{"id":44670,"date":"2024-10-06T17:18:17","date_gmt":"2024-10-06T09:18:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/44670\/"},"modified":"2024-10-06T17:18:17","modified_gmt":"2024-10-06T09:18:17","slug":"linux-%e5%91%bd%e4%bb%a4%ef%bc%9add-%e8%bd%89%e6%8f%9b%e4%b8%a6%e8%a4%87%e8%a3%bd%e6%96%87%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/44670\/","title":{"rendered":"Linux \u547d\u4ee4\uff1add &#8211; \u8f49\u63db\u4e26\u8907\u88fd\u6587\u4ef6"},"content":{"rendered":"<h1 id=\"linux-%e5%91%bd%e4%bb%a4%ef%bc%9add-%e8%bd%89%e6%8f%9b%e4%b8%a6%e8%a4%87%e8%a3%bd%e6%96%87%e4%bb%b6-eDXfBsNbsm\">Linux \u547d\u4ee4\uff1add &#8211; \u8f49\u63db\u4e26\u8907\u88fd\u6587\u4ef6<\/h1>\n<p>\u5728 Linux \u7cfb\u7d71\u4e2d\uff0c<code>dd<\/code> \u547d\u4ee4\u662f\u4e00\u500b\u5f37\u5927\u4e14\u9748\u6d3b\u7684\u5de5\u5177\uff0c\u4e3b\u8981\u7528\u65bc\u8f49\u63db\u548c\u8907\u88fd\u6587\u4ef6\u3002\u5b83\u7684\u529f\u80fd\u4e0d\u50c5\u9650\u65bc\u7c21\u55ae\u7684\u6587\u4ef6\u8907\u88fd\uff0c\u9084\u53ef\u4ee5\u7528\u65bc\u5275\u5efa\u78c1\u789f\u6620\u50cf\u3001\u5099\u4efd\u548c\u6062\u5fa9\u6578\u64da\u7b49\u591a\u7a2e\u7528\u9014\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e <code>dd<\/code> \u547d\u4ee4\u7684\u57fa\u672c\u7528\u6cd5\u3001\u9078\u9805\u53ca\u5176\u61c9\u7528\u7bc4\u4f8b\u3002<\/p>\n<h2 id=\"%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-eDXfBsNbsm\">\u57fa\u672c\u8a9e\u6cd5<\/h2>\n<p><code>dd<\/code> \u547d\u4ee4\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>dd if= of= [options]<\/code><\/pre>\n<ul>\n<li><code>if<\/code>\uff1a\u6307\u5b9a\u8f38\u5165\u6587\u4ef6\uff08input file\uff09\u3002<\/li>\n<li><code>of<\/code>\uff1a\u6307\u5b9a\u8f38\u51fa\u6587\u4ef6\uff08output file\uff09\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%b8%b8%e7%94%a8%e9%81%b8%e9%a0%85-eDXfBsNbsm\">\u5e38\u7528\u9078\u9805<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684 <code>dd<\/code> \u547d\u4ee4\u9078\u9805\uff1a<\/p>\n<ul>\n<li><code>bs=<\/code>\uff1a\u8a2d\u7f6e\u8b80\u53d6\u548c\u5beb\u5165\u7684\u584a\u5927\u5c0f\uff0c\u9ed8\u8a8d\u70ba 512 \u5b57\u7bc0\u3002<\/li>\n<li><code>count=<\/code>\uff1a\u6307\u5b9a\u8981\u8907\u88fd\u7684\u584a\u6578\u3002<\/li>\n<li><code>status=<\/code>\uff1a\u8a2d\u7f6e\u8f38\u51fa\u72c0\u614b\u4fe1\u606f\u7684\u8a73\u7d30\u7a0b\u5ea6\uff0c\u5e38\u7528\u7684\u6709 <code>none<\/code>\u3001<code>noxfer<\/code> \u548c <code>progress<\/code>\u3002<\/li>\n<li><code>conv=<\/code>\uff1a\u6307\u5b9a\u8f49\u63db\u9078\u9805\uff0c\u5982 <code>notrunc<\/code>\uff08\u4e0d\u622a\u65b7\u8f38\u51fa\u6587\u4ef6\uff09\u548c <code>sync<\/code>\uff08\u586b\u5145\u4e0d\u8db3\u7684\u584a\uff09\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%87%89%e7%94%a8%e7%af%84%e4%be%8b-eDXfBsNbsm\">\u61c9\u7528\u7bc4\u4f8b<\/h2>\n<h3 id=\"1-%e8%a4%87%e8%a3%bd%e6%96%87%e4%bb%b6-eDXfBsNbsm\">1. \u8907\u88fd\u6587\u4ef6<\/h3>\n<p>\u6700\u57fa\u672c\u7684\u7528\u6cd5\u662f\u8907\u88fd\u4e00\u500b\u6587\u4ef6\u5230\u53e6\u4e00\u500b\u6587\u4ef6\uff1a<\/p>\n<pre><code>dd if=\/path\/to\/source of=\/path\/to\/destination<\/code><\/pre>\n<h3 id=\"2-%e5%89%b5%e5%bb%ba%e7%a3%81%e7%a2%9f%e6%98%a0%e5%83%8f-eDXfBsNbsm\">2. \u5275\u5efa\u78c1\u789f\u6620\u50cf<\/h3>\n<p>\u53ef\u4ee5\u4f7f\u7528 <code>dd<\/code> \u547d\u4ee4\u5275\u5efa\u6574\u500b\u78c1\u789f\u7684\u6620\u50cf\u6587\u4ef6\uff1a<\/p>\n<pre><code>dd if=\/dev\/sda of=\/path\/to\/disk_image.img bs=4M<\/code><\/pre>\n<p>\u9019\u88e1\uff0c<code>\/dev\/sda<\/code> \u662f\u8981\u5099\u4efd\u7684\u78c1\u789f\uff0c<code>bs=4M<\/code> \u8a2d\u7f6e\u584a\u5927\u5c0f\u70ba 4MB\uff0c\u4ee5\u63d0\u9ad8\u8907\u88fd\u901f\u5ea6\u3002<\/p>\n<h3 id=\"3-%e5%82%99%e4%bb%bd%e5%92%8c%e6%81%a2%e5%be%a9-eDXfBsNbsm\">3. \u5099\u4efd\u548c\u6062\u5fa9<\/h3>\n<p>\u4f7f\u7528 <code>dd<\/code> \u547d\u4ee4\u53ef\u4ee5\u8f15\u9b06\u5099\u4efd\u548c\u6062\u5fa9\u5206\u5340\u3002\u4f8b\u5982\uff0c\u5099\u4efd\u4e00\u500b\u5206\u5340\uff1a<\/p>\n<pre><code>dd if=\/dev\/sda1 of=\/path\/to\/backup.img bs=1M<\/code><\/pre>\n<p>\u8981\u6062\u5fa9\u5099\u4efd\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>dd if=\/path\/to\/backup.img of=\/dev\/sda1 bs=1M<\/code><\/pre>\n<h3 id=\"4-%e6%95%b8%e6%93%9a%e6%b8%85%e9%99%a4-eDXfBsNbsm\">4. \u6578\u64da\u6e05\u9664<\/h3>\n<p>\u5982\u679c\u9700\u8981\u6e05\u9664\u78c1\u789f\u4e0a\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>dd<\/code> \u547d\u4ee4\u5beb\u5165\u96f6\uff1a<\/p>\n<pre><code>dd if=\/dev\/zero of=\/dev\/sda bs=1M<\/code><\/pre>\n<p>\u9019\u5c07\u7528\u96f6\u586b\u5145\u6574\u500b\u78c1\u789f\uff0c\u5f9e\u800c\u6e05\u9664\u6240\u6709\u6578\u64da\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-eDXfBsNbsm\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u4f7f\u7528 <code>dd<\/code> \u547d\u4ee4\u6642\u9700\u8b39\u614e\uff0c\u56e0\u70ba\u4e0d\u6b63\u78ba\u7684\u64cd\u4f5c\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u4e1f\u5931\u3002\u7279\u5225\u662f\u5728\u6307\u5b9a\u8f38\u51fa\u6587\u4ef6\u6642\uff0c\u8acb\u78ba\u4fdd\u4e0d\u6703\u8986\u84cb\u91cd\u8981\u6578\u64da\u3002\u6b64\u5916\uff0c<code>dd<\/code> \u547d\u4ee4\u7684\u57f7\u884c\u901f\u5ea6\u53ef\u80fd\u8f03\u6162\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u6587\u4ef6\u6642\uff0c\u56e0\u6b64\u5efa\u8b70\u6839\u64da\u5be6\u969b\u9700\u6c42\u8abf\u6574\u584a\u5927\u5c0f\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-eDXfBsNbsm\">\u7e3d\u7d50<\/h2>\n<p>\u7e3d\u7684\u4f86\u8aaa\uff0c<code>dd<\/code> \u547d\u4ee4\u662f\u4e00\u500b\u529f\u80fd\u5f37\u5927\u7684\u5de5\u5177\uff0c\u9069\u5408\u7528\u65bc\u5404\u7a2e\u6587\u4ef6\u8f49\u63db\u548c\u8907\u88fd\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u5275\u5efa\u78c1\u789f\u6620\u50cf\u3001\u5099\u4efd\u6578\u64da\u9084\u662f\u6e05\u9664\u78c1\u789f\uff0c<code>dd<\/code> \u90fd\u80fd\u63d0\u4f9b\u9748\u6d3b\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u7ba1\u7406\u6578\u64da\u7684\u7528\u6236\u4f86\u8aaa\uff0c\u638c\u63e1 <code>dd<\/code> \u547d\u4ee4\u7684\u4f7f\u7528\u5c07\u5927\u6709\u88e8\u76ca\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3 Linux \u547d\u4ee4 dd \u7684\u7528\u6cd5\uff0c\u5b78\u7fd2\u5982\u4f55\u8f49\u63db\u548c\u8907\u88fd\u6587\u4ef6\uff0c\u63d0\u5347\u7cfb\u7d71\u7ba1\u7406\u548c\u6578\u64da\u8655\u7406\u6548\u7387\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-44670","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44670","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=44670"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44670\/revisions"}],"predecessor-version":[{"id":44671,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44670\/revisions\/44671"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=44670"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=44670"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=44670"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}