{"id":17553,"date":"2024-11-18T16:07:55","date_gmt":"2024-11-18T08:07:55","guid":{"rendered":"https:\/\/fwq.ai\/blog\/17553\/"},"modified":"2024-11-18T16:07:55","modified_gmt":"2024-11-18T08:07:55","slug":"%e8%a7%a3%e6%9e%90linux-mbr%e7%9a%84%e5%ae%9a%e4%b9%89%e5%92%8c%e5%8a%9f%e8%83%bd","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/17553\/","title":{"rendered":"\u89e3\u6790Linux MBR\u7684\u5b9a\u4e49\u548c\u529f\u80fd"},"content":{"rendered":"

\"\u89e3\u6790Linux<\/p>\n

Linux MBR\u7684\u5b9a\u4e49\u548c\u4f5c\u7528<\/strong><\/p>\n

\u5728Linux\u7cfb\u7edf\u4e2d\uff0cMBR\uff08Master Boot Record\uff0c\u4e3b\u5f15\u5bfc\u8bb0\u5f55\uff09\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u90e8\u5206\uff0c\u5b83\u4f4d\u4e8e\u786c\u76d8\u7684\u7b2c\u4e00\u4e2a\u6247\u533a\uff0c\u5360\u636e\u4e86512\u4e2a\u5b57\u8282\u7684\u7a7a\u95f4\u3002MBR\u7684\u4f5c\u7528\u662f\u5728\u8ba1\u7b97\u673a\u542f\u52a8\u65f6\u63d0\u4f9b\u5f15\u5bfc\u7a0b\u5e8f\uff0c\u5e2e\u52a9\u7cfb\u7edf\u52a0\u8f7d\u64cd\u4f5c\u7cfb\u7edf\u3002<\/p>\n

MBR\u7684\u7ed3\u6784<\/h3>\n

MBR\u7684\u7ed3\u6784\u5982\u4e0b\uff1a<\/p>\n

    \n
  1. \u5f15\u5bfc\u4ee3\u7801\u533a\uff08446\u5b57\u8282\uff09<\/strong>\uff1a\u8fd9\u90e8\u5206\u5305\u542b\u5f15\u5bfc\u52a0\u8f7d\u7a0b\u5e8f\u7684\u4ee3\u7801\uff0c\u8d1f\u8d23\u542f\u52a8\u64cd\u4f5c\u7cfb\u7edf\u3002<\/li>\n
  2. \u5206\u533a\u8868\uff0864\u5b57\u8282\uff09<\/strong>\uff1a\u5206\u533a\u8868\u8bb0\u5f55\u4e86\u786c\u76d8\u4e0a\u7684\u5206\u533a\u4fe1\u606f\uff0c\u5305\u62ec\u6bcf\u4e2a\u5206\u533a\u7684\u8d77\u59cb\u4f4d\u7f6e\u3001\u5927\u5c0f\u3001\u5206\u533a\u7c7b\u578b\u7b49\u3002<\/li>\n
  3. \u7b7e\u540d\uff082\u5b57\u8282\uff09<\/strong>\uff1a\u6700\u540e\u4e24\u4e2a\u5b57\u8282\u7528\u6765\u5b58\u653e\u6807\u8bc6\u7b26 0x55AA\uff0c\u8868\u793a\u8fd9\u662f\u4e00\u4e2a\u6709\u6548\u7684MBR\u3002<\/li>\n<\/ol>\n

    MBR\u7684\u4f5c\u7528<\/h3>\n

    \u5728\u8ba1\u7b97\u673a\u542f\u52a8\u65f6\uff0cBIOS\u4f1a\u52a0\u8f7d\u786c\u76d8\u7684MBR\u5230\u5185\u5b58\u4e2d\u6267\u884c\u3002MBR\u4e2d\u7684\u5f15\u5bfc\u52a0\u8f7d\u7a0b\u5e8f\u4f1a\u8bfb\u53d6\u5206\u533a\u8868\uff0c\u627e\u5230\u6d3b\u52a8\u5206\u533a\uff08Active Partition\uff09\u5e76\u52a0\u8f7d\u8be5\u5206\u533a\u7684\u5f15\u5bfc\u6247\u533a\uff0c\u4ece\u800c\u542f\u52a8\u64cd\u4f5c\u7cfb\u7edf\u3002<\/p>\n

    \u5b9e\u9645\u64cd\u4f5c\u6f14\u793a<\/h3>\n

    \u4e0b\u9762\u901a\u8fc7\u4e00\u4e2a\u7b80\u5355\u7684\u5b9e\u9645\u64cd\u4f5c\u6765\u6f14\u793a\u5982\u4f55\u67e5\u770b\u548c\u4fee\u6539Linux\u7cfb\u7edf\u4e2d\u7684MBR\u3002<\/p>\n

    \u67e5\u770bMBR<\/h4>\n
    sudo dd if=\/dev\/sda of=mbr_backup bs=512 count=1\nhexdump -C mbr_backup<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u901a\u8fc7\u4e0a\u9762\u7684\u547d\u4ee4\uff0c\u6211\u4eec\u5c06\u786c\u76d8sda\u7684MBR\u5907\u4efd\u5230\u4e00\u4e2a\u6587\u4ef6\u4e2d\uff0c\u5e76\u901a\u8fc7hexdump\u547d\u4ee4\u67e5\u770b\u6587\u4ef6\u7684\u5185\u5bb9\u3002\u4f60\u53ef\u4ee5\u770b\u5230MBR\u7684\u7ed3\u6784\u4ee5\u53ca\u91cc\u9762\u5b58\u653e\u7684\u5185\u5bb9\u3002<\/p>\n
    \u4fee\u6539MBR<\/h4>\n
    sudo fdisk \/dev\/sda\nCommand (m for help): a\nPartition number (1-4): 1\nCommand (m for help): w<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u4e0a\u9762\u7684\u547d\u4ee4\u4f7f\u7528fdisk\u5de5\u5177\u6765\u7f16\u8f91\u786c\u76d8sda\u7684\u5206\u533a\u8868\uff0c\u5c06\u7b2c\u4e00\u4e2a\u5206\u533a\u8bbe\u7f6e\u4e3a\u6d3b\u52a8\u5206\u533a\u3002\u8fd9\u6837\u53ef\u4ee5\u4fee\u6539MBR\u4e2d\u8bb0\u5f55\u7684\u6d3b\u52a8\u5206\u533a\uff0c\u4ece\u800c\u6539\u53d8\u7cfb\u7edf\u542f\u52a8\u65f6\u52a0\u8f7d\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002<\/p>\n
    \u603b\u7ed3<\/h3>\n
    MBR\u4f5c\u4e3a\u8ba1\u7b97\u673a\u542f\u52a8\u7684\u7b2c\u4e00\u9053\u95e8\uff0c\u5bf9\u7cfb\u7edf\u7684\u542f\u52a8\u8fc7\u7a0b\u81f3\u5173\u91cd\u8981\u3002\u901a\u8fc7\u4e86\u89e3MBR\u7684\u7ed3\u6784\u548c\u4f5c\u7528\uff0c\u6211\u4eec\u80fd\u591f\u66f4\u597d\u5730\u7406\u89e3\u7cfb\u7edf\u542f\u52a8\u7684\u6d41\u7a0b\uff0c\u4ee5\u53ca\u5728\u5fc5\u8981\u7684\u65f6\u5019\u8fdb\u884c\u8c03\u6574\u548c\u4fee\u590d\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff0c\u4e5f\u6b22\u8fce\u5927\u5bb6\u7ee7\u7eed\u6df1\u5165\u5b66\u4e60\u548c\u63a2\u7d22\u3002<\/p>\n
    \u5efa\u8bae\uff1a<\/strong>\u5728\u64cd\u4f5cMBR\u65f6\u4e00\u5b9a\u8981\u8c28\u614e\uff0c\u64cd\u4f5c\u5931\u8bef\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u65e0\u6cd5\u542f\u52a8\u6216\uff0c\u8bf7\u52a1\u5fc5\u5907\u4efd\u91cd\u8981\u6570\u636e\u5e76\u8c28\u614e\u64cd\u4f5c\u3002<\/p>\n
    \u4ee5\u4e0a\u5c31\u662f\u89e3\u6790Linux MBR\u7684\u5b9a\u4e49\u548c\u529f\u80fd\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    Linux MBR\u7684\u5b9a\u4e49\u548c\u4f5c\u7528 \u5728Linux\u7cfb\u7edf\u4e2d\uff0cMBR\uff08Master Boot Record\uff0c\u4e3b\u5f15\u5bfc\u8bb0\u5f55\uff09\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u90e8\u5206\uff0c\u5b83\u4f4d\u4e8e\u786c\u76d8\u7684\u7b2c\u4e00\u4e2a\u6247\u533a\uff0c\u5360\u636e\u4e86512\u4e2a\u5b57\u8282\u7684\u7a7a\u95f4\u3002MBR\u7684\u4f5c\u7528\u662f\u5728\u8ba1\u7b97\u673a\u542f\u52a8\u65f6\u63d0\u4f9b\u5f15\u5bfc\u7a0b\u5e8f\uff0c\u5e2e\u52a9\u7cfb\u7edf\u52a0\u8f7d\u64cd\u4f5c\u7cfb\u7edf\u3002 MBR\u7684\u7ed3\u6784 MBR\u7684\u7ed3\u6784\u5982\u4e0b\uff1a \u5f15\u5bfc\u4ee3\u7801\u533a\uff08446\u5b57\u8282\uff09\uff1a\u8fd9\u90e8\u5206\u5305\u542b\u5f15\u5bfc\u52a0\u8f7d\u7a0b\u5e8f\u7684\u4ee3\u7801\uff0c\u8d1f\u8d23\u542f\u52a8\u64cd\u4f5c\u7cfb\u7edf\u3002 \u5206\u533a\u8868\uff0864\u5b57\u8282\uff09\uff1a\u5206\u533a\u8868\u8bb0\u5f55\u4e86\u786c\u76d8\u4e0a\u7684\u5206\u533a\u4fe1\u606f\uff0c\u5305\u62ec\u6bcf\u4e2a\u5206\u533a\u7684\u8d77\u59cb\u4f4d\u7f6e\u3001\u5927\u5c0f\u3001\u5206\u533a\u7c7b\u578b\u7b49\u3002 \u7b7e\u540d\uff082\u5b57\u8282\uff09\uff1a\u6700\u540e\u4e24\u4e2a\u5b57\u8282\u7528\u6765\u5b58\u653e\u6807\u8bc6\u7b26 0x55AA\uff0c\u8868\u793a\u8fd9\u662f\u4e00\u4e2a\u6709\u6548\u7684MBR\u3002 MBR\u7684\u4f5c\u7528 \u5728\u8ba1\u7b97\u673a\u542f\u52a8\u65f6\uff0cBIOS\u4f1a\u52a0\u8f7d\u786c\u76d8\u7684MBR\u5230\u5185\u5b58\u4e2d\u6267\u884c\u3002MBR\u4e2d\u7684\u5f15\u5bfc\u52a0\u8f7d\u7a0b\u5e8f\u4f1a\u8bfb\u53d6\u5206\u533a\u8868\uff0c\u627e\u5230\u6d3b\u52a8\u5206\u533a\uff08Active Partition\uff09\u5e76\u52a0\u8f7d\u8be5\u5206\u533a\u7684\u5f15\u5bfc\u6247\u533a\uff0c\u4ece\u800c\u542f\u52a8\u64cd\u4f5c\u7cfb\u7edf\u3002 \u5b9e\u9645\u64cd\u4f5c\u6f14\u793a \u4e0b\u9762\u901a\u8fc7\u4e00\u4e2a\u7b80\u5355\u7684\u5b9e\u9645\u64cd\u4f5c\u6765\u6f14\u793a\u5982\u4f55\u67e5\u770b\u548c\u4fee\u6539Linux\u7cfb\u7edf\u4e2d\u7684MBR\u3002 \u67e5\u770bMBR sudo dd if=\/dev\/sda of=mbr_backup bs=512 count=1 hexdump -C mbr_backup \u767b\u5f55\u540e\u590d\u5236 \u901a\u8fc7\u4e0a\u9762\u7684\u547d\u4ee4\uff0c\u6211\u4eec\u5c06\u786c\u76d8sda\u7684MBR\u5907\u4efd\u5230\u4e00\u4e2a\u6587\u4ef6\u4e2d\uff0c\u5e76\u901a\u8fc7hexdump\u547d\u4ee4\u67e5\u770b\u6587\u4ef6\u7684\u5185\u5bb9\u3002\u4f60\u53ef\u4ee5\u770b\u5230MBR\u7684\u7ed3\u6784\u4ee5\u53ca\u91cc\u9762\u5b58\u653e\u7684\u5185\u5bb9\u3002 \u4fee\u6539MBR sudo fdisk \/dev\/sda Command (m for help): a Partition number (1-4): 1 Command (m for help): w \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u9762\u7684\u547d\u4ee4\u4f7f\u7528fdisk\u5de5\u5177\u6765\u7f16\u8f91\u786c\u76d8sda\u7684\u5206\u533a\u8868\uff0c\u5c06\u7b2c\u4e00\u4e2a\u5206\u533a\u8bbe\u7f6e\u4e3a\u6d3b\u52a8\u5206\u533a\u3002\u8fd9\u6837\u53ef\u4ee5\u4fee\u6539MBR\u4e2d\u8bb0\u5f55\u7684\u6d3b\u52a8\u5206\u533a\uff0c\u4ece\u800c\u6539\u53d8\u7cfb\u7edf\u542f\u52a8\u65f6\u52a0\u8f7d\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002 \u603b\u7ed3 MBR\u4f5c\u4e3a\u8ba1\u7b97\u673a\u542f\u52a8\u7684\u7b2c\u4e00\u9053\u95e8\uff0c\u5bf9\u7cfb\u7edf\u7684\u542f\u52a8\u8fc7\u7a0b\u81f3\u5173\u91cd\u8981\u3002\u901a\u8fc7\u4e86\u89e3MBR\u7684\u7ed3\u6784\u548c\u4f5c\u7528\uff0c\u6211\u4eec\u80fd\u591f\u66f4\u597d\u5730\u7406\u89e3\u7cfb\u7edf\u542f\u52a8\u7684\u6d41\u7a0b\uff0c\u4ee5\u53ca\u5728\u5fc5\u8981\u7684\u65f6\u5019\u8fdb\u884c\u8c03\u6574\u548c\u4fee\u590d\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff0c\u4e5f\u6b22\u8fce\u5927\u5bb6\u7ee7\u7eed\u6df1\u5165\u5b66\u4e60\u548c\u63a2\u7d22\u3002 \u5efa\u8bae\uff1a\u5728\u64cd\u4f5cMBR\u65f6\u4e00\u5b9a\u8981\u8c28\u614e\uff0c\u64cd\u4f5c\u5931\u8bef\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u65e0\u6cd5\u542f\u52a8\u6216\uff0c\u8bf7\u52a1\u5fc5\u5907\u4efd\u91cd\u8981\u6570\u636e\u5e76\u8c28\u614e\u64cd\u4f5c\u3002 \u4ee5\u4e0a\u5c31\u662f\u89e3\u6790Linux MBR\u7684\u5b9a\u4e49\u548c\u529f\u80fd\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-17553","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/17553","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=17553"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/17553\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=17553"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=17553"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=17553"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}