{"id":43360,"date":"2024-10-05T13:46:29","date_gmt":"2024-10-05T05:46:29","guid":{"rendered":"https:\/\/server.hk\/cnblog\/43360\/"},"modified":"2024-10-05T13:46:29","modified_gmt":"2024-10-05T05:46:29","slug":"centos-7-%e5%9c%a8-grub-%e7%95%8c%e9%9d%a2%e4%b8%8b%e6%9b%b4%e6%94%b9-root-%e5%af%86%e7%a2%bc","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/43360\/","title":{"rendered":"CentOS 7 \u5728 grub \u754c\u9762\u4e0b\u66f4\u6539 root \u5bc6\u78bc"},"content":{"rendered":"<h1 id=\"centos-7-%e5%9c%a8-grub-%e7%95%8c%e9%9d%a2%e4%b8%8b%e6%9b%b4%e6%94%b9-root-%e5%af%86%e7%a0%81-GzLnnPJMGD\">CentOS 7 \u5728 GRUB \u754c\u9762\u4e0b\u66f4\u6539 Root \u5bc6\u7801<\/h1>\n<p>\u5728\u4f7f\u7528 CentOS 7 \u7684\u8fc7\u7a0b\u4e2d\uff0c\u53ef\u80fd\u6703\u9047\u5230\u5fd8\u8a18 root \u5bc6\u78bc\u7684\u60c5\u6cc1\u3002\u9019\u6642\u5019\uff0c\u60a8\u53ef\u4ee5\u901a\u904e GRUB \u754c\u9762\u4f86\u91cd\u7f6e\u5bc6\u78bc\u3002\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39\u5982\u4f55\u5728 CentOS 7 \u7684 GRUB \u754c\u9762\u4e0b\u66f4\u6539 root \u5bc6\u78bc\uff0c\u4e26\u63d0\u4f9b\u6b65\u9a5f\u548c\u6ce8\u610f\u4e8b\u9805\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-grub-GzLnnPJMGD\">\u4ec0\u9ebc\u662f GRUB?<\/h2>\n<p>GRUB\uff08GRand Unified Bootloader\uff09\u662f\u4e00\u7a2e\u591a\u91cd\u555f\u52d5\u52a0\u8f09\u5668\uff0c\u4e3b\u8981\u7528\u65bc Linux \u7cfb\u7d71\u3002\u5b83\u5141\u8a31\u7528\u6236\u9078\u64c7\u555f\u52d5\u7684\u64cd\u4f5c\u7cfb\u7d71\u6216\u5167\u6838\u7248\u672c\u3002\u5728\u5fd8\u8a18 root \u5bc6\u78bc\u7684\u60c5\u6cc1\u4e0b\uff0cGRUB \u63d0\u4f9b\u4e86\u4e00\u500b\u65b9\u4fbf\u7684\u65b9\u5f0f\u4f86\u9032\u5165\u55ae\u7528\u6236\u6a21\u5f0f\uff0c\u5f9e\u800c\u91cd\u7f6e\u5bc6\u78bc\u3002<\/p>\n<h2 id=\"%e6%9b%b4%e6%94%b9-root-%e5%af%86%e7%a2%bc%e7%9a%84%e6%ad%a5%e9%a9%9f-GzLnnPJMGD\">\u66f4\u6539 Root \u5bc6\u78bc\u7684\u6b65\u9a5f<\/h2>\n<h3 id=\"%e6%ad%a5%e9%a9%9f-1-%e9%87%8d%e5%95%9f%e7%b3%bb%e7%b5%b1-GzLnnPJMGD\">\u6b65\u9a5f 1: \u91cd\u555f\u7cfb\u7d71<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u91cd\u555f CentOS 7 \u7cfb\u7d71\u3002\u5728\u555f\u52d5\u904e\u7a0b\u4e2d\uff0c\u7576\u770b\u5230 GRUB \u83dc\u55ae\u6642\uff0c\u8acb\u6309\u4e0b <code>e<\/code> \u9375\u9032\u5165\u7de8\u8f2f\u6a21\u5f0f\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f-2-%e7%b7%a8%e8%bc%af%e5%95%9f%e5%8b%95%e5%8f%83%e6%95%b8-GzLnnPJMGD\">\u6b65\u9a5f 2: \u7de8\u8f2f\u555f\u52d5\u53c3\u6578<\/h3>\n<p>\u5728\u7de8\u8f2f\u754c\u9762\u4e2d\uff0c\u60a8\u6703\u770b\u5230\u4ee5 <code>linux16<\/code> \u958b\u982d\u7684\u884c\u3002\u9019\u4e00\u884c\u5305\u542b\u4e86\u555f\u52d5\u5167\u6838\u7684\u53c3\u6578\u3002\u60a8\u9700\u8981\u5728\u9019\u4e00\u884c\u7684\u672b\u5c3e\u6dfb\u52a0\u4ee5\u4e0b\u5167\u5bb9\uff1a<\/p>\n<pre><code>rd.break<\/code><\/pre>\n<p>\u9019\u6a23\u505a\u7684\u76ee\u7684\u662f\u8b93\u7cfb\u7d71\u9032\u5165\u7dca\u6025\u6a21\u5f0f\uff0c\u4e26\u4e14\u5728\u6b64\u6a21\u5f0f\u4e0b\u53ef\u4ee5\u9032\u884c\u6587\u4ef6\u7cfb\u7d71\u7684\u4fee\u6539\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f-3-%e9%80%b2%e5%85%a5%e7%b7%8a%e6%80%a5%e6%a8%a1%e5%bc%8f-GzLnnPJMGD\">\u6b65\u9a5f 3: \u9032\u5165\u7dca\u6025\u6a21\u5f0f<\/h3>\n<p>\u5b8c\u6210\u7de8\u8f2f\u5f8c\uff0c\u6309\u4e0b <code>Ctrl + X<\/code> \u9375\u4f86\u555f\u52d5\u7cfb\u7d71\u3002\u7cfb\u7d71\u5c07\u9032\u5165\u7dca\u6025\u6a21\u5f0f\uff0c\u4e26\u4e14\u60a8\u5c07\u770b\u5230\u4e00\u500b\u547d\u4ee4\u884c\u754c\u9762\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f-4-%e9%87%8d%e6%96%b0%e6%8e%9b%e8%bc%89%e6%a0%b9%e6%96%87%e4%bb%b6%e7%b3%bb%e7%b5%b1-GzLnnPJMGD\">\u6b65\u9a5f 4: \u91cd\u65b0\u639b\u8f09\u6839\u6587\u4ef6\u7cfb\u7d71<\/h3>\n<p>\u5728\u7dca\u6025\u6a21\u5f0f\u4e0b\uff0c\u6839\u6587\u4ef6\u7cfb\u7d71\u662f\u4ee5\u53ea\u8b80\u6a21\u5f0f\u639b\u8f09\u7684\u3002\u60a8\u9700\u8981\u5c07\u5176\u91cd\u65b0\u639b\u8f09\u70ba\u53ef\u8b80\u5beb\u6a21\u5f0f\u3002\u8acb\u57f7\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>mount -o remount,rw \/sysroot<\/code><\/pre>\n<h3 id=\"%e6%ad%a5%e9%a9%9f-5-%e5%88%87%e6%8f%9b%e5%88%b0%e6%a0%b9%e6%96%87%e4%bb%b6%e7%b3%bb%e7%b5%b1-GzLnnPJMGD\">\u6b65\u9a5f 5: \u5207\u63db\u5230\u6839\u6587\u4ef6\u7cfb\u7d71<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u60a8\u9700\u8981\u5207\u63db\u5230\u6839\u6587\u4ef6\u7cfb\u7d71\u3002\u8acb\u57f7\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>chroot \/sysroot<\/code><\/pre>\n<h3 id=\"%e6%ad%a5%e9%a9%9f-6-%e6%9b%b4%e6%94%b9-root-%e5%af%86%e7%a2%bc-GzLnnPJMGD\">\u6b65\u9a5f 6: \u66f4\u6539 Root \u5bc6\u78bc<\/h3>\n<p>\u73fe\u5728\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u66f4\u6539 root \u5bc6\u78bc\uff1a<\/p>\n<pre><code>passwd root<\/code><\/pre>\n<p>\u7cfb\u7d71\u6703\u63d0\u793a\u60a8\u8f38\u5165\u65b0\u5bc6\u78bc\uff0c\u8acb\u6839\u64da\u63d0\u793a\u5b8c\u6210\u64cd\u4f5c\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f-7-%e9%87%8d%e6%96%b0%e6%a8%99%e8%a8%98-selinux-GzLnnPJMGD\">\u6b65\u9a5f 7: \u91cd\u65b0\u6a19\u8a18 SELinux<\/h3>\n<p>\u5728\u66f4\u6539\u5bc6\u78bc\u5f8c\uff0c\u60a8\u9700\u8981\u57f7\u884c\u4ee5\u4e0b\u547d\u4ee4\u4f86\u91cd\u65b0\u6a19\u8a18 SELinux\uff1a<\/p>\n<pre><code>touch \/.autorelabel<\/code><\/pre>\n<h3 id=\"%e6%ad%a5%e9%a9%9f-8-%e9%80%80%e5%87%ba%e4%b8%a6%e9%87%8d%e5%95%9f%e7%b3%bb%e7%b5%b1-GzLnnPJMGD\">\u6b65\u9a5f 8: \u9000\u51fa\u4e26\u91cd\u555f\u7cfb\u7d71<\/h3>\n<p>\u5b8c\u6210\u4ee5\u4e0a\u6b65\u9a5f\u5f8c\uff0c\u60a8\u53ef\u4ee5\u9000\u51fa chroot \u74b0\u5883\u4e26\u91cd\u555f\u7cfb\u7d71\uff1a<\/p>\n<pre><code>exit\nreboot<\/code><\/pre>\n<p>\u7cfb\u7d71\u5c07\u91cd\u65b0\u555f\u52d5\uff0c\u4e26\u4e14\u60a8\u53ef\u4ee5\u4f7f\u7528\u65b0\u8a2d\u7f6e\u7684 root \u5bc6\u78bc\u767b\u9304\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-GzLnnPJMGD\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u5728\u9032\u884c\u6b64\u64cd\u4f5c\u4e4b\u524d\uff0c\u5efa\u8b70\u5099\u4efd\u91cd\u8981\u6578\u64da\u3002<\/li>\n<li>\u78ba\u4fdd\u60a8\u6709\u7269\u7406\u8a2a\u554f\u6b0a\u9650\u6216\u9060\u7a0b\u63a7\u5236\u6b0a\u9650\uff0c\u56e0\u70ba\u9019\u4e9b\u6b65\u9a5f\u9700\u8981\u5728\u555f\u52d5\u904e\u7a0b\u4e2d\u9032\u884c\u3002<\/li>\n<li>\u5982\u679c\u60a8\u7684\u7cfb\u7d71\u555f\u7528\u4e86\u52a0\u5bc6\uff0c\u5247\u9700\u8981\u5148\u89e3\u5bc6\u624d\u80fd\u9032\u884c\u4e0a\u8ff0\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-GzLnnPJMGD\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u4ee5\u4e0a\u6b65\u9a5f\uff0c\u60a8\u53ef\u4ee5\u5728 CentOS 7 \u7684 GRUB \u754c\u9762\u4e0b\u6210\u529f\u66f4\u6539 root \u5bc6\u78bc\u3002\u9019\u4e00\u904e\u7a0b\u96d6\u7136\u7c21\u55ae\uff0c\u4f46\u9700\u8981\u8b39\u614e\u64cd\u4f5c\uff0c\u4ee5\u514d\u9020\u6210\u7cfb\u7d71\u640d\u58de\u3002\u5982\u679c\u60a8\u9700\u8981\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u5404\u7a2e\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u9084\u662f <a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b66\u4e60\u5982\u4f55\u5728 CentOS 7 \u7684 GRUB \u754c\u9762\u4e0b\u91cd\u7f6e root \u5bc6\u7801\uff0c\u786e\u4fdd\u7cfb\u7edf\u5b89\u5168\u4e0e\u8bbf\u95ee\u6743\u9650\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-43360","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/43360","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=43360"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/43360\/revisions"}],"predecessor-version":[{"id":43361,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/43360\/revisions\/43361"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=43360"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=43360"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=43360"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}