{"id":482,"date":"2020-06-05T10:13:35","date_gmt":"2020-06-05T02:13:35","guid":{"rendered":"http:\/\/wp.vicds.com\/?p=482"},"modified":"2023-09-20T08:40:18","modified_gmt":"2023-09-20T00:40:18","slug":"remote-backup-dd-linux","status":"publish","type":"post","link":"https:\/\/wp.vicds.com\/?p=482","title":{"rendered":"remote backup (dd) @linux"},"content":{"rendered":"\n<p>\u53c3\u8003\u81ea <a href=\"https:\/\/unix.stackexchange.com\/questions\/132797\/how-to-dd-a-remote-disk-using-ssh-on-local-machine-and-save-to-a-local-disk\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/unix.stackexchange.com\/questions\/132797\/how-to-dd-a-remote-disk-using-ssh-on-local-machine-and-save-to-a-local-disk<\/a><\/p>\n\n\n\n<p><em>run from remote computer<\/em> \u5f9e\u672c\u5730\u5099\u4efd\u5230\u9060\u7aef<\/p>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-\">$ dd if=\/dev\/sda | gzip -1 - | ssh user@local dd of=image.gz<\/code><\/pre>\n\n\n\n<p>\u770b\u9032\u5ea6<\/p>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-\"># apt install pv\n# dd if=\/dev\/sda | gzip -1 - | pv | ssh user@local dd of=\/path\/to\/image.gz<\/code><\/pre>\n\n\n\n<p><em>run from local computer<\/em><\/p>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-\">$ ssh user@remote &quot;dd if=\/dev\/sda | gzip -1 -&quot; | dd of=image.gz<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-\"># local machine backup\nsudo dd if=\/dev\/hda of=~\/hdadisk.img\n#local machine restore\nsudo dd if=hdadisk.img of=\/dev\/hda\n\u9019\u7a2e\u505a\u6cd5\u901a\u5e38\u7528\u65bc\u5099\u4efd\u789f\u6bd4\u539f\u59cb\u789f\u5c0f\n\n\u5982\u679c\u9700\u8981\u58d3\u7e2e\u5247\nsudo dd if=\/dev\/sda bs=128M | gzip -9 | gzip &gt; \/path\/to\/hdadisk.img.gz\n\u6a94\u6848\u592a\u5927\u7684\u8a71\nsudo dd if=\/dev\/sda bs=128M | gzip -9 -c | split -b 2G - \/path\/to\/sdadisk.img.gz.\n\n\u9084\u539f\nsudo gzip -dc sdadisk.img.gz | dd of=\/dev\/sda bs=128M\n\u9084\u539f\u5927\u6a94\ncat \/path\/to\/sdadisk.img.gz.* | gzip -dc | dd of=\/dev\/sda bs=128M<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-\">\u53e6\u5916\u5728dd\u5f8c\u9762\u52a0\u4e0a status=progress \u53ef\u4ee5\u986f\u793a\u9032\u5ea6\n\u5982\u679c\u5fd8\u4e86\u52a0\u7684\u8a71, \u518d\u958b\u4e00\u500bshell\u8f38\u5165\nsudo kill -USR1 $(pgrep ^dd)\n\u6bcf5\u79d2\u8b80\u4e00\u6b21\nwatch -n5 &#039;sudo kill -USR1 $(pgrep ^dd)&#039;<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u53c3\u8003\u81ea https:\/\/unix.stack [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,1],"tags":[],"class_list":["post-482","post","type-post","status-publish","format-standard","hentry","category-linux","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/wp.vicds.com\/index.php?rest_route=\/wp\/v2\/posts\/482","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.vicds.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.vicds.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.vicds.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.vicds.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=482"}],"version-history":[{"count":14,"href":"https:\/\/wp.vicds.com\/index.php?rest_route=\/wp\/v2\/posts\/482\/revisions"}],"predecessor-version":[{"id":2118,"href":"https:\/\/wp.vicds.com\/index.php?rest_route=\/wp\/v2\/posts\/482\/revisions\/2118"}],"wp:attachment":[{"href":"https:\/\/wp.vicds.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=482"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.vicds.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=482"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.vicds.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}