/code> \u304c\u793a\u3057\u3066\u3044\u308b\u306e\u306f mount \u5883\u754c\u306e\u4e0d\u4e00\u81f4\u3067\u3042\u308a\u3001\u56de\u907f\u624b\u6bb5\u3092\u5148\u306b\u8a66\u3057\u3066\u3082\u3001\u305d\u306e\u5883\u754c\u81ea\u4f53\u306f\u5909\u308f\u308a\u307e\u305b\u3093\u3002\u7279\u306b\u672c\u756a\u74b0\u5883\u3001\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u76e3\u67fb\u5bfe\u8c61\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3067\u306f\u3001\u4e00\u6642\u7684\u306a\u66f8\u304d\u8fbc\u307f\u304c\u5225\u306e\u8aac\u660e\u30b3\u30b9\u30c8\u3092\u751f\u3080\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u6700\u521d\u306f\u8aad\u307f\u53d6\u308a\u4e2d\u5fc3\u3067\u5834\u3092\u6574\u3048\u3001\u4e8b\u5b9f\u95a2\u4fc2\u3092\u63c3\u3048\u308b\u307b\u3046\u304c\u5b89\u5168\u3067\u3059\u3002<\/p>\n<p>\u305d\u306e\u3046\u3048\u3067\u3001\u518d\u73fe\u78ba\u8a8d\u3067\u306f\u300c\u3069\u306e\u30da\u30a2\u3067\u5931\u6557\u3059\u308b\u304b\u300d\u3092\u6574\u7406\u3059\u308b\u3068\u52b9\u679c\u7684\u3067\u3059\u3002\u5143\u30d5\u30a1\u30a4\u30eb A \u3068\u30ea\u30f3\u30af\u5148\u5019\u88dc B\u3001\u5143\u30d5\u30a1\u30a4\u30eb A \u3068\u5225\u306e\u5019\u88dc C\u3001\u540c\u3058\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u5185\u3067\u306e hard link\u3001\u5225\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3067\u306e hard link\u3001\u3068\u3044\u3046\u3088\u3046\u306b\u6761\u4ef6\u3092\u5c11\u3057\u305a\u3064\u5909\u3048\u308b\u3068\u3001\u5883\u754c\u304c\u3069\u3053\u306b\u3042\u308b\u304b\u304c\u898b\u3048\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u3082\u3057\u540c\u4e00\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3067\u306f\u6210\u529f\u3057\u3001\u5225\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3067\u5931\u6557\u3059\u308b\u306a\u3089\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ed\u30b8\u30c3\u30af\u306e\u554f\u984c\u3088\u308a\u5148\u306b mount \u5883\u754c\u3092\u7591\u3046\u307b\u3046\u304c\u81ea\u7136\u3067\u3059\u3002\u9006\u306b\u3001\u540c\u4e00\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3067\u3082\u5931\u6557\u3059\u308b\u306a\u3089\u3001EXDEV \u4ee5\u5916\u306e\u30a8\u30e9\u30fc\u756a\u53f7\u3084\u30d5\u30a1\u30a4\u30eb\u7a2e\u5225\u3001\u4fdd\u8b77\u8a2d\u5b9a\u3082\u8996\u91ce\u306b\u5165\u308a\u307e\u3059\u3002\u30a8\u30e9\u30fc\u756a\u53f7\u306e\u610f\u5473\u3092\u8ef8\u306b\u6761\u4ef6\u5dee\u5206\u3092\u898b\u308b\u3053\u3068\u3067\u3001\u8b70\u8ad6\u304c\u904e\u71b1\u3057\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u30b3\u30f3\u30c6\u30ca\u3084 bind mount \u3067\u306f\u300c\u3069\u3053\u3067\u5b9f\u884c\u3057\u305f\u304b\u300d\u3092\u6b8b\u3057\u307e\u3059<\/h3>\n<p>\u30b3\u30f3\u30c6\u30ca\u3084 CI \u57fa\u76e4\u304c\u7d61\u3080\u5834\u5408\u306f\u3001\u30b3\u30de\u30f3\u30c9\u7d50\u679c\u305d\u306e\u3082\u306e\u306b\u52a0\u3048\u3066\u3001\u300c\u305d\u306e\u30b3\u30de\u30f3\u30c9\u3092\u3069\u306e namespace\u3001\u3069\u306e\u5b9f\u884c\u74b0\u5883\u3067\u53d6\u3063\u305f\u304b\u300d\u3092\u6b8b\u3059\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<code>findmnt<\/code> \u306f <code>\/proc\/self\/mountinfo<\/code> \u306a\u3069\u3092\u53c2\u7167\u3059\u308b\u305f\u3081\u3001\u53d6\u5f97\u3057\u305f\u74b0\u5883\u304c\u5909\u308f\u308c\u3070\u898b\u3048\u308b mount \u60c5\u5831\u3082\u5909\u308f\u308a\u5f97\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u30db\u30b9\u30c8\u5074\u3067\u63a1\u3063\u305f\u7d50\u679c\u3068\u30b3\u30f3\u30c6\u30ca\u5185\u3067\u63a1\u3063\u305f\u7d50\u679c\u306f\u3001\u3069\u3061\u3089\u304b\u304c\u9593\u9055\u3044\u3068\u3044\u3046\u3088\u308a\u300c\u898b\u3066\u3044\u308b\u4e16\u754c\u304c\u9055\u3046\u300d\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u6574\u7406\u3092\u5148\u306b\u3057\u3066\u304a\u304f\u3068\u3001\u300c\u540c\u3058\u30b3\u30de\u30f3\u30c9\u306a\u306e\u306b\u7d50\u679c\u304c\u9055\u3046\u300d\u3068\u3044\u3046\u6df7\u4e71\u3092\u6e1b\u3089\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u5b9f\u969b\u306e\u904b\u7528\u3067\u306f\u3001\u3053\u3053\u3067\u300c\u3068\u308a\u3042\u3048\u305a symlink \u3067\u7f6e\u304d\u63db\u3048\u308b\u300d\u300c\u4e00\u6642\u7684\u306b copy \u306b\u5909\u3048\u308b\u300d\u3068\u3044\u3046\u5224\u65ad\u304c\u691c\u8a0e\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u305d\u306e\u5224\u65ad\u304c\u5b89\u5168\u304b\u3069\u3046\u304b\u306f\u3001inode \u5171\u6709\u3092\u524d\u63d0\u306b\u3057\u305f\u51e6\u7406\u304c\u3042\u308b\u304b\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3084\u76e3\u67fb\u30ed\u30b0\u304c\u540c\u3058\u524d\u63d0\u3092\u6301\u3063\u3066\u3044\u308b\u304b\u3001\u5bb9\u91cf\u3084\u540c\u671f\u306e\u8003\u3048\u65b9\u304c\u5909\u308f\u3089\u306a\u3044\u304b\u3067\u5927\u304d\u304f\u7570\u306a\u308a\u307e\u3059\u3002\u4e00\u822c\u8ad6\u3068\u3057\u3066\u306e\u4ee3\u66ff\u7b56\u306f\u5b58\u5728\u3057\u3066\u3082\u3001\u500b\u5225\u6848\u4ef6\u3067\u306f\u5b89\u5168\u6027\u306e\u5224\u65ad\u304c\u5225\u554f\u984c\u3067\u3059\u3002\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u30b3\u30f3\u30c6\u30ca\u3001\u672c\u756a\u30c7\u30fc\u30bf\u3001\u76e3\u67fb\u8981\u4ef6\u304c\u7d61\u3080\u5834\u5408\u306f\u3001\u7121\u7406\u306b\u305d\u306e\u5834\u3067\u69cb\u6210\u3092\u89e6\u308b\u3088\u308a\u3001<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u76f8\u8ac7\u3057\u3066\u3001\u8aad\u307f\u53d6\u308a\u7d50\u679c\u3092\u3082\u3068\u306b\u6700\u5c0f\u5909\u66f4\u306e\u9078\u629e\u80a2\u3092\u6574\u7406\u3057\u305f\u307b\u3046\u304c\u3001\u7d50\u679c\u3068\u3057\u3066\u30c0\u30e1\u30fc\u30b8\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306b\u3064\u306a\u304c\u308a\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u3054\u76f8\u8ac7\u306f <a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0<\/a> \u307e\u305f\u306f 0120-838-831 \u3067\u53d7\u3051\u4ed8\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u7b2c3\u7ae0\u306e\u8981\u70b9\u306f\u660e\u78ba\u3067\u3059\u3002EXDEV (18) \u306e\u5207\u308a\u5206\u3051\u306f\u3001\u52d8\u3084\u7d4c\u9a13\u3060\u3051\u3067\u9032\u3081\u308b\u3088\u308a\u3001<code>df<\/code> \u3067\u5168\u4f53\u50cf\u3001<code>stat<\/code> \u3067\u5bfe\u8c61\u306e\u5c5e\u6027\u3001<code>findmnt<\/code> \u3067 mount \u306e\u5b9f\u4f53\u3092\u62bc\u3055\u3048\u308b\u9806\u756a\u306b\u3059\u308b\u3068\u6574\u7406\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u5143\u3068\u5148\u304c\u540c\u3058 mounted filesystem \u304b\u3069\u3046\u304b\u3092\u4e8b\u5b9f\u3067\u56fa\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308c\u3070\u3001\u4fee\u5fa9\u65b9\u91dd\u306e\u8b70\u8ad6\u3082\u843d\u3061\u7740\u304d\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u9006\u306b\u3001\u5883\u754c\u304c\u898b\u3048\u306a\u3044\u307e\u307e\u4ee3\u66ff\u7b56\u3078\u9032\u3080\u3068\u3001\u3042\u3068\u304b\u3089\u5225\u306e\u8ad6\u70b9\u304c\u5897\u3048\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u5207\u308a\u5206\u3051\u306e\u6bb5\u968e\u3067\u5834\u3092\u6574\u3048\u3066\u304a\u304f\u3053\u3068\u304c\u3001\u7d50\u679c\u3068\u3057\u3066\u88ab\u5bb3\u6700\u5c0f\u5316\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\n<p>\u3000<\/p>\n<p> <a id=\"sec04\"><\/a> <\/p>\n<h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u7b2c4\u7ae0\uff1a\u4fee\u5fa9\u65b9\u91dd\u3092\u8aa4\u3089\u306a\u3044\u2015\u2015\u30cf\u30fc\u30c9\u30ea\u30f3\u30af\u3092\u5916\u3059\u6761\u4ef6\u3068\u6700\u5c0f\u5909\u66f4\u3067\u76f4\u3059\u6761\u4ef6<\/h2>\n<p>EXDEV (18) \u306e\u5207\u308a\u5206\u3051\u304c\u7d42\u308f\u3063\u305f\u3042\u3068\u306b\u91cd\u8981\u306b\u306a\u308b\u306e\u306f\u3001\u300c\u3067\u306f\u4f55\u306b\u7f6e\u304d\u63db\u3048\u308b\u304b\u300d\u3067\u306f\u306a\u304f\u3001\u300c\u305d\u3082\u305d\u3082 hard link \u304c\u5fc5\u8981\u306a\u8981\u4ef6\u306a\u306e\u304b\u300d\u3092\u898b\u6975\u3081\u308b\u3053\u3068\u3067\u3059\u3002Linux \u306e <code>link(2)<\/code> \u306f hard link \u3092\u65e2\u5b58\u30d5\u30a1\u30a4\u30eb\u306b\u5bfe\u3059\u308b\u65b0\u3057\u3044\u540d\u524d\u3068\u3057\u3066\u5b9a\u7fa9\u3057\u3066\u304a\u308a\u3001\u4e21\u8005\u306f\u540c\u3058\u30d5\u30a1\u30a4\u30eb\u3092\u6307\u3057\u3001\u540c\u3058\u6a29\u9650\u3068\u6240\u6709\u8005\u3092\u5171\u6709\u3057\u307e\u3059\u3002\u3055\u3089\u306b\u3001hard link \u306f filesystem \u3092\u307e\u305f\u3052\u305a\u3001\u3053\u308c\u304c\u5fc5\u8981\u306a\u3089 <code>symlink(2)<\/code> \u3092\u4f7f\u3046\u3088\u3046 man page \u306b\u660e\u8a18\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3064\u307e\u308a\u3001EXDEV \u304c\u51fa\u305f\u3068\u304d\u306e\u5224\u65ad\u306f\u3001\u300chard link \u524d\u63d0\u3092\u7dad\u6301\u3059\u3079\u304d\u6848\u4ef6\u300d\u306a\u306e\u304b\u3001\u300c\u53c2\u7167\u65b9\u6cd5\u3060\u3051\u5909\u3048\u308c\u3070\u8981\u4ef6\u3092\u6e80\u305f\u305b\u308b\u6848\u4ef6\u300d\u306a\u306e\u304b\u3092\u5206\u3051\u308b\u3068\u3053\u308d\u304b\u3089\u59cb\u307e\u308a\u307e\u3059\u3002\u3053\u3053\u3092\u66d6\u6627\u306b\u3059\u308b\u3068\u3001\u305d\u306e\u5834\u3067\u306f\u52d5\u3044\u3066\u3082\u3001\u5f8c\u304b\u3089\u6574\u5408\u6027\u3084\u904b\u7528\u8aac\u660e\u306b\u8ca0\u8377\u304c\u6b8b\u308a\u307e\u3059\u3002<\/p>\n<p>hard link \u3092\u7dad\u6301\u3059\u3079\u304d\u4ee3\u8868\u4f8b\u306f\u3001inode \u5171\u6709\u305d\u306e\u3082\u306e\u306b\u610f\u5473\u304c\u3042\u308b\u30b1\u30fc\u30b9\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u540c\u4e00\u5b9f\u4f53\u3067\u3042\u308b\u3053\u3068\u3092\u524d\u63d0\u306b\u30ea\u30f3\u30af\u6570\u3092\u7ba1\u7406\u3057\u3066\u3044\u308b\u51e6\u7406\u3001\u66f4\u65b0\u304c\u5373\u5ea7\u306b\u540c\u4e00\u5b9f\u4f53\u3078\u53cd\u6620\u3055\u308c\u308b\u3053\u3068\u3092\u524d\u63d0\u306b\u3057\u305f\u4ed5\u7d44\u307f\u3001\u5bb9\u91cf\u8a08\u7b97\u3084\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u8a2d\u8a08\u304c\u300c\u8907\u88fd\u3067\u306f\u306a\u304f\u540c\u4e00 inode \u306e\u5225\u540d\u300d\u3067\u3042\u308b\u3053\u3068\u3092\u524d\u63d0\u306b\u3057\u3066\u3044\u308b\u69cb\u6210\u3067\u306f\u3001copy \u3084 symlink \u3078\u5358\u7d14\u306b\u7f6e\u304d\u63db\u3048\u308b\u3068\u524d\u63d0\u304c\u5d29\u308c\u307e\u3059\u3002GNU Coreutils \u3067\u3082\u3001hard link \u306f\u65e2\u5b58\u30d5\u30a1\u30a4\u30eb\u3078\u306e\u5225\u540d\u3067\u3042\u308a\u3001\u540c\u3058 inode \u3092\u5171\u6709\u3059\u308b\u305f\u3081\u3001\u3069\u3061\u3089\u304c\u300c\u5143\u300d\u304b\u533a\u5225\u3067\u304d\u306a\u3044\u3068\u3044\u3046\u6027\u8cea\u304c\u8aac\u660e\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u6027\u8cea\u304c\u4ed5\u69d8\u306e\u4e00\u90e8\u306b\u306a\u3063\u3066\u3044\u308b\u306a\u3089\u3001hard link \u3092\u5916\u3059\u5224\u65ad\u306f\u614e\u91cd\u3067\u3042\u308b\u3079\u304d\u3067\u3059\u3002<\/p>\n<p>\u4e00\u65b9\u3067\u3001hard link \u304c\u5fc5\u9808\u3067\u306f\u306a\u3044\u30b1\u30fc\u30b9\u3082\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002\u5358\u306b\u300c\u5225\u306e\u5834\u6240\u304b\u3089\u540c\u3058\u5185\u5bb9\u3092\u53c2\u7167\u3057\u305f\u3044\u300d\u300c\u914d\u7f6e\u306e\u90fd\u5408\u3067\u8907\u6570\u306e\u540d\u524d\u304b\u3089\u30a2\u30af\u30bb\u30b9\u3057\u305f\u3044\u300d\u300c\u4e00\u6642\u7684\u306a\u4f5c\u696d\u5c0e\u7dda\u3092\u4f5c\u308a\u305f\u3044\u300d\u3068\u3044\u3063\u305f\u8981\u4ef6\u3067\u3042\u308c\u3070\u3001symlink \u3084 copy \u306e\u307b\u3046\u304c\u69cb\u6210\u306b\u5408\u3046\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3068\u304f\u306b\u3001filesystem \u5883\u754c\u3092\u307e\u305f\u3050\u5fc5\u8981\u304c\u3042\u308b\u69cb\u6210\u3067\u306f\u3001hard link \u3092\u6210\u7acb\u3055\u305b\u308b\u305f\u3081\u306b\u7121\u7406\u306b\u914d\u7f6e\u5909\u66f4\u3084\u6a29\u9650\u5909\u66f4\u3092\u52a0\u3048\u308b\u3088\u308a\u3001\u8981\u4ef6\u3092\u6e80\u305f\u3059\u5225\u65b9\u5f0f\u3078\u5bc4\u305b\u305f\u307b\u3046\u304c\u5f71\u97ff\u7bc4\u56f2\u3092\u6291\u3048\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002Linux \u306e <code>symlink(2)<\/code> \u306f\u3001\u65b0\u3057\u3044\u540d\u524d\u304c target \u3092\u6307\u3059 symbolic link \u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u304a\u308a\u3001hard link \u3068\u306f\u6027\u8cea\u304c\u7570\u306a\u308a\u307e\u3059\u304c\u3001cross-filesystem \u306e\u5236\u7d04\u56de\u907f\u3068\u3044\u3046\u610f\u5473\u3067\u306f\u6709\u52b9\u306a\u9078\u629e\u80a2\u3067\u3059\u3002<\/p>\n<hr>\n<h3>\u300chard link \u3092\u5916\u3057\u3066\u3088\u3044\u6761\u4ef6\u300d\u3092\u5148\u306b\u6574\u7406\u3057\u307e\u3059<\/h3>\n<p>\u5224\u65ad\u3092\u843d\u3061\u7740\u304b\u305b\u308b\u305f\u3081\u306b\u306f\u3001\u307e\u305a\u300chard link \u3092\u5916\u3057\u3066\u3088\u3044\u6761\u4ef6\u300d\u3092\u6574\u7406\u3059\u308b\u306e\u304c\u6709\u52b9\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u6b21\u306e\u3088\u3046\u306a\u6761\u4ef6\u304c\u305d\u308d\u3046\u306a\u3089\u3001hard link \u56fa\u5b9a\u3067\u8003\u3048\u7d9a\u3051\u308b\u5fc5\u8981\u306f\u8584\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u540c\u4e00 inode \u3067\u3042\u308b\u3053\u3068\u81ea\u4f53\u304c\u696d\u52d9\u8981\u4ef6\u3067\u306f\u306a\u3044<\/li>\n<li>\u30ea\u30f3\u30af\u5148\u306e\u66f4\u65b0\u304c\u5373\u6642\u306b\u540c\u4e00\u5b9f\u4f53\u3078\u53cd\u6620\u3055\u308c\u308b\u5fc5\u8981\u304c\u306a\u3044\u3001\u307e\u305f\u306f\u5225\u65b9\u5f0f\u3067\u62c5\u4fdd\u3067\u304d\u308b<\/li>\n<li>\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3001\u76e3\u67fb\u3001\u4e16\u4ee3\u7ba1\u7406\u3001\u5bb9\u91cf\u898b\u7a4d\u3082\u308a\u304c copy \u3084 symlink \u3078\u5207\u308a\u66ff\u308f\u3063\u3066\u3082\u7834\u7dbb\u3057\u306a\u3044<\/li>\n<li>\u904b\u7528\u624b\u9806\u3084\u969c\u5bb3\u5fa9\u65e7\u624b\u9806\u306e\u8aac\u660e\u304c\u3001hard link \u524d\u63d0\u3067\u306a\u304f\u3066\u3082\u6210\u7acb\u3059\u308b<\/li>\n<\/ul>\n<p>\u3053\u306e\u78ba\u8a8d\u306f\u3001\u6280\u8853\u8ad6\u3060\u3051\u3067\u306a\u304f\u3001\u6848\u4ef6\u306e\u8aac\u660e\u8cac\u4efb\u306b\u3082\u95a2\u308f\u308a\u307e\u3059\u3002\u73fe\u5834\u3067\u306f\u300c\u901a\u308c\u3070\u3088\u3044\u300d\u3067\u306f\u6e08\u307e\u306a\u3044\u3053\u3068\u304c\u591a\u304f\u3001\u5f8c\u7d9a\u306e\u4fdd\u5b88\u62c5\u5f53\u8005\u3084\u76e3\u67fb\u5bfe\u5fdc\u62c5\u5f53\u8005\u304c\u898b\u305f\u3068\u304d\u306b\u7406\u89e3\u3057\u3084\u3059\u3044\u69cb\u6210\u3067\u3042\u308b\u3053\u3068\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002hard link \u3092\u5916\u3057\u3066\u3082\u8981\u4ef6\u304c\u6e80\u305f\u305b\u308b\u306a\u3089\u3001\u305d\u306e\u5224\u65ad\u306f\u59a5\u5f53\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u305d\u3053\u3092\u78ba\u8a8d\u3057\u306a\u3044\u307e\u307e\u4e00\u5f8b\u306b copy \u3078\u5bc4\u305b\u308b\u3068\u3001\u300c\u306a\u305c\u5bb9\u91cf\u304c\u5897\u3048\u305f\u306e\u304b\u300d\u300c\u306a\u305c\u7247\u65b9\u306e\u66f4\u65b0\u304c\u53cd\u6620\u3055\u308c\u306a\u3044\u306e\u304b\u300d\u300c\u306a\u305c\u76e3\u67fb\u8cc7\u6599\u306e\u8aac\u660e\u304c\u5909\u308f\u3063\u305f\u306e\u304b\u300d\u3068\u3044\u3063\u305f\u5225\u306e\u8ad6\u70b9\u304c\u751f\u307e\u308c\u307e\u3059\u3002\u4fee\u5fa9\u65b9\u91dd\u306f\u3001\u6280\u8853\u7684\u6210\u7acb\u3060\u3051\u3067\u306a\u304f\u3001\u904b\u7528\u306e\u7d0d\u5f97\u611f\u307e\u3067\u542b\u3081\u3066\u6c7a\u3081\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<table style=\"border-collapse:collapse; width:100%; margin:16px 0;\">\n<tr>\n<th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u9078\u629e\u80a2<\/th>\n<th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u5411\u3044\u3066\u3044\u308b\u72b6\u6cc1<\/th>\n<th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u6ce8\u610f\u70b9<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\">hard link \u3092\u7dad\u6301\u3059\u308b<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">inode \u5171\u6709\u304c\u8981\u4ef6\u305d\u306e\u3082\u306e\u306b\u306a\u3063\u3066\u3044\u308b<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u540c\u4e00 mounted filesystem \u4e0a\u3078\u914d\u7f6e\u3092\u5bc4\u305b\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\">symbolic link \u306b\u5207\u308a\u66ff\u3048\u308b<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u53c2\u7167\u5c0e\u7dda\u304c\u4e3b\u76ee\u7684\u3067\u3001cross-filesystem \u3092\u907f\u3051\u3089\u308c\u306a\u3044<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u53c2\u7167\u5148\u306e\u89e3\u6c7a\u3084\u524a\u9664\u6642\u306e\u6271\u3044\u3001\u76e3\u67fb\u30fb\u914d\u5e03\u7269\u306e\u898b\u3048\u65b9\u304c\u5909\u308f\u308a\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\">copy \u306b\u5207\u308a\u66ff\u3048\u308b<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u72ec\u7acb\u3057\u305f\u8907\u88fd\u3068\u3057\u3066\u6271\u3063\u3066\u3088\u3044<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u66f4\u65b0\u540c\u671f\u3001\u5bb9\u91cf\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u8a2d\u8a08\u304c\u5909\u308f\u308b\u305f\u3081\u3001\u8981\u4ef6\u78ba\u8a8d\u304c\u5fc5\u8981\u3067\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u914d\u7f6e\u8a2d\u8a08\u3092\u898b\u76f4\u3059<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">hard link \u5fc5\u9808\u3060\u304c\u73fe\u884c\u69cb\u6210\u304c\u5883\u754c\u3092\u307e\u305f\u3044\u3067\u3044\u308b<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u6700\u5c0f\u5909\u66f4\u3067\u6e08\u3080\u304b\u3001\u4ed6\u30b7\u30b9\u30c6\u30e0\u3078\u306e\u6ce2\u53ca\u304c\u306a\u3044\u304b\u3092\u4e8b\u524d\u306b\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/table>\n<h3>\u300c\u6700\u5c0f\u5909\u66f4\u3067\u76f4\u3059\u6761\u4ef6\u300d\u306f\u3001\u69cb\u6210\u5909\u66f4\u306e\u5358\u7d14\u3055\u3067\u306f\u6c7a\u307e\u308a\u307e\u305b\u3093<\/h3>\n<p>\u73fe\u5834\u3067\u8ff7\u3044\u3084\u3059\u3044\u306e\u306f\u3001\u300c\u3044\u3061\u3070\u3093\u5c0f\u3055\u3044\u5909\u66f4\u306b\u898b\u3048\u308b\u3082\u306e\u300d\u304c\u3001\u5fc5\u305a\u3057\u3082\u6700\u5c0f\u5909\u66f4\u3067\u306f\u306a\u3044\u70b9\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u30b7\u30a7\u30eb\u30b9\u30af\u30ea\u30d7\u30c8\u306e <code>ln<\/code> \u3092 <code>cp<\/code> \u306b\u5909\u3048\u308b\u3060\u3051\u306a\u3089\u5dee\u5206\u306f\u5c0f\u3055\u304f\u898b\u3048\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u305d\u306e\u7d50\u679c\u3068\u3057\u3066\u5bb9\u91cf\u306e\u4f7f\u3044\u65b9\u3001\u66f4\u65b0\u53cd\u6620\u306e\u524d\u63d0\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u5bfe\u8c61\u3001\u76e3\u67fb\u306e\u8aac\u660e\u304c\u5909\u308f\u308b\u306a\u3089\u3001\u5b9f\u8cea\u7684\u306b\u306f\u5c0f\u3055\u304f\u3042\u308a\u307e\u305b\u3093\u3002\u9006\u306b\u3001\u914d\u7f6e\u3092\u540c\u4e00 mounted filesystem \u5074\u3078\u5bc4\u305b\u308b\u5909\u66f4\u306f\u4e00\u898b\u5927\u304d\u304f\u898b\u3048\u3066\u3082\u3001\u8981\u4ef6\u3068\u904b\u7528\u306e\u524d\u63d0\u3092\u4fdd\u3066\u308b\u306a\u3089\u3001\u9577\u671f\u7684\u306b\u306f\u3053\u3061\u3089\u306e\u307b\u3046\u304c\u5c0f\u3055\u3044\u5909\u66f4\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002EXDEV \u306e\u4fee\u5fa9\u3067\u306f\u3001\u30b3\u30fc\u30c9\u5dee\u5206\u306e\u5927\u304d\u3055\u3088\u308a\u300c\u524d\u63d0\u6761\u4ef6\u3092\u3069\u308c\u3060\u3051\u6e29\u5b58\u3067\u304d\u308b\u304b\u300d\u3092\u8ef8\u306b\u898b\u308b\u307b\u3046\u304c\u3001\u5f8c\u306e\u53ce\u675f\u304c\u5b89\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u3068\u304d\u6709\u52b9\u306a\u306e\u304c\u3001\u300c\u4f55\u3092\u5909\u3048\u305a\u306b\u6b8b\u3057\u305f\u3044\u304b\u300d\u3092\u5148\u306b\u56fa\u5b9a\u3059\u308b\u8003\u3048\u65b9\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u672c\u756a\u904b\u7528\u4e2d\u306e\u76e3\u67fb\u30ed\u30b0\u306e\u898b\u3048\u65b9\u306f\u5909\u3048\u305f\u304f\u306a\u3044\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u624b\u9806\u306f\u5909\u3048\u305f\u304f\u306a\u3044\u3001\u30ea\u30f3\u30af\u6570\u306b\u4f9d\u5b58\u3059\u308b\u51e6\u7406\u306f\u5909\u3048\u305f\u304f\u306a\u3044\u3001\u3068\u3044\u3063\u305f\u6761\u4ef6\u3067\u3059\u3002\u3053\u3046\u3057\u305f\u6761\u4ef6\u3092\u5148\u306b\u4e26\u3079\u308b\u3068\u3001copy \u304c\u4e0d\u5411\u304d\u306a\u306e\u304b\u3001symlink \u306a\u3089\u8a31\u5bb9\u3067\u304d\u308b\u306e\u304b\u3001\u3042\u308b\u3044\u306f\u914d\u7f6e\u8a2d\u8a08\u3092\u898b\u76f4\u3059\u3079\u304d\u306a\u306e\u304b\u304c\u898b\u3048\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u53cd\u5bfe\u306b\u3001\u300cEXDEV \u3092\u6d88\u3059\u3053\u3068\u300d\u3060\u3051\u3092\u76ee\u7684\u306b\u3057\u3066\u3057\u307e\u3046\u3068\u3001\u3042\u3068\u3067\u5225\u306e\u8ad6\u70b9\u304c\u5897\u3048\u307e\u3059\u3002\u969c\u5bb3\u5bfe\u5fdc\u306f\u3001\u305d\u306e\u5834\u306e\u901a\u904e\u3060\u3051\u3067\u306a\u304f\u3001\u5f8c\u7d9a\u306e\u904b\u7528\u307e\u3067\u898b\u636e\u3048\u3066\u6b6f\u6b62\u3081\u3092\u304b\u3051\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<hr>\n<h3>\u4e00\u822c\u8ad6\u3067\u6c7a\u3081\u306b\u304f\u3044\u6848\u4ef6\u3067\u306f\u3001\u76f8\u8ac7\u5224\u65ad\u306e\u307b\u3046\u304c\u65e9\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059<\/h3>\n<p>\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u30b3\u30f3\u30c6\u30ca\u3001\u672c\u756a\u30c7\u30fc\u30bf\u3001\u76e3\u67fb\u8981\u4ef6\u304c\u7d61\u3080\u3068\u3001\u4fee\u5fa9\u65b9\u91dd\u306f\u4e00\u822c\u8ad6\u3060\u3051\u3067\u306f\u6c7a\u3081\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002man page \u3084 GNU Coreutils \u306e\u8aac\u660e\u304b\u3089\u3001hard link \u304c cross-filesystem \u3092\u8d8a\u3048\u3089\u308c\u306a\u3044\u3053\u3068\u3001hard link \u3068 symlink \u306e\u6027\u8cea\u304c\u7570\u306a\u308b\u3053\u3068\u307e\u3067\u306f\u5206\u304b\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u300c\u3053\u306e\u6848\u4ef6\u3067\u306f\u3069\u3061\u3089\u3078\u5bc4\u305b\u308b\u306e\u304c\u5b89\u5168\u304b\u300d\u300c\u6700\u5c0f\u5909\u66f4\u306f\u3069\u306e\u9078\u629e\u304b\u300d\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u69cb\u6210\u3001\u5951\u7d04\u8981\u4ef6\u3001\u4fdd\u5b88\u4f53\u5236\u3001\u76e3\u67fb\u9805\u76ee\u307e\u3067\u542b\u3081\u3066\u5224\u65ad\u3057\u306a\u3044\u3068\u7d50\u8ad6\u304c\u3076\u308c\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u6280\u8853\u7684\u306a\u4e00\u822c\u8ad6\u306b\u306f\u9650\u754c\u304c\u3042\u308a\u3001\u500b\u5225\u6848\u4ef6\u3067\u306f\u69cb\u6210\u3068\u904b\u7528\u6587\u8108\u3092\u898b\u305f\u5224\u65ad\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<p>\u305d\u306e\u305f\u3081\u3001\u8aad\u307f\u53d6\u308a\u4e2d\u5fc3\u306e\u5207\u308a\u5206\u3051\u3067\u5883\u754c\u304c\u898b\u3048\u305f\u6642\u70b9\u3067\u3001\u7121\u7406\u306b\u305d\u306e\u5834\u3067\u69cb\u6210\u3092\u89e6\u308b\u3088\u308a\u3001<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u3054\u76f8\u8ac7\u3044\u305f\u3060\u304f\u307b\u3046\u304c\u73fe\u5b9f\u7684\u306a\u5834\u9762\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u914d\u4e0b\u3067 hard link \u524d\u63d0\u306e\u51e6\u7406\u304c\u52d5\u3044\u3066\u3044\u308b\u3001\u672c\u756a\u7cfb\u3068\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u7cfb\u3067\u898b\u3048\u308b mount \u304c\u7570\u306a\u308b\u3001\u30b3\u30f3\u30c6\u30ca\u5185\u306e\u56de\u907f\u7b56\u304c\u518d\u30c7\u30d7\u30ed\u30a4\u5f8c\u3082\u7dad\u6301\u3055\u308c\u308b\u304b\u8aad\u3081\u306a\u3044\u3001\u3068\u3044\u3063\u305f\u6848\u4ef6\u3067\u3059\u3002\u3053\u3046\u3057\u305f\u5834\u5408\u306f\u3001\u69cb\u6210\u3092\u8e0f\u307e\u3048\u3066\u300chard link \u3092\u7dad\u6301\u3059\u308b\u3079\u304d\u304b\u300d\u300c\u5916\u3057\u3066\u3088\u3044\u304b\u300d\u300c\u3069\u3053\u307e\u3067\u304c\u6700\u5c0f\u5909\u66f4\u304b\u300d\u3092\u6574\u7406\u3057\u305f\u307b\u3046\u304c\u3001\u793e\u5185\u8abf\u6574\u3082\u9032\u3081\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u3054\u76f8\u8ac7\u306f <a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0<\/a> \u307e\u305f\u306f 0120-838-831 \u304b\u3089\u53d7\u3051\u4ed8\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u7b2c4\u7ae0\u306e\u7d50\u8ad6\u306f\u3001EXDEV \u306e\u4fee\u5fa9\u306f\u300c\u4ee3\u66ff\u30b3\u30de\u30f3\u30c9\u3092\u9078\u3076\u554f\u984c\u300d\u3067\u306f\u306a\u304f\u3001\u300c\u8981\u4ef6\u3092\u58ca\u3055\u305a\u306b\u4f55\u3092\u6b8b\u3059\u304b\u3092\u6c7a\u3081\u308b\u554f\u984c\u300d\u3060\u3068\u3044\u3046\u70b9\u306b\u3042\u308a\u307e\u3059\u3002hard link \u3092\u5916\u3057\u3066\u3088\u3044\u6848\u4ef6\u306a\u3089\u3001symlink \u3084 copy \u306f\u6709\u529b\u306a\u9078\u629e\u80a2\u3067\u3059\u3002hard link \u304c\u5fc5\u8981\u306a\u6848\u4ef6\u306a\u3089\u3001\u540c\u4e00 mounted filesystem \u4e0a\u3078\u914d\u7f6e\u3092\u5bc4\u305b\u308b\u65b9\u5411\u3067\u8003\u3048\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5927\u5207\u306a\u306e\u306f\u3001\u6700\u5c0f\u5909\u66f4\u3092\u898b\u8aa4\u3089\u306a\u3044\u3053\u3068\u3067\u3059\u3002\u3053\u3053\u3092\u4e01\u5be7\u306b\u6574\u7406\u3067\u304d\u308b\u304b\u3069\u3046\u304b\u304c\u3001\u969c\u5bb3\u306e\u8edf\u7740\u9678\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\n<p>\u3000<\/p>\n<p> <a id=\"sec05\"><\/a> <\/p>\n<h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u7b2c5\u7ae0\uff1a\u672c\u756a\u3067\u5d29\u3055\u306a\u3044\u5b9f\u88c5\u2015\u2015mv\u30fbcp\u30fbsymlink \u306e\u4f7f\u3044\u5206\u3051\u3068\u5f71\u97ff\u7bc4\u56f2\u306e\u8003\u3048\u65b9<\/h2>\n<p>EXDEV (18) \u306e\u4fee\u5fa9\u3067\u3001\u73fe\u5834\u304c\u3044\u3061\u3070\u3093\u60a9\u307f\u3084\u3059\u3044\u306e\u306f\u300c\u4f55\u306b\u7f6e\u304d\u63db\u3048\u308c\u3070\u5b89\u5168\u304b\u300d\u3067\u3059\u3002\u3053\u3053\u3067\u91cd\u8981\u306a\u306e\u306f\u3001<code>ln<\/code> \u304c\u5931\u6557\u3057\u305f\u304b\u3089\u3068\u3044\u3063\u3066\u3001<code>mv<\/code>\u3001<code>cp<\/code>\u3001symbolic link \u306e\u3069\u308c\u304b\u3078\u6a5f\u68b0\u7684\u306b\u7f6e\u304d\u63db\u3048\u308c\u3070\u3088\u3044\u308f\u3051\u3067\u306f\u306a\u3044\u3001\u3068\u3044\u3046\u70b9\u3067\u3059\u3002GNU Coreutils \u306e\u8aac\u660e\u3067\u306f\u3001hard link \u306f file system boundary \u3092\u8d8a\u3048\u3089\u308c\u307e\u305b\u3093\u3002\u4e00\u65b9\u3001symbolic link \u306f\u540d\u524d\u3067\u53c2\u7167\u5148\u3092\u6307\u3059\u5225\u306e\u4ed5\u7d44\u307f\u3067\u3001hard link \u3068\u540c\u3058\u6319\u52d5\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u3002\u3064\u307e\u308a\u3001EXDEV \u306e\u89e3\u6d88\u3068\u8981\u4ef6\u7dad\u6301\u306f\u5225\u554f\u984c\u3067\u3059\u3002\u5b9f\u88c5\u306e\u7f6e\u304d\u63db\u3048\u306f\u3001\u300c\u30a8\u30e9\u30fc\u3092\u6d88\u3059\u3053\u3068\u300d\u3067\u306f\u306a\u304f\u3001\u300c\u4f55\u304c\u5909\u308f\u308b\u3068\u56f0\u308b\u306e\u304b\u300d\u3092\u5148\u306b\u6574\u7406\u3057\u3066\u9078\u3076\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u307e\u305a <code>mv<\/code> \u3067\u3059\u3002<code>mv<\/code> \u306f\u901a\u5e38\u3001\u540c\u3058 file system \u5185\u3067\u3042\u308c\u3070 rename \u306b\u8fd1\u3044\u5f62\u3067\u52d5\u304d\u307e\u3059\u304c\u3001GNU Coreutils \u306e\u8aac\u660e\u3067\u306f\u3001\u5b9b\u5148\u304c\u5225 file system \u3067 rename \u3067\u304d\u306a\u3044\u5834\u5408\u3001<code>cp -a<\/code> \u76f8\u5f53\u3067\u30b3\u30d4\u30fc\u3057\u3066\u304b\u3089\u3001\u6210\u529f\u6642\u306b\u5143\u3092\u524a\u9664\u3059\u308b\u52d5\u4f5c\u3078\u5207\u308a\u66ff\u308f\u308a\u307e\u3059\u3002Linux \u306e <code>rename(2)<\/code> \u3067\u3082\u3001rename \u306f\u540d\u524d\u306e\u4ed8\u3051\u66ff\u3048\u3067\u3042\u308a\u3001\u65e2\u5b58\u306e hard link \u306b\u306f\u5f71\u97ff\u3057\u306a\u3044\u4e00\u65b9\u3001\u6210\u529f\u6761\u4ef6\u306b\u306f\u5236\u7d04\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001<code>ln<\/code> \u3092 <code>mv<\/code> \u306b\u7f6e\u304d\u63db\u3048\u308b\u3068\u3001\u4e00\u898b\u300c\u79fb\u52d5\u3067\u304d\u305f\u300d\u3088\u3046\u306b\u898b\u3048\u3066\u3082\u3001\u5b9f\u4f53\u3068\u3057\u3066\u306f rename \u3067\u306f\u306a\u304f copy\uff0bdelete \u306b\u306a\u3063\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u672c\u756a\u3067\u306f\u3053\u306e\u5dee\u304c\u91cd\u8981\u3067\u3059\u3002\u5bb9\u91cf\u4f7f\u7528\u91cf\u3001\u51e6\u7406\u6642\u9593\u3001\u5931\u6557\u6642\u306e\u4e2d\u9014\u72b6\u614b\u3001\u76e3\u67fb\u4e0a\u306e\u8aac\u660e\u304c\u5909\u308f\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n<p>\u6b21\u306b <code>cp<\/code> \u3067\u3059\u3002<code>cp<\/code> \u306f\u8907\u88fd\u3092\u4f5c\u308b\u305f\u3081\u3001hard link \u306e\u3088\u3046\u306b\u540c\u3058 inode \u3092\u5171\u6709\u3057\u307e\u305b\u3093\u3002GNU Coreutils \u306e\u8aac\u660e\u3067\u306f\u3001<code>cp -d<\/code> \u3084\u305d\u308c\u3092\u542b\u3080 <code>cp -a<\/code> \u306f source \u5074\u306b\u8907\u6570\u306e hard link \u304c\u3042\u308b\u5834\u5408\u306e\u95a2\u4fc2\u3092\u30b3\u30d4\u30fc\u5148\u3067\u3082\u4fdd\u3068\u3046\u3068\u3057\u307e\u3059\u304c\u3001\u305d\u308c\u306f\u300c\u30b3\u30d4\u30fc\u5f8c\u306e\u95a2\u4fc2\u300d\u3092\u4fdd\u3064\u8a71\u3067\u3042\u308a\u3001\u5143\u30d5\u30a1\u30a4\u30eb\u3068\u30b3\u30d4\u30fc\u5148\u304c\u540c\u4e00\u5b9f\u4f53\u306b\u306a\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3064\u307e\u308a\u3001\u66f4\u65b0\u306e\u5373\u6642\u53cd\u6620\u3001\u30ea\u30f3\u30af\u6570\u3001\u5bb9\u91cf\u8a08\u7b97\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306e\u898b\u3048\u65b9\u304c\u5909\u308f\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u5358\u7d14\u306a\u914d\u5e03\u7269\u3084\u4e00\u6642\u30d5\u30a1\u30a4\u30eb\u306a\u3089\u554f\u984c\u306b\u306a\u3089\u306a\u3044\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u672c\u756a\u30c7\u30fc\u30bf\u3084\u904b\u7528\u30b9\u30af\u30ea\u30d7\u30c8\u3067\u300c\u540c\u3058\u5b9f\u4f53\u3067\u3042\u308b\u3053\u3068\u300d\u306b\u610f\u5473\u304c\u3042\u308b\u306a\u3089\u3001<code>cp<\/code> \u306f\u614e\u91cd\u306b\u6271\u3046\u3079\u304d\u3067\u3059\u3002<\/p>\n<p>symbolic link \u306f\u3001cross-filesystem \u306e\u5236\u7d04\u3092\u907f\u3051\u3084\u3059\u3044\u4e00\u65b9\u3067\u3001\u53c2\u7167\u306e\u524d\u63d0\u304c\u5909\u308f\u308a\u307e\u3059\u3002GNU Coreutils \u306e\u8aac\u660e\u3067\u306f\u3001symbolic link \u306f\u30d5\u30a1\u30a4\u30eb\u305d\u306e\u3082\u306e\u3067\u306f\u306a\u304f\u3001\u540d\u524d\u3067\u5225\u306e\u5bfe\u8c61\u3092\u6307\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u53c2\u7167\u5148\u306e\u89e3\u6c7a\u53ef\u5426\u3001\u76f8\u5bfe\u30d1\u30b9\u304b\u7d76\u5bfe\u30d1\u30b9\u304b\u3001\u524a\u9664\u3084\u914d\u5e03\u6642\u306e\u898b\u3048\u65b9\u3001\u76e3\u67fb\u8cc7\u6599\u3067\u306e\u8aac\u660e\u304c hard link \u3068\u306f\u7570\u306a\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u53c2\u7167\u5148\u304c\u79fb\u52d5\u3057\u305f\u5834\u5408\u3084\u3001\u30de\u30a6\u30f3\u30c8\u6761\u4ef6\u304c\u5909\u308f\u3063\u305f\u5834\u5408\u3001hard link \u3067\u306f\u8d77\u304d\u306a\u304b\u3063\u305f\u554f\u984c\u304c symlink \u3067\u306f\u8d77\u3053\u308a\u5f97\u307e\u3059\u3002\u53cd\u5bfe\u306b\u3001\u8981\u4ef6\u304c\u300c\u5225\u540d\u3067\u305f\u3069\u308c\u308c\u3070\u3088\u3044\u300d\u3067\u3042\u308c\u3070\u3001symlink \u306e\u307b\u3046\u304c\u69cb\u6210\u306b\u81ea\u7136\u306a\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u5927\u5207\u306a\u306e\u306f\u3001hard link \u306e\u4ee3\u7528\u54c1\u3068\u3057\u3066\u898b\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u5225\u306e\u4ed5\u7d44\u307f\u3068\u3057\u3066\u8a55\u4fa1\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n<hr>\n<h3>\u672c\u756a\u3067\u898b\u308b\u3079\u304d\u5f71\u97ff\u7bc4\u56f2<\/h3>\n<p>\u5b9f\u88c5\u306e\u7f6e\u304d\u63db\u3048\u3092\u5224\u65ad\u3059\u308b\u969b\u306f\u3001\u5c11\u306a\u304f\u3068\u3082\u56db\u3064\u306e\u89b3\u70b9\u3092\u898b\u3066\u304a\u304f\u3068\u6574\u7406\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u7b2c\u4e00\u306b\u3001\u66f4\u65b0\u53cd\u6620\u3067\u3059\u3002hard link \u306f\u540c\u3058 inode \u3092\u5171\u6709\u3059\u308b\u305f\u3081\u3001\u3069\u3061\u3089\u304b\u3089\u898b\u3066\u3082\u540c\u3058\u5b9f\u4f53\u3067\u3059\u304c\u3001copy \u306f\u5225\u7269\u306b\u306a\u308a\u3001symlink \u306f\u53c2\u7167\u5148\u4f9d\u5b58\u306b\u306a\u308a\u307e\u3059\u3002\u7b2c\u4e8c\u306b\u3001\u5bb9\u91cf\u3068\u6027\u80fd\u3067\u3059\u3002<code>mv<\/code> \u304c\u540c\u4e00 file system \u5185\u306a\u3089\u8efd\u304f\u6e08\u3080\u4e00\u65b9\u3001\u5225 file system \u3067\u306f copy \u76f8\u5f53\u306b\u306a\u308a\u5f97\u307e\u3059\u3002\u7b2c\u4e09\u306b\u3001\u969c\u5bb3\u6642\u306e\u623b\u3057\u3084\u3059\u3055\u3067\u3059\u3002copy\uff0bdelete \u578b\u306e\u5909\u66f4\u306f\u3001\u4e2d\u65ad\u6642\u3084\u90e8\u5206\u5931\u6557\u6642\u306e\u6271\u3044\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u7b2c\u56db\u306b\u3001\u76e3\u67fb\u3084\u4fdd\u5b88\u306e\u8aac\u660e\u53ef\u80fd\u6027\u3067\u3059\u3002\u4e00\u822c\u8ad6\u3068\u3057\u3066\u901a\u308b\u65b9\u6cd5\u3067\u3082\u3001\u305d\u306e\u6848\u4ef6\u306e\u5951\u7d04\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u624b\u9806\u3001\u904b\u7528\u5f15\u304d\u7d99\u304e\u3067\u8aac\u660e\u3057\u3065\u3089\u3051\u308c\u3070\u3001\u5b9f\u52d9\u4e0a\u306f\u3088\u3044\u9078\u629e\u3068\u306f\u8a00\u3048\u307e\u305b\u3093\u3002<\/p>\n<table style=\"border-collapse:collapse; width:100%; margin:16px 0;\">\n<tr>\n<th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u65b9\u5f0f<\/th>\n<th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u5411\u304f\u5834\u9762<\/th>\n<th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u672c\u756a\u3067\u306e\u6ce8\u610f\u70b9<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\">mv<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u540c\u4e00 file system \u5185\u3067\u914d\u7f6e\u3092\u6574\u7406\u3057\u305f\u3044\u5834\u5408<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u5225 file system \u3067\u306f rename \u3067\u306f\u306a\u304f copy\uff0bdelete \u306b\u5207\u308a\u66ff\u308f\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\">cp<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u72ec\u7acb\u3057\u305f\u8907\u88fd\u3068\u3057\u3066\u6271\u3063\u3066\u3088\u3044\u5834\u5408<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u5143\u3068\u5148\u306f\u540c\u4e00\u5b9f\u4f53\u306b\u306a\u3089\u305a\u3001\u66f4\u65b0\u53cd\u6620\u3084\u5bb9\u91cf\u524d\u63d0\u304c\u5909\u308f\u308a\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\">symbolic link<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">cross-filesystem \u3067\u53c2\u7167\u5c0e\u7dda\u3092\u4f5c\u308a\u305f\u3044\u5834\u5408<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u53c2\u7167\u5148\u89e3\u6c7a\u3001\u76f8\u5bfe\u30fb\u7d76\u5bfe\u30d1\u30b9\u3001\u524a\u9664\u6642\u306e\u6271\u3044\u304c hard link \u3068\u7570\u306a\u308a\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/table>\n<p>\u3053\u306e\u7ae0\u3067\u62bc\u3055\u3048\u3066\u304a\u304d\u305f\u3044\u7d50\u8ad6\u306f\u3001EXDEV \u306e\u4fee\u5fa9\u306f\u30b3\u30de\u30f3\u30c9\u7f6e\u63db\u306e\u8a71\u3067\u306f\u306a\u304f\u3001\u5f71\u97ff\u7bc4\u56f2\u306e\u8a2d\u8a08\u306e\u8a71\u3060\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u7279\u306b\u3001\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u30b3\u30f3\u30c6\u30ca\u3001\u672c\u756a\u30c7\u30fc\u30bf\u3001\u76e3\u67fb\u8981\u4ef6\u304c\u7d61\u3080\u6848\u4ef6\u3067\u306f\u3001\u300c\u3044\u3061\u3070\u3093\u7c21\u5358\u306b\u898b\u3048\u308b\u7f6e\u304d\u63db\u3048\u300d\u304c\u6700\u5c0f\u5909\u66f4\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u4e00\u822c\u8ad6\u3067\u5019\u88dc\u3092\u7d5e\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u3059\u304c\u3001\u3069\u308c\u304c\u5b89\u5168\u304b\u306f\u500b\u5225\u69cb\u6210\u3068\u904b\u7528\u524d\u63d0\u3067\u5909\u308f\u308a\u307e\u3059\u3002\u5224\u65ad\u306b\u8ff7\u3046\u5834\u5408\u306f\u3001\u8aad\u307f\u53d6\u308a\u7d50\u679c\u3092\u305d\u308d\u3048\u305f\u3046\u3048\u3067\u3001<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u3054\u76f8\u8ac7\u3044\u305f\u3060\u304f\u307b\u3046\u304c\u3001\u7d50\u679c\u3068\u3057\u3066\u88ab\u5bb3\u6700\u5c0f\u5316\u3068\u53ce\u675f\u306e\u65e9\u3055\u306b\u3064\u306a\u304c\u308a\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u3054\u76f8\u8ac7\u306f <a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0<\/a> \u307e\u305f\u306f 0120-838-831 \u3067\u627f\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3000<\/p>\n<p> <a id=\"sec06\"><\/a> <\/p>\n<h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u7b2c6\u7ae0\uff1a\u8a3a\u65ad\u304b\u3089\u518d\u767a\u9632\u6b62\u3078\u2015\u2015EXDEV \u3092\u4e00\u6642\u5bfe\u5fdc\u3067\u7d42\u308f\u3089\u305b\u306a\u3044\u8a2d\u8a08\u3068\u904b\u7528<\/h2>\n<p>EXDEV (18) \u3078\u306e\u5bfe\u5fdc\u3067\u6700\u5f8c\u306b\u5927\u5207\u306b\u306a\u308b\u306e\u306f\u3001\u300c\u4eca\u56de\u306f\u901a\u3063\u305f\u300d\u3067\u7d42\u308f\u3089\u305b\u306a\u3044\u3053\u3068\u3067\u3059\u3002Linux \u306e <code>link(2)<\/code> \u304c\u793a\u3057\u3066\u3044\u308b\u3088\u3046\u306b\u3001EXDEV \u306f oldpath \u3068 newpath \u304c\u540c\u3058 mounted filesystem \u4e0a\u306b\u306a\u3044\u3068\u304d\u306e\u30a8\u30e9\u30fc\u3067\u3059\u3002\u3057\u304b\u3082 Linux \u3067\u306f\u3001\u540c\u3058 filesystem \u304c\u8907\u6570\u7b87\u6240\u306b mount \u3055\u308c\u3066\u3044\u3066\u3082\u3001\u7570\u306a\u308b mount \u9593\u306e hard link \u306f\u52d5\u4f5c\u3057\u307e\u305b\u3093\u3002\u3064\u307e\u308a\u3001\u3053\u306e\u969c\u5bb3\u306f\u5358\u767a\u306e\u30b3\u30de\u30f3\u30c9\u30df\u30b9\u3068\u3044\u3046\u3088\u308a\u3001\u30d1\u30b9\u8a2d\u8a08\u3001mount \u8a2d\u8a08\u3001\u5b9f\u884c\u74b0\u5883\u8a2d\u8a08\u306e\u3069\u3053\u304b\u306b\u300c\u524d\u63d0\u306e\u305a\u308c\u300d\u304c\u6b8b\u3063\u3066\u3044\u308b\u30b5\u30a4\u30f3\u3067\u3059\u3002\u5fdc\u6025\u7684\u306b\u5225\u65b9\u5f0f\u3078\u5bc4\u305b\u3066\u75c7\u72b6\u304c\u9759\u304b\u306b\u306a\u3063\u3066\u3082\u3001\u8a2d\u8a08\u4e0a\u306e\u524d\u63d0\u304c\u672a\u6574\u7406\u306e\u307e\u307e\u3060\u3068\u3001\u30c7\u30d7\u30ed\u30a4\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3001\u969c\u5bb3\u5fa9\u65e7\u3001\u76e3\u67fb\u5bfe\u5fdc\u306e\u3069\u3053\u304b\u3067\u518d\u3073\u8868\u9762\u5316\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002 ([man7.org](https:\/\/man7.org\/linux\/man-pages\/man2\/link.2.html?utm_source=chatgpt.com))<\/p>\n<p>\u518d\u767a\u9632\u6b62\u306e\u7b2c\u4e00\u6b69\u306f\u3001\u300c\u3053\u306e\u51e6\u7406\u304c\u672c\u5f53\u306b hard link \u3092\u5fc5\u8981\u3068\u3057\u3066\u3044\u308b\u306e\u304b\u300d\u3092\u4ed5\u69d8\u3068\u3057\u3066\u660e\u6587\u5316\u3059\u308b\u3053\u3068\u3067\u3059\u3002hard link \u306f\u5358\u306a\u308b\u8fd1\u9053\u3067\u306f\u306a\u304f\u3001\u540c\u3058 inode \u3092\u5171\u6709\u3059\u308b\u5225\u540d\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u66f4\u65b0\u53cd\u6620\u3001\u30ea\u30f3\u30af\u6570\u3001\u5bb9\u91cf\u306e\u898b\u3048\u65b9\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u6642\u306e\u6271\u3044\u307e\u3067\u542b\u3081\u3066\u610f\u5473\u3092\u6301\u3061\u307e\u3059\u3002GNU Coreutils \u3067\u3082\u3001hard link \u306f\u65e2\u5b58\u30d5\u30a1\u30a4\u30eb\u3078\u306e\u5225\u540d\u3067\u3042\u308a\u3001symbolic link \u306f\u540d\u524d\u3067\u53c2\u7167\u5148\u3092\u6307\u3059\u5225\u306e\u4ed5\u7d44\u307f\u3060\u3068\u8aac\u660e\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3082\u3057\u8981\u4ef6\u304c\u300c\u540c\u3058\u5185\u5bb9\u306b\u5230\u9054\u3067\u304d\u308c\u3070\u3088\u3044\u300d\u3067\u3042\u308c\u3070\u3001hard link \u56fa\u5b9a\u306e\u8a2d\u8a08\u306f\u5c06\u6765\u306e\u5236\u7d04\u306b\u306a\u308a\u5f97\u307e\u3059\u3002\u9006\u306b\u3001\u300c\u540c\u3058\u5b9f\u4f53\u3067\u3042\u308b\u3053\u3068\u300d\u81ea\u4f53\u304c\u4ed5\u69d8\u306a\u3089\u3001\u305d\u306e\u4ed5\u69d8\u306b\u5408\u3046\u914d\u7f6e\u8a2d\u8a08\u3078\u623b\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u3092\u6587\u7ae0\u3067\u6b8b\u3057\u3066\u304a\u304f\u3068\u3001\u62c5\u5f53\u8005\u304c\u5909\u308f\u3063\u3066\u3082\u5224\u65ad\u304c\u3076\u308c\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002 ([gnu.org](https:\/\/www.gnu.org\/s\/coreutils\/manual\/html_node\/ln-invocation.html?utm_source=chatgpt.com))<\/p>\n<hr>\n<h3>\u518d\u767a\u9632\u6b62\u3067\u6574\u7406\u3057\u305f\u3044\u89b3\u70b9<\/h3>\n<p>\u518d\u767a\u3092\u9632\u3050\u306b\u306f\u3001\u5c11\u306a\u304f\u3068\u3082\u6b21\u306e\u89b3\u70b9\u3092\u8a2d\u8a08\u3068\u904b\u7528\u306e\u4e21\u65b9\u3067\u63c3\u3048\u3066\u304a\u304f\u3068\u52b9\u679c\u7684\u3067\u3059\u3002<\/p>\n<ul>\n<li>hard link \u304c\u5fc5\u8981\u306a\u7406\u7531\u3092\u3001\u4ed5\u69d8\u30fb\u904b\u7528\u624b\u9806\u30fb\u4fdd\u5b88\u30e1\u30e2\u306b\u660e\u8a18\u3059\u308b<\/li>\n<li>\u5143\u30d5\u30a1\u30a4\u30eb\u3068\u30ea\u30f3\u30af\u4f5c\u6210\u5148\u304c\u3001\u540c\u4e00 mounted filesystem \u4e0a\u306b\u3042\u308b\u524d\u63d0\u3092\u69cb\u6210\u56f3\u306b\u843d\u3068\u3059<\/li>\n<li>bind mount\u3001\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u30b3\u30f3\u30c6\u30ca\u3001overlayfs \u3092\u4f7f\u3046\u5834\u5408\u306f\u3001\u3069\u306e\u5c64\u3067\u898b\u305f mount \u60c5\u5831\u304b\u3092\u6b8b\u3059<\/li>\n<li>copy \u3084 symbolic link \u3078\u5207\u308a\u66ff\u3048\u305f\u5834\u5408\u306e\u5bb9\u91cf\u3001\u540c\u671f\u3001\u76e3\u67fb\u3001\u5fa9\u65e7\u624b\u9806\u306e\u5dee\u5206\u3092\u6574\u7406\u3059\u308b<\/li>\n<li>\u30c7\u30d7\u30ed\u30a4\u3084\u66f4\u6539\u6642\u306b mount \u69cb\u6210\u304c\u5909\u308f\u3063\u3066\u3082\u3001\u524d\u63d0\u304c\u5d29\u308c\u306a\u3044\u304b\u3092\u78ba\u8a8d\u9805\u76ee\u306b\u5165\u308c\u308b<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u306f\u3069\u308c\u3082\u6d3e\u624b\u306a\u5bfe\u7b56\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u5b9f\u52d9\u3067\u306f\u975e\u5e38\u306b\u52b9\u304d\u307e\u3059\u3002EXDEV \u306e\u3084\u3063\u304b\u3044\u306a\u70b9\u306f\u3001\u969c\u5bb3\u304c\u8d77\u304d\u305f\u77ac\u9593\u3060\u3051\u898b\u3066\u3044\u308b\u3068\u300c\u30b3\u30de\u30f3\u30c9\u3092\u5909\u3048\u308c\u3070\u6e08\u3080\u300d\u3068\u601d\u3044\u3084\u3059\u3044\u3053\u3068\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u672c\u5f53\u306b\u5fc5\u8981\u306a\u306e\u306f\u3001\u306a\u305c\u305d\u306e\u69cb\u6210\u3067 hard link \u3092\u4f7f\u3063\u3066\u3044\u305f\u306e\u304b\u3001\u5c06\u6765\u3082\u540c\u3058\u524d\u63d0\u304c\u7dad\u6301\u3055\u308c\u308b\u306e\u304b\u3001\u3068\u3044\u3046\u554f\u3044\u3078\u306e\u7b54\u3048\u3067\u3059\u3002\u3053\u3053\u304c\u3042\u3044\u307e\u3044\u306a\u307e\u307e\u3060\u3068\u3001\u30b5\u30fc\u30d0\u30fc\u66f4\u6539\u3001\u30b3\u30f3\u30c6\u30ca\u5316\u3001\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u7d71\u5408\u3001\u76e3\u67fb\u5bfe\u5fdc\u306e\u305f\u3073\u306b\u540c\u3058\u8ad6\u70b9\u304c\u518d\u71c3\u3057\u307e\u3059\u3002\u969c\u5bb3\u5bfe\u5fdc\u3092\u305d\u306e\u5834\u306e\u6291\u3048\u8fbc\u307f\u3067\u7d42\u308f\u3089\u305b\u305a\u3001\u8a2d\u8a08\u3068\u904b\u7528\u306b\u5f15\u304d\u623b\u3057\u3066\u6574\u7406\u3059\u308b\u3053\u3068\u304c\u3001\u9577\u671f\u7684\u306a\u53ce\u675f\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002 ([man7.org](https:\/\/man7.org\/linux\/man-pages\/man2\/link.2.html?utm_source=chatgpt.com))<\/p>\n<table style=\"border-collapse:collapse; width:100%; margin:16px 0;\">\n<tr>\n<th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u898b\u76f4\u3057\u5bfe\u8c61<\/th>\n<th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u78ba\u8a8d\u3057\u305f\u3044\u5185\u5bb9<\/th>\n<th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u898b\u843d\u3068\u3057\u305f\u5834\u5408\u306e\u5f71\u97ff<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u4ed5\u69d8<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">hard link \u5fc5\u9808\u304b\u3001\u5225\u65b9\u5f0f\u3067\u3082\u3088\u3044\u304b<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u4ee3\u66ff\u7b56\u3092\u5165\u308c\u3066\u3082\u5f8c\u7d9a\u51e6\u7406\u3067\u524d\u63d0\u304c\u5d29\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u69cb\u6210<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u5143\u3068\u5148\u304c\u540c\u4e00 mounted filesystem \u3068\u3057\u3066\u7dad\u6301\u3055\u308c\u308b\u304b<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u66f4\u6539\u3084\u30c7\u30d7\u30ed\u30a4\u5f8c\u306b\u518d\u767a\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002 ([man7.org](https:\/\/man7.org\/linux\/man-pages\/man2\/link.2.html?utm_source=chatgpt.com))<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u904b\u7528<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3001\u76e3\u67fb\u3001\u5fa9\u65e7\u624b\u9806\u304c\u73fe\u884c\u65b9\u5f0f\u306b\u5408\u3063\u3066\u3044\u308b\u304b<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u969c\u5bb3\u6642\u306e\u8aac\u660e\u3084\u5fa9\u65e7\u6642\u9593\u306b\u5dee\u304c\u51fa\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u5b9f\u884c\u74b0\u5883<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u30b3\u30f3\u30c6\u30ca\u5185\u3068\u30db\u30b9\u30c8\u5074\u3067 mount \u60c5\u5831\u304c\u4e00\u81f4\u3057\u3066\u3044\u308b\u304b<\/td>\n<td style=\"border:1px solid #cccccc; padding:8px;\">\u74b0\u5883\u5dee\u5206\u306b\u3088\u308a\u3001\u672c\u756a\u3060\u3051\u518d\u767a\u3059\u308b\u304a\u305d\u308c\u304c\u3042\u308a\u307e\u3059\u3002 ([man7.org](https:\/\/man7.org\/linux\/man-pages\/man7\/mount_namespaces.7.html?utm_source=chatgpt.com))<\/td>\n<\/tr>\n<\/table>\n<h3>\u4e00\u822c\u8ad6\u3067\u6b62\u307e\u308b\u3068\u3001\u500b\u5225\u6848\u4ef6\u3067\u306f\u5224\u65ad\u3092\u8aa4\u308a\u3084\u3059\u304f\u306a\u308a\u307e\u3059<\/h3>\n<p>\u3053\u3053\u307e\u3067\u898b\u3066\u304d\u305f\u3088\u3046\u306b\u3001EXDEV \u306e\u4e00\u822c\u8ad6\u306f\u6bd4\u8f03\u7684\u306f\u3063\u304d\u308a\u3057\u3066\u3044\u307e\u3059\u3002hard link \u306f cross-filesystem \u3092\u8d8a\u3048\u3089\u308c\u305a\u3001mount \u5883\u754c\u3092\u307e\u305f\u3050\u3068\u6210\u7acb\u3057\u307e\u305b\u3093\u3002symbolic link \u306f\u5225\u306e\u4ed5\u7d44\u307f\u3067\u3042\u308a\u3001<code>mv<\/code> \u306f\u5225 filesystem \u3067\u306f copy\uff0bdelete \u76f8\u5f53\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u307e\u3067\u306f\u6587\u732e\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u5b9f\u969b\u306e\u6848\u4ef6\u3067\u96e3\u3057\u3044\u306e\u306f\u3001\u305d\u306e\u5148\u3067\u3059\u3002\u3069\u306e\u65b9\u5f0f\u306a\u3089\u5951\u7d04\u6761\u4ef6\u3001\u76e3\u67fb\u8981\u4ef6\u3001\u672c\u756a\u904b\u7528\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3001\u6027\u80fd\u3001\u5c06\u6765\u306e\u66f4\u6539\u306b\u8010\u3048\u3089\u308c\u308b\u306e\u304b\u306f\u3001\u4e00\u822c\u8ad6\u3060\u3051\u3067\u306f\u6c7a\u3081\u304d\u308c\u307e\u305b\u3093\u3002\u3064\u307e\u308a\u3001\u77e5\u8b58\u3060\u3051\u3067\u306f\u8db3\u308a\u305a\u3001\u69cb\u6210\u3068\u904b\u7528\u306e\u6587\u8108\u3092\u5408\u308f\u305b\u3066\u8a3a\u65ad\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 ([gnu.org](https:\/\/www.gnu.org\/s\/coreutils\/manual\/html_node\/mv-invocation.html?utm_source=chatgpt.com))<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u914d\u4e0b\u3067\u8907\u6570\u30b7\u30b9\u30c6\u30e0\u304c\u540c\u3058\u5b9f\u4f53\u3092\u524d\u63d0\u306b\u3057\u3066\u3044\u308b\u5834\u5408\u3001copy \u3078\u306e\u5909\u66f4\u306f\u898b\u305f\u76ee\u3088\u308a\u5927\u304d\u306a\u5f71\u97ff\u3092\u6301\u3061\u307e\u3059\u3002\u30b3\u30f3\u30c6\u30ca\u5185\u3067\u306f symlink \u3067\u843d\u3061\u7740\u3044\u3066\u3082\u3001\u30db\u30b9\u30c8\u5074\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3084\u76e3\u67fb\u304c\u305d\u306e\u524d\u63d0\u3092\u6301\u3063\u3066\u3044\u306a\u3044\u306a\u3089\u3001\u5f8c\u7d9a\u3067\u5225\u306e\u8ad6\u70b9\u304c\u5897\u3048\u307e\u3059\u3002\u672c\u756a\u30c7\u30fc\u30bf\u3067\u5bb9\u91cf\u898b\u7a4d\u3082\u308a\u304c\u53b3\u3057\u3044\u6848\u4ef6\u3067\u306f\u3001rename \u3060\u3068\u601d\u3063\u3066\u3044\u305f\u51e6\u7406\u304c\u5b9f\u969b\u306b\u306f copy\uff0bdelete \u306b\u306a\u3063\u3066\u3044\u305f\u3001\u3068\u3044\u3046\u5dee\u304c\u696d\u52d9\u4e0a\u306e\u8ca0\u8377\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u3046\u3057\u305f\u300c\u4e00\u822c\u8ad6\u306e\u5148\u300d\u306b\u3042\u308b\u5224\u65ad\u306f\u3001\u5b9f\u6848\u4ef6\u306e\u69cb\u6210\u56f3\u3001\u30ed\u30b0\u3001\u904b\u7528\u30d5\u30ed\u30fc\u3001\u5909\u66f4\u5236\u7d04\u3092\u898b\u306a\u304c\u3089\u3067\u306a\u3044\u3068\u7cbe\u5ea6\u304c\u4e0a\u304c\u308a\u307e\u305b\u3093\u3002<\/p>\n<hr>\n<h3>\u4f9d\u983c\u5224\u65ad\u306e\u76ee\u5b89<\/h3>\n<p>\u6b21\u306e\u3044\u305a\u308c\u304b\u306b\u5f53\u3066\u306f\u307e\u308b\u5834\u5408\u306f\u3001\u305d\u306e\u5834\u3067\u7121\u7406\u306b\u69cb\u6210\u5909\u66f4\u3092\u9032\u3081\u308b\u3088\u308a\u3001\u5c02\u9580\u5bb6\u3078\u306e\u76f8\u8ac7\u3092\u3054\u691c\u8a0e\u3044\u305f\u3060\u304f\u307b\u3046\u304c\u73fe\u5b9f\u7684\u3067\u3059\u3002<\/p>\n<ul>\n<li>\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3001NAS\u3001\u5916\u90e8\u30dc\u30ea\u30e5\u30fc\u30e0\u3001bind mount \u304c\u7d61\u3093\u3067\u3044\u3066\u3001mount \u5883\u754c\u306e\u6574\u7406\u306b\u78ba\u4fe1\u304c\u6301\u3066\u306a\u3044<\/li>\n<li>\u30b3\u30f3\u30c6\u30ca\u3001CI\u3001overlayfs \u3092\u542b\u3080\u305f\u3081\u3001\u30db\u30b9\u30c8\u5074\u3068\u306e\u898b\u3048\u65b9\u306e\u5dee\u3092\u8aac\u660e\u3057\u304d\u308c\u306a\u3044<\/li>\n<li>\u672c\u756a\u30c7\u30fc\u30bf\u3001\u76e3\u67fb\u5bfe\u8c61\u3001\u5951\u7d04\u8981\u4ef6\u304c\u3042\u308a\u3001copy \u3084 symlink \u3078\u306e\u5909\u66f4\u53ef\u5426\u3092\u4e00\u822c\u8ad6\u3067\u306f\u6c7a\u3081\u3089\u308c\u306a\u3044<\/li>\n<li>\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3001\u5bb9\u91cf\u8a2d\u8a08\u3001\u969c\u5bb3\u5fa9\u65e7\u624b\u9806\u307e\u3067\u542b\u3081\u3066\u6700\u5c0f\u5909\u66f4\u3092\u898b\u6975\u3081\u305f\u3044<\/li>\n<li>\u5f79\u54e1\u3001\u4e0a\u53f8\u3001\u9867\u5ba2\u3078\u3001\u306a\u305c\u305d\u306e\u4fee\u5fa9\u65b9\u91dd\u306a\u306e\u304b\u3092\u6574\u7406\u3057\u3066\u8aac\u660e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b<\/li>\n<\/ul>\n<p>\u3053\u306e\u3088\u3046\u306a\u5834\u9762\u3067\u306f\u3001\u8aad\u307f\u53d6\u308a\u4e2d\u5fc3\u306e\u5207\u308a\u5206\u3051\u7d50\u679c\u3092\u63c3\u3048\u305f\u3046\u3048\u3067\u3001<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u306e\u76f8\u8ac7\u30fb\u4f9d\u983c\u3092\u3054\u691c\u8a0e\u304f\u3060\u3055\u3044\u3002\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\u306f <a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">https:\/\/jouhou.main.jp\/?page_id=26983<\/a>\u3001\u304a\u96fb\u8a71\u306f 0120-838-831\u3001\u6280\u8853\u8005\u76f4\u901a\u306f 043-422-4240 \u3067\u3059\u3002\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240\u306e\u554f\u3044\u5408\u308f\u305b\u30da\u30fc\u30b8\u3067\u306f\u300124\u6642\u9593\u5bfe\u5fdc\u3001\u7121\u6599\u306e\u96fb\u8a71\u76f8\u8ac7\u3001\u898b\u7a4d\u8a3a\u65ad\u7121\u6599\u304c\u6848\u5185\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u72b6\u6cc1\u6574\u7406\u304c\u96e3\u3057\u3044\u6bb5\u968e\u3067\u3082\u3001\u500b\u5225\u6848\u4ef6\u3068\u3057\u3066\u3069\u3053\u307e\u3067\u304c\u5b89\u5168\u306a\u521d\u52d5\u304b\u3001\u3069\u3053\u304b\u3089\u304c\u69cb\u6210\u5224\u65ad\u304b\u3092\u5207\u308a\u5206\u3051\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u672c\u8a18\u4e8b\u306e\u7d50\u8ad6\u306f\u4e00\u3064\u3067\u3059\u3002EXDEV (18) \u306f\u3001\u5358\u306a\u308b\u30b3\u30de\u30f3\u30c9\u306e\u5931\u6557\u3067\u306f\u306a\u304f\u3001\u8a2d\u8a08\u3084\u904b\u7528\u306e\u524d\u63d0\u306b\u5883\u754c\u304c\u3042\u308b\u3053\u3068\u3092\u77e5\u3089\u305b\u308b\u30b5\u30a4\u30f3\u3067\u3059\u3002\u307e\u305a\u306f\u8aad\u307f\u53d6\u308a\u4e2d\u5fc3\u3067\u5883\u754c\u3092\u78ba\u8a8d\u3057\u3001hard link \u304c\u672c\u5f53\u306b\u5fc5\u8981\u304b\u3001\u5225\u65b9\u5f0f\u306b\u5bc4\u305b\u3066\u3088\u3044\u304b\u3001\u3069\u3053\u307e\u3067\u304c\u6700\u5c0f\u5909\u66f4\u304b\u3092\u6574\u7406\u3059\u308b\u3053\u3068\u304c\u5927\u5207\u3067\u3059\u3002\u305d\u3057\u3066\u3001\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u30b3\u30f3\u30c6\u30ca\u3001\u672c\u756a\u30c7\u30fc\u30bf\u3001\u76e3\u67fb\u8981\u4ef6\u306a\u3069\u3001\u4e00\u822c\u8ad6\u3060\u3051\u3067\u306f\u5224\u65ad\u3057\u306b\u304f\u3044\u6761\u4ef6\u304c\u91cd\u306a\u308b\u5834\u5408\u306f\u3001\u500b\u5225\u6848\u4ef6\u3068\u3057\u3066\u5c02\u9580\u5bb6\u3078\u76f8\u8ac7\u3057\u305f\u307b\u3046\u304c\u3001\u7d50\u679c\u3068\u3057\u3066\u88ab\u5bb3\u6700\u5c0f\u5316\u3068\u65e9\u3044\u53ce\u675f\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002\u6848\u4ef6\u3084\u69cb\u6210\u3067\u8ff7\u308f\u308c\u305f\u969b\u306f\u3001<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u306e\u3054\u76f8\u8ac7\u30fb\u3054\u4f9d\u983c\u3092\u3054\u691c\u8a0e\u304f\u3060\u3055\u3044\u3002<\/p>\n<style>h1.dai {    display: inline-block;    font-weight: bold;    border-left: solid 5px #38b3f2;    border-bottom: solid 1px #38b3f2;    margin-top: 25px; \/* \u4e0a\u306e\u7a7a\u767d\u30922\u500d *\/    margin-bottom: 5px;    padding: 5px 5px 5px 5px;    font-size: 18px; \/* \u6587\u5b57\u306e\u5927\u304d\u3055\u309218px\u306b\u8a2d\u5b9a *\/}h2.fukudai {    display: inline-block;    font-weight: bold;    border-left: solid 5px #38b3f2;    border-bottom: solid 1px #38b3f2;    margin-top: 25px; \/* \u4e0a\u306e\u7a7a\u767d\u30922\u500d *\/    margin-bottom: 5px;    padding: 5px 5px 5px 5px;    font-size: 18px; \/* \u6587\u5b57\u306e\u5927\u304d\u3055\u309218px\u306b\u8a2d\u5b9a *\/}.fukudai {    display: inline-block;    font-weight: bold;    border-left: solid 5px #38b3f2;    border-bottom: solid 1px #38b3f2;    margin: 0 auto 50px;    padding: 5px 5px 5px 5px;    font-size: 18px; \/* \u6587\u5b57\u306e\u5927\u304d\u3055\u309218px\u306b\u8a2d\u5b9a *\/}.fukudai {    display: inline-block;    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