{"id":2356,"date":"2017-06-22T06:03:57","date_gmt":"2017-06-21T22:03:57","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=2356"},"modified":"2017-06-22T06:03:57","modified_gmt":"2017-06-21T22:03:57","slug":"linux-grub2%e9%85%8d%e7%bd%ae%e7%ae%80%e4%bb%8b","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/uncategorized\/linux-grub2%e9%85%8d%e7%bd%ae%e7%ae%80%e4%bb%8b\/","title":{"rendered":"Linux GRUB2\u914d\u7f6e\u7b80\u4ecb"},"content":{"rendered":"

GRUB<\/strong><\/p>\n

GRUB \u6765\u81ea GRand Unified Bootloader \u7684\u7f29\u5199\u3002\u5b83\u7684\u529f\u80fd\u662f\u5728\u542f\u52a8\u65f6\u4ece BIOS \u63a5\u7ba1\u638c\u63a7\u3001\u52a0\u8f7d\u81ea\u8eab\u3001\u52a0\u8f7d Linux \u5185\u6838\u5230\u5185\u5b58\uff0c\u7136\u540e\u518d\u628a\u6267\u884c\u6743\u4ea4\u7ed9\u5185\u6838\u3002\u4e00\u65e6\u5185\u6838\u5f00\u59cb\u638c\u63a7\uff0cGRUB \u5c31\u5b8c\u6210\u4e86\u5b83\u7684\u4efb\u52a1\uff0c\u4e5f\u5c31\u4e0d\u518d\u9700\u8981\u4e86\u3002<\/p>\n

GRUB \u652f\u6301\u591a\u79cd Linux \u5185\u6838\uff0c\u5e76\u5141\u8bb8\u7528\u6237\u5728\u542f\u52a8\u65f6\u901a\u8fc7\u83dc\u5355\u5728\u5176\u4e2d\u9009\u62e9\u3002\u6211\u53d1\u73b0\u8fd9\u662f\u4e00\u79cd\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\uff0c\u56e0\u4e3a\u6211\u6709\u5f88\u591a\u6b21\u9047\u5230\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u6216\u8005\u7cfb\u7edf\u670d\u52a1\u5728\u7279\u5b9a\u5185\u6838\u7248\u672c\u4e0b\u5931\u8d25\u7684\u95ee\u9898\u3002\u6709\u597d\u51e0\u6b21\uff0c\u5f15\u5bfc\u5230\u4e00\u4e2a\u8f83\u65e7\u7684\u5185\u6838\u65f6\u5c31\u53ef\u4ee5\u907f\u514d\u7c7b\u4f3c\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u4f7f\u7528 yum \u6216 dnf \u8fdb\u884c\u66f4\u65b0\u65f6\u4f1a\u4fdd\u5b58\u4e09\u4e2a\u5185\u6838 – \u6700\u65b0\u7684\u4ee5\u53ca\u4e24\u4e2a\u6bd4\u8f83\u65e7\u7684\u3002\u5728\u88ab\u5305\u7ba1\u7406\u5668\u5220\u9664\u4e4b\u524d\u6240\u4fdd\u7559\u7684\u5185\u6838\u6570\u76ee\u53ef\u4ee5\u5728 \/etc\/dnf\/dnf.conf \u6216 \/etc\/yum.conf \u6587\u4ef6\u4e2d\u914d\u7f6e\u3002\u6211\u901a\u5e38\u628a installonly_limit \u7684\u503c\u4fee\u6539\u4e3a 9 \u4ee5\u4fbf\u4fdd\u7559 9 \u4e2a\u5185\u6838\u3002\u5f53\u6211\u4e0d\u5f97\u4e0d\u6062\u590d\u5230\u4f4e\u51e0\u4e2a\u7248\u672c\u7684\u5185\u6838\u65f6\u8fd9\u975e\u5e38\u6709\u7528\u3002<\/p>\n

GRUB \u83dc\u5355<\/strong><\/p>\n

GRUB \u83dc\u5355\u7684\u529f\u80fd\u662f\u5f53\u9ed8\u8ba4\u7684\u5185\u6838\u4e0d\u662f\u60f3\u8981\u7684\u65f6\uff0c\u5141\u8bb8\u7528\u6237\u4ece\u5df2\u7ecf\u5b89\u88c5\u7684\u5185\u6838\u4e2d\u9009\u62e9\u4e00\u4e2a\u8fdb\u884c\u5f15\u5bfc\u3002\u901a\u8fc7\u4e0a\u4e0b\u7bad\u5934\u952e\u5141\u8bb8\u4f60\u9009\u4e2d\u60f3\u8981\u7684\u5185\u6838\uff0c\u6572\u51fb\u56de\u8f66\u952e\u4f1a\u4f7f\u7528\u9009\u4e2d\u7684\u5185\u6838\u7ee7\u7eed\u5f15\u5bfc\u8fdb\u7a0b\u3002<\/p>\n

GRUB \u83dc\u5355\u4e5f\u63d0\u4f9b\u4e86\u8d85\u65f6\u673a\u5236\uff0c\u56e0\u6b64\u5982\u679c\u7528\u6237\u6ca1\u6709\u505a\u4efb\u4f55\u9009\u62e9\uff0cGRUB \u5c31\u4f1a\u5728\u6ca1\u6709\u7528\u6237\u5e72\u9884\u7684\u60c5\u51b5\u4e0b\u4f7f\u7528\u9ed8\u8ba4\u5185\u6838\u7ee7\u7eed\u5f15\u5bfc\u3002\u6572\u51fb\u952e\u76d8\u4e0a\u9664\u4e86\u56de\u8f66\u952e\u4e4b\u5916\u7684\u4efb\u4f55\u952e\u4f1a\u505c\u6b62\u7ec8\u7aef\u4e0a\u663e\u793a\u7684\u5012\u6570\u8ba1\u65f6\u5668\u3002\u7acb\u5373\u6572\u51fb\u56de\u8f66\u952e\u4f1a\u4f7f\u7528\u9ed8\u8ba4\u5185\u6838\u6216\u8005\u9009\u4e2d\u7684\u5185\u6838\u7ee7\u7eed\u5f15\u5bfc\u8fdb\u7a0b\u3002<\/p>\n

GRUB \u83dc\u5355\u63d0\u4f9b\u4e86\u4e00\u4e2a \u201c\u6551\u63f4rescue\u201d \u5185\u6838\uff0c\u7528\u4e8e\u6545\u969c\u6392\u9664\u6216\u8005\u7531\u4e8e\u67d0\u4e9b\u539f\u56e0\u5bfc\u81f4\u7684\u5e38\u89c4\u5185\u6838\u4e0d\u80fd\u5b8c\u6210\u542f\u52a8\u8fc7\u7a0b\u3002\u4e0d\u5e78\u7684\u662f\uff0c\u8fd9\u4e2a\u6551\u63f4\u5185\u6838\u4e0d\u4f1a\u5f15\u5bfc\u5230\u6551\u63f4\u6a21\u5f0f\u3002\u6587\u7ae0\u540e\u9762\u4f1a\u66f4\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u65b9\u9762\u7684\u4e1c\u897f\u3002<\/p>\n

grub.cfg \u6587\u4ef6<\/strong><\/p>\n

grub.cfg \u6587\u4ef6\u662f GRUB \u914d\u7f6e\u6587\u4ef6\u3002\u5b83\u7531 grub2-mkconfig \u7a0b\u5e8f\u6839\u636e\u7528\u6237\u7684\u914d\u7f6e\u4f7f\u7528\u4e00\u7ec4\u4e3b\u914d\u7f6e\u6587\u4ef6\u4ee5\u53ca grub \u9ed8\u8ba4\u6587\u4ef6\u800c\u751f\u6210\u3002\/boot\/grub2\/grub.cfg \u6587\u4ef6\u5728 Linux \u5b89\u88c5\u65f6\u4f1a\u521d\u6b21\u751f\u6210\uff0c\u5b89\u88c5\u65b0\u5185\u6838\u65f6\u53c8\u4f1a\u91cd\u65b0\u751f\u6210\u3002<\/p>\n

grub.cfg \u6587\u4ef6\u5305\u62ec\u4e86\u7c7b\u4f3c Bash \u811a\u672c\u7684\u4ee3\u7801\u4ee5\u53ca\u4e00\u4e2a\u6309\u7167\u5b89\u88c5\u987a\u5e8f\u6392\u5e8f\u7684\u5df2\u5b89\u88c5\u5185\u6838\u5217\u8868\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u6709 4 \u4e2a\u5df2\u5b89\u88c5\u5185\u6838\uff0c\u6700\u65b0\u7684\u5185\u6838\u7d22\u5f15\u662f 0\uff0c\u524d\u4e00\u4e2a\u5185\u6838\u7d22\u5f15\u662f 1\uff0c\u6700\u65e7\u7684\u5185\u6838\u7d22\u5f15\u662f 3\u3002\u5982\u679c\u4f60\u80fd\u8bbf\u95ee grub.cfg \u6587\u4ef6\uff0c\u4f60\u5e94\u8be5\u53bb\u770b\u770b\u611f\u53d7\u4e00\u4e0b\u5b83\u770b\u8d77\u6765\u662f\u4ec0\u4e48\u6837\u3002grub.cfg \u592a\u5927\u4e5f\u5c31\u6ca1\u6709\u5305\u542b\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\u3002<\/p>\n

GRUB \u914d\u7f6e\u6587\u4ef6<\/strong><\/p>\n

grub.cfg \u7684\u4e3b\u8981\u914d\u7f6e\u6587\u4ef6\u90fd\u5728 \/etc\/grub.d \u76ee\u5f55\u3002\u8be5\u76ee\u5f55\u4e2d\u7684\u6bcf\u4e2a\u6587\u4ef6\u90fd\u5305\u542b\u4e86\u6700\u7ec8\u4f1a\u6574\u5408\u5230 grub.cfg \u6587\u4ef6\u4e2d\u7684 GRUB \u4ee3\u7801\u3002\u8fd9\u4e9b\u914d\u7f6e\u6587\u4ef6\u7684\u547d\u540d\u6a21\u5f0f\u4ee5\u6392\u5e8f\u65b9\u5f0f\u8bbe\u8ba1\uff0c\u8fd9\u4f7f\u5f97\u6700\u7ec8\u7684 grub.cfg \u6587\u4ef6\u53ef\u4ee5\u6309\u6b63\u786e\u7684\u987a\u5e8f\u6574\u5408\u800c\u6210\u3002\u6bcf\u4e2a\u6587\u4ef6\u90fd\u6709\u6ce8\u91ca\u8868\u660e\u8be5\u90e8\u5206\u7684\u5f00\u59cb\u548c\u7ed3\u675f\uff0c\u8fd9\u4e9b\u6ce8\u91ca\u4e5f\u662f\u6700\u7ec8\u7684 grub.cfg \u6587\u4ef6\u7684\u4e00\u90e8\u5206\uff0c\u4ece\u800c\u53ef\u4ee5\u770b\u51fa\u6bcf\u4e2a\u90e8\u5206\u662f\u7531\u54ea\u4e2a\u6587\u4ef6\u751f\u6210\u3002\u5206\u9694\u6ce8\u91ca\u770b\u8d77\u6765\u50cf\u8fd9\u6837\uff1a<\/p>\n

    \n
  1. ###\u00a0BEGIN<\/span>\u00a0\/etc\/grub.d\/10_linux\u00a0###<\/li>\n
  2. ###\u00a0END<\/span>\u00a0\/etc\/grub.d\/10_linux\u00a0###<\/li>\n<\/ol>\n

    \u4e0d\u8981\u4fee\u6539\u8fd9\u4e9b\u6587\u4ef6\uff0c\u9664\u975e\u4f60\u662f\u4e00\u4e2a GRUB \u4e13\u5bb6\u5e76\u660e\u767d\u66f4\u6539\u4f1a\u53d1\u751f\u4ec0\u4e48\u3002\u65e0\u8bba\u5982\u4f55\uff0c\u4fee\u6539 grub.cfg \u6587\u4ef6\u65f6\u4f60\u4e5f\u603b\u5e94\u8be5\u4fdd\u7559\u4e00\u4e2a\u539f\u59cb\u6587\u4ef6\u7684\u5907\u4efd\u3002 40_custom \u548c 41_custom \u8fd9\u4e24\u4e2a\u7279\u522b\u7684\u6587\u4ef6\u7528\u4e8e\u751f\u6210\u7528\u6237\u5bf9 GRUB \u914d\u7f6e\u7684\u4fee\u6539\u3002\u4f60\u4ecd\u7136\u8981\u6ce8\u610f\u5bf9\u8fd9\u4e9b\u6587\u4ef6\u7684\u66f4\u6539\u7684\u540e\u679c\uff0c\u5e76\u4fdd\u5b58\u4e00\u4efd\u539f\u59cb grub.cfg \u6587\u4ef6\u7684\u5907\u4efd\u3002<\/p>\n

    \u4f60\u4e5f\u53ef\u4ee5\u628a\u4f60\u81ea\u5df1\u7684\u6587\u4ef6\u6dfb\u52a0\u5230 \/etc\/grub.d \u76ee\u5f55\u3002\u8fd9\u6837\u505a\u7684\u4e00\u4e2a\u53ef\u80fd\u7684\u539f\u56e0\u662f\u4e3a\u975e Linux \u64cd\u4f5c\u7cfb\u7edf\u6dfb\u52a0\u83dc\u5355\u884c\u3002\u8981\u6ce8\u610f\u9075\u5faa\u547d\u540d\u89c4\u5219\uff0c\u786e\u4fdd\u914d\u7f6e\u6587\u4ef6\u4e2d\u989d\u5916\u7684\u83dc\u5355\u9009\u9879\u521a\u597d\u5728 10_linux \u6761\u76ee\u4e4b\u524d\u6216\u4e4b\u540e\u3002<\/p>\n

    GRUB \u9ed8\u8ba4\u6587\u4ef6<\/strong><\/p>\n

    \u8001\u7248\u672c GRUB \u7684\u914d\u7f6e\u975e\u5e38\u7b80\u5355\u800c\u660e\u4e86\uff0c\u6211\u53ea\u9700\u8981\u4fee\u6539 \/boot\/grub\/grub.conf \u5c31\u53ef\u4ee5\u4e86\u3002\u5bf9\u4e8e\u65b0\u7248\u672c\u7684 GRUB2\uff0c\u6211\u867d\u7136\u8fd8\u53ef\u4ee5\u901a\u8fc7\u66f4\u6539 \/boot\/grub2\/grub.cfg \u6765\u4fee\u6539\uff0c\u4f46\u548c\u8001\u7248\u672c\u7684 GRUB \u76f8\u6bd4\uff0c\u65b0\u7248\u672c\u76f8\u5bf9\u66f4\u52a0\u590d\u6742\u3002\u53e6\u5916\uff0c\u5b89\u88c5\u4e00\u4e2a\u65b0\u5185\u6838\u65f6 grub.cfg \u53ef\u80fd\u4f1a\u88ab\u91cd\u5199\uff0c\u56e0\u6b64\u4efb\u4f55\u4fee\u6539\u90fd\u53ef\u80fd\u6d88\u5931\u3002\u5f53\u7136\uff0cGNU.org \u7684 GRUB \u624b\u518c\u786e\u5b9e\u6709\u8fc7\u76f4\u63a5\u521b\u5efa\u548c\u4fee\u6539 \/boot\/grub2\/grub.cfg \u7684\u8ba8\u8bba\u3002<\/p>\n

    \u4e00\u65e6\u4f60\u660e\u767d\u4e86\u5982\u4f55\u505a\uff0c\u66f4\u6539 GRUB2 \u914d\u7f6e\u5c31\u4f1a\u53d8\u5f97\u975e\u5e38\u7b80\u5355\u3002\u6211\u4e3a\u4e4b\u524d\u7684\u6587\u7ae0\u7814\u7a76 GRUB2 \u7684\u65f6\u5019\u624d\u660e\u767d\u8fd9\u4e2a\u3002\u79d8\u65b9\u5c31\u5728 \/etc\/default \u76ee\u5f55\u91cc\u9762\uff0c\u4e00\u4e2a\u81ea\u7136\u800c\u7136\u79f0\u4e3a grub \u7684\u6587\u4ef6\uff0c\u5b83\u53ef\u4ee5\u901a\u8fc7\u7b80\u5355\u7684\u7ec8\u7aef\u547d\u4ee4\u64cd\u4f5c\u3002\/etc\/default \u76ee\u5f55\u5305\u62ec\u4e86\u4e00\u4e9b\u7c7b\u4f3c Google Chrome\u3001 useradd\u3001 \u548c grub \u7a0b\u5e8f\u7684\u914d\u7f6e\u6587\u4ef6\u3002<\/p>\n

    \/etc\/default\/grub \u6587\u4ef6\u975e\u5e38\u7b80\u5355\u3002\u8fd9\u4e2a grub \u9ed8\u8ba4\u6587\u4ef6\u5df2\u7ecf\u5217\u51fa\u4e86\u4e00\u4e9b\u6709\u6548\u7684\u952e\u503c\u5bf9\u3002\u4f60\u53ef\u4ee5\u7b80\u5355\u5730\u66f4\u6539\u73b0\u6709\u952e\u503c\u6216\u8005\u6dfb\u52a0\u5176\u5b83\u6587\u4ef6\u4e2d\u8fd8\u6ca1\u6709\u7684\u952e\u3002\u4e0b\u9762\u7684\u5217\u8868 1 \u663e\u793a\u4e86\u4e00\u4e2a\u6ca1\u6709\u66f4\u6539\u8fc7\u7684 \/etc\/default\/grub \u6587\u4ef6\u3002<\/p>\n

      \n
    1. GRUB_TIMEOUT=5<\/li>\n
    2. GRUB_DISTRIBUTOR=”$(sed\u00a0‘s,\u00a0release\u00a0.*$,,g’<\/span><\/li>\n
    3. \u00a0\u00a0\u00a0\/etc\/system-release)”<\/li>\n
    4. GRUB_DEFAULT=saved<\/li>\n
    5. GRUB_DISABLE_SUBMENU=true<\/span><\/li>\n
    6. GRUB_TERMINAL_OUTPUT=“console”<\/span><\/li>\n
    7. GRUB_CMDLINE_LINUX=”rd.lvm.lv=fedora_fedora25vm\/root<\/li>\n
    8. \u00a0\u00a0\u00a0rd.lvm.lv=fedora_fedora25vm\/swap<\/li>\n
    9. \u00a0\u00a0\u00a0rd.lvm.lv=fedora_fedora25vm\/usr\u00a0rhgb\u00a0quiet”<\/li>\n
    10. GRUB_DISABLE_RECOVERY=“true”<\/span><\/li>\n<\/ol>\n

      \u5217\u8868 1\uff1aFedora 25 \u4e00\u4e2a\u539f\u59cb grub \u9ed8\u8ba4\u6587\u4ef6\u3002<\/p>\n

      GRUB \u624b\u518c 5.1 \u7ae0\u8282\u5305\u62ec\u4e86\u6240\u6709\u53ef\u4ee5\u6dfb\u52a0\u5230\u8be5 grub \u6587\u4ef6\u7684\u952e\u7684\u4fe1\u606f\u3002\u6211\u53ea\u9700\u8981\u4fee\u6539 grub \u9ed8\u8ba4\u6587\u4ef6\u5df2\u7ecf\u6709\u7684\u4e00\u4e9b\u952e\u503c\u5c31\u591f\u4e86\u3002\u8ba9\u6211\u4eec\u770b\u770b\u8fd9\u4e9b\u952e\u503c\u4ee5\u53ca\u4e00\u4e9b\u5728 grub \u9ed8\u8ba4\u6587\u4ef6\u4e2d\u6ca1\u6709\u51fa\u73b0\u7684\u6bcf\u4e2a\u952e\u7684\u610f\u4e49\u3002<\/p>\n

        \n
      • GRUB_TIMEOUT \u8fd9\u4e2a\u952e\u7684\u503c\u51b3\u5b9a\u4e86\u663e\u793a GRUB \u9009\u62e9\u83dc\u5355\u7684\u65f6\u95f4\u957f\u5ea6\u3002GRUB \u63d0\u4f9b\u4e86\u540c\u65f6\u4fdd\u5b58\u591a\u4e2a\u5b89\u88c5\u5185\u6838\u5e76\u5728\u542f\u52a8\u65f6\u4f7f\u7528 GRUB \u83dc\u5355\u5728\u5176\u4e2d\u9009\u62e9\u7684\u529f\u80fd\u3002\u8fd9\u4e2a\u952e\u7684\u9ed8\u8ba4\u503c\u662f 5 \u79d2\uff0c\u4f46\u6211\u901a\u5e38\u4fee\u6539\u4e3a 10 \u79d2\u4f7f\u5f97\u6709\u66f4\u591a\u65f6\u95f4\u67e5\u770b\u9009\u9879\u5e76\u4f5c\u51fa\u9009\u62e9\u3002<\/li>\n
      • GRUB_DISTRIBUTOR \u8fd9\u4e2a\u952e\u5b9a\u4e49\u4e86\u4e00\u4e2a\u4ece \/etc\/system-release \u6587\u4ef6\u4e2d\u63d0\u53d6\u53d1\u884c\u7248\u672c\u7684 sed \u8868\u8fbe\u5f0f\u3002\u8fd9\u4e2a\u4fe1\u606f\u7528\u4e8e\u751f\u6210\u51fa\u73b0\u5728 GRUB \u83dc\u5355\u4e2d\u7684\u6bcf\u4e2a\u5185\u6838\u53d1\u5e03\u7248\u7684\u6587\u672c\u540d\u79f0\uff0c\u4f8b\u5982 \u201cFedora\u201d \u7b49\u3002\u7531\u4e8e\u4e0d\u540c\u53d1\u884c\u7248\u4e4b\u95f4 system-release \u6587\u4ef6\u7ed3\u6784\u7684\u5dee\u5f02\uff0c\u5728\u4f60\u7684\u7cfb\u7edf\u4e2d\u8fd9\u4e2a sed \u8868\u8fbe\u5f0f\u53ef\u80fd\u6709\u4e9b\u4e0d\u540c\u3002<\/li>\n
      • GRUB_DEFAULT \u51b3\u5b9a\u9ed8\u8ba4\u5f15\u5bfc\u54ea\u4e2a\u5185\u6838\u3002\u5982\u679c\u662f saved\uff0c\u8fd9\u4ee3\u8868\u6700\u65b0\u5185\u6838\u3002\u8fd9\u91cc\u7684\u5176\u5b83\u9009\u9879\u5982\u679c\u662f\u6570\u5b57\u5219\u4ee3\u8868\u4e86 grub.cfg \u4e2d\u5217\u8868\u7684\u7d22\u5f15\u3002\u4f7f\u7528\u7d22\u5f15\u53f7 3\uff0c\u5c31\u4f1a\u603b\u662f\u52a0\u8f7d\u5217\u8868\u4e2d\u7684\u7b2c\u56db\u4e2a\u5185\u6838\uff0c\u5373\u4f7f\u5b89\u88c5\u4e86\u4e00\u4e2a\u65b0\u5185\u6838\u4e4b\u540e\u4e5f\u662f\u3002\u56e0\u6b64\u4f7f\u7528\u7d22\u5f15\u6570\u5b57\u7684\u8bdd\uff0c\u5728\u5b89\u88c5\u4e00\u4e2a\u65b0\u5185\u6838\u540e\u4f1a\u52a0\u8f7d\u4e0d\u540c\u7684\u5185\u6838\u3002\u8981\u786e\u4fdd\u5f15\u5bfc\u7279\u5b9a\u5185\u6838\u7248\u672c\u7684\u552f\u4e00\u65b9\u6cd5\u662f\u8bbe\u7f6e GRUB_DEFAULT \u7684\u503c\u4e3a\u60f3\u8981\u5185\u6838\u7684\u540d\u79f0\uff0c\u4f8b\u5982 4.8.13-300.fc25.x86_64\u3002<\/li>\n
      • GRUB_SAVEDEFAULT \u901a\u5e38\uff0cgrub \u9ed8\u8ba4\u6587\u4ef6\u4e2d\u4e0d\u4f1a\u6307\u5b9a\u8fd9\u4e2a\u9009\u9879\u3002\u5f53\u9009\u62e9\u4e0d\u540c\u5185\u6838\u8fdb\u884c\u5f15\u5bfc\u65f6\uff0c\u6b63\u5e38\u64cd\u4f5c\u4e0b\u8be5\u5185\u6838\u53ea\u4f1a\u542f\u52a8\u4e00\u6b21\u3002\u9ed8\u8ba4\u5185\u6838\u4e0d\u4f1a\u6539\u53d8\u3002\u5f53\u5176\u8bbe\u7f6e\u4e3a true \u5e76\u548c GRUB_DEFAULT=saved \u4e00\u8d77\u4f7f\u7528\u65f6\uff0c\u8fd9\u4e2a\u9009\u9879\u4f1a\u4fdd\u5b58\u4e00\u4e2a\u4e0d\u540c\u5185\u6838\u4f5c\u4e3a\u9ed8\u8ba4\u503c\u3002\u5f53\u9009\u62e9\u4e0d\u540c\u5185\u6838\u8fdb\u884c\u5f15\u5bfc\u65f6\u4f1a\u53d1\u751f\u8fd9\u79cd\u60c5\u51b5\u3002<\/li>\n
      • GRUB_DISABLE_SUBMENU \u4e00\u4e9b\u4eba\u53ef\u80fd\u4f1a\u5e0c\u671b\u4e3a GRUB \u83dc\u5355\u521b\u5efa\u4e00\u4e2a\u5185\u6838\u7684\u5c42\u7ea7\u83dc\u5355\u7ed3\u6784\u3002\u8fd9\u4e2a\u952e\u548c grub.cfg \u4e2d\u4e00\u4e9b\u989d\u5916\u5185\u6838\u914d\u7f6e\u5141\u8bb8\u521b\u5efa\u8fd9\u6837\u7684\u5c42\u7ea7\u7ed3\u6784\u3002\u4f8b\u5982\uff0c\u4e3b\u83dc\u5355\u4e2d\u53ef\u80fd\u6709 production \u548c test \u5b50\u83dc\u5355\uff0c\u6bcf\u4e2a\u5b50\u83dc\u5355\u4e2d\u5305\u62ec\u4e86\u4e00\u4e9b\u5408\u9002\u7684\u5185\u6838\u3002\u8bbe\u7f6e\u5b83\u4e3a false \u53ef\u4ee5\u542f\u7528\u5b50\u83dc\u5355\u3002<\/li>\n
      • GRUB_TERMINAL_OUTPUT \u4e00\u4e9b\u73af\u5883\u4e0b\u53ef\u80fd\u9700\u8981\u6216\u8005\u5fc5\u8981\u5c06\u8f93\u51fa\u91cd\u5b9a\u5411\u5230\u4e00\u4e2a\u4e0d\u540c\u7684\u663e\u793a\u63a7\u5236\u53f0\u6216\u8005\u7ec8\u7aef\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u662f\u628a\u8f93\u51fa\u53d1\u9001\u5230\u9ed8\u8ba4\u7ec8\u7aef\uff0c\u901a\u5e38 console \u7b49\u4ef7\u4e8e Intel \u7cfb\u5217\u4e2a\u4eba\u7535\u8111\u7684\u6807\u51c6\u8f93\u51fa\u3002\u53e6\u4e00\u4e2a\u6709\u7528\u7684\u9009\u62e9\u662f\u5728\u4f7f\u7528\u4e32\u884c\u7ec8\u7aef\u6216\u8005 Integrated Lights Out (ILO) \u7ec8\u7aef\u8fde\u63a5\u7684\u6570\u636e\u4e2d\u5fc3\u6216\u8005\u5b9e\u9a8c\u5ba4\u73af\u5883\u4e2d\u6307\u5b9a serial\u3002<\/li>\n
      • GRUB_TERMINAL_INPUT \u548c GRUB_TERMINAL_OUTPUT \u7c7b\u4f3c\uff0c\u53ef\u80fd\u9700\u8981\u6216\u8005\u5fc5\u8981\u91cd\u5b9a\u5411\u8f93\u5165\u4e3a\u4e32\u884c\u7ec8\u7aef\u6216\u8005 ILO \u8bbe\u5907\u3001\u800c\u4e0d\u662f\u6807\u51c6\u952e\u76d8\u8f93\u5165\u3002<\/li>\n
      • GRUB_CMDLINE_LINUX \u8fd9\u4e2a\u952e\u5305\u62ec\u4e86\u5728\u542f\u52a8\u65f6\u4f1a\u4f20\u9012\u7ed9\u5185\u6838\u7684\u547d\u4ee4\u884c\u53c2\u6570\u3002\u6ce8\u610f\u8fd9\u4e9b\u53c2\u6570\u4f1a\u88ab\u6dfb\u52a0\u5230 grub.cfg \u6240\u6709\u5df2\u5b89\u88c5\u5185\u6838\u7684\u5185\u6838\u884c\u3002\u8fd9\u610f\u5473\u7740\u6240\u6709\u5df2\u5b89\u88c5\u7684\u5185\u6838\u5728\u542f\u52a8\u65f6\u90fd\u4f1a\u6709\u76f8\u540c\u7684\u53c2\u6570\u3002\u6211\u901a\u5e38\u5220\u9664 rhgb \u548c quiet \u53c2\u6570\u4ee5\u4fbf\u6211\u53ef\u4ee5\u770b\u5230\u5f15\u5bfc\u548c\u542f\u52a8\u65f6\u5185\u6838\u548c systemd \u8f93\u51fa\u7684\u6240\u6709\u5185\u6838\u4fe1\u606f\u6d88\u606f\u3002<\/li>\n
      • GRUB_DISABLE_RECOVERY \u5f53\u8fd9\u4e2a\u952e\u7684\u503c\u88ab\u8bbe\u7f6e\u4e3a false\uff0cGRUB \u83dc\u5355\u4e2d\u5c31\u4f1a\u4e3a\u6bcf\u4e2a\u5df2\u5b89\u88c5\u7684\u5185\u6838\u521b\u5efa\u4e00\u4e2a\u6062\u590d\u6761\u76ee\u3002\u5f53\u8bbe\u7f6e\u4e3a true \u65f6\u5c31\u4e0d\u4f1a\u521b\u5efa\u4efb\u4f55\u6062\u590d\u6761\u76ee\u3002\u4f46\u4e0d\u7ba1\u8fd9\u4e2a\u8bbe\u7f6e\u600e\u6837\uff0c\u6700\u540e\u7684\u5185\u6838\u6761\u76ee\u603b\u662f\u4e00\u4e2a rescue \u9009\u9879\u3002\u4e0d\u8fc7\u5728 rescue \u9009\u9879\u4e2d\u6211\u9047\u5230\u4e86\u4e00\u4e2a\u95ee\u9898\uff0c\u4e0b\u9762\u6211\u4f1a\u8be6\u7ec6\u4ecb\u7ecd\u3002<\/li>\n<\/ul>\n

        \u8fd8\u6709\u4e00\u4e9b\u4f60\u53ef\u80fd\u89c9\u5f97\u6709\u7528\u4f46\u6211\u6ca1\u6709\u5728\u8fd9\u91cc\u4ecb\u7ecd\u7684\u952e\u3002\u5b83\u4eec\u7684\u63cf\u8ff0\u53ef\u4ee5\u5728 GRUB \u624b\u518c 2 \u7684 5.1 \u7ae0\u8282\u627e\u5230\u3002<\/p>\n

        \u751f\u6210 grub.cfg<\/strong><\/p>\n

        \u5b8c\u6210\u6240\u9700\u7684\u914d\u7f6e\u4e4b\u540e\uff0c\u5c31\u9700\u8981\u751f\u6210 \/boot\/grub2\/grub.cfg \u6587\u4ef6\u3002\u8fd9\u901a\u8fc7\u4e0b\u9762\u7684\u547d\u4ee4\u5b8c\u6210\u3002<\/p>\n

          \n
        1. grub2-mkconfig\u00a0>\u00a0\/boot\/grub2\/grub.cfg<\/li>\n<\/ol>\n

          \u8fd9\u4e2a\u547d\u4ee4\u6309\u7167\u987a\u5e8f\u4f7f\u7528\u4f4d\u4e8e \/etc\/grub.d \u7684\u914d\u7f6e\u6587\u4ef6\u6784\u5efa grub.cfg \u6587\u4ef6\uff0c\u7136\u540e\u4f7f\u7528 grub \u9ed8\u8ba4\u6587\u4ef6\u7684\u5185\u5bb9\u4fee\u6539\u8f93\u51fa\u4ee5\u4fbf\u83b7\u5f97\u6700\u7ec8\u6240\u9700\u7684\u914d\u7f6e\u3002grub2-mkconfig \u547d\u4ee4\u4f1a\u5c1d\u8bd5\u5b9a\u4f4d\u6240\u6709\u5df2\u5b89\u88c5\u7684\u5185\u6838\u5e76\u5728 grub.cfg \u6587\u4ef6\u7684 10_Linux \u90e8\u5206\u65b0\u5efa\u6761\u76ee\u3002\u5b83\u8fd8\u521b\u5efa\u4e00\u4e2a rescue \u6761\u76ee\u63d0\u4f9b\u4e00\u4e2a\u7528\u4e8e\u4ece Linux \u4e0d\u80fd\u542f\u52a8\u7684\u4e25\u91cd\u95ee\u9898\u4e2d\u6062\u590d\u7684\u65b9\u6cd5\u3002<\/p>\n

          \u5f3a\u70c8\u5efa\u8bae\u4f60\u4e0d\u8981\u624b\u52a8\u7f16\u8f91 grub.cfg \u6587\u4ef6\uff0c\u56e0\u4e3a\u4efb\u4f55\u5bf9\u8be5\u6587\u4ef6\u7684\u76f4\u63a5\u4fee\u6539\u90fd\u4f1a\u5728\u4e0b\u4e00\u6b21\u5b89\u88c5\u65b0\u5185\u6838\u6216\u8005\u624b\u52a8\u8fd0\u884c grub2-mkconfig \u65f6\u88ab\u91cd\u5199\u3002<\/p>\n

          \u95ee\u9898<\/strong><\/p>\n

          \u6211\u9047\u5230\u4e00\u4e2a\u5982\u679c\u6ca1\u6709\u610f\u8bc6\u5230\u5c31\u53ef\u80fd\u5bfc\u81f4\u4e25\u91cd\u540e\u679c\u7684 GRUB2 \u95ee\u9898\u3002\u8fd9\u4e2a\u6551\u63f4\u5185\u6838\u6ca1\u6709\u542f\u52a8\uff0c\u53cd\u800c\u542f\u52a8\u4e86\u53e6\u5916\u4e00\u4e2a\u5185\u6838\u3002\u6211\u53d1\u73b0\u90a3\u662f\u5217\u8868\u4e2d\u7d22\u5f15\u4e3a 1 \u7684\u5185\u6838\uff0c\u4e5f\u5c31\u662f\u5217\u8868\u4e2d\u7684\u7b2c\u4e8c\u4e2a\u5185\u6838\u3002\u989d\u5916\u7684\u6d4b\u8bd5\u53d1\u73b0\u4e0d\u7ba1\u4f7f\u7528\u539f\u59cb\u7684\u8fd8\u662f\u6211\u751f\u6210\u7684 grub.cfg \u914d\u7f6e\u6587\u4ef6\u90fd\u4f1a\u53d1\u751f\u8fd9\u4e2a\u95ee\u9898\u3002\u6211\u5728\u865a\u62df\u673a\u548c\u771f\u5b9e\u786c\u4ef6\u4e0a\u90fd\u5c1d\u8bd5\u8fc7\u800c\u4e14\u90fd\u53d1\u751f\u4e86\u8fd9\u4e2a\u95ee\u9898\u3002\u6211\u53ea\u6d4b\u8bd5\u4e86 Fedora 25\uff0c\u56e0\u6b64\u5176\u5b83 Fedora \u53d1\u884c\u7248\u672c\u53ef\u80fd\u6ca1\u6709\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n

          \u6ce8\u610f\uff0c\u4ece\u6551\u63f4\u5185\u6838\u751f\u6210\u7684 \u201crecovery\u201d \u5185\u6838\u6761\u76ee\u4e0d\u80fd\u5f15\u5bfc\u5230\u7ef4\u62a4\u6a21\u5f0f\u3002<\/p>\n

          \u6211\u63a8\u8350\u5c06 grub \u9ed8\u8ba4\u6587\u4ef6\u4e2d GRUB_DISABLE_RECOVERY \u7684\u503c\u66f4\u6539\u4e3a \u201cfalse\u201d\uff0c\u7136\u540e\u751f\u6210\u4f60\u81ea\u5df1\u7684 grub.cfg\u3002\u8fd9\u4f1a\u5728 GRUB \u83dc\u5355\u4e2d\u4e3a\u6bcf\u4e2a\u5df2\u5b89\u88c5\u7684\u5185\u6838\u751f\u6210\u53ef\u7528\u7684\u6062\u590d\u6761\u76ee\u3002\u8fd9\u4e9b\u6062\u590d\u914d\u7f6e\u80fd\u50cf\u671f\u671b\u90a3\u6837\u5de5\u4f5c\uff0c\u4ece\u800c\u4ece\u90a3\u4e9b\u9700\u8981\u8f93\u5165\u5bc6\u7801\u767b\u5f55\u7684\u5185\u6838\u6761\u76ee\u4e2d\u5f15\u5bfc\u5230\u8fd0\u884c\u7ea7\u522b 1\uff0c\u4e5f\u5c31\u662f\u8fdb\u5165(\u4e0d\u9700\u8981\u5bc6\u7801\u7684)\u5355\u7528\u6237\u7ef4\u62a4\u6a21\u5f0f\u3002\u4f60\u4e5f\u53ef\u4ee5\u6309 Ctrl-D \u7ee7\u7eed\u6b63\u5e38\u7684\u5f15\u5bfc\u8fdb\u5165\u9ed8\u8ba4\u8fd0\u884c\u7ea7\u522b\u3002<\/p>\n

          \u603b\u7ed3<\/strong><\/p>\n

          GRUB \u662f\u5f15\u5bfc Linux \u8ba1\u7b97\u673a\u5230\u53ef\u7528\u72b6\u6001\u8fc7\u7a0b\u7684\u4e00\u7cfb\u5217\u4e8b\u4ef6\u4e2d\uff0c\u53d1\u751f\u5728 BIOS \u4e4b\u540e\u7684\u7b2c\u4e00\u6b65\u3002\u7406\u89e3\u5982\u4f55\u914d\u7f6e GRUB \u5bf9\u4e8e\u6062\u590d\u6216\u8005\u5904\u7406\u591a\u79cd\u7c7b\u578b\u7684\u95ee\u9898\u975e\u5e38\u91cd\u8981\u3002<\/p>\n

          \u8fd9\u4e48\u591a\u5e74\u6765\u6211\u591a\u6b21\u4e0d\u5f97\u4e0d\u5f15\u5bfc\u5230\u6062\u590d\u6216\u8005\u6551\u63f4\u6a21\u5f0f\u4ee5\u4fbf\u89e3\u51b3\u591a\u79cd\u7c7b\u578b\u7684\u95ee\u9898\u3002\u5176\u4e2d\u7684\u4e00\u4e9b\u95ee\u9898\u786e\u5b9e\u662f\u7c7b\u4f3c \/etc\/fstab \u6216\u5176\u5b83\u914d\u7f6e\u6587\u4ef6\u4e2d\u4e0d\u6070\u5f53\u6761\u76ee\u5bfc\u81f4\u7684\u5f15\u5bfc\u95ee\u9898\uff0c\u4e5f\u6709\u4e00\u4e9b\u662f\u7531\u4e8e\u5e94\u7528\u7a0b\u5e8f\u6216\u8005\u7cfb\u7edf\u8f6f\u4ef6\u548c\u6700\u65b0\u7684\u5185\u6838\u4e0d\u517c\u5bb9\u7684\u95ee\u9898\u3002\u786c\u4ef6\u517c\u5bb9\u6027\u95ee\u9898\u4e5f\u53ef\u80fd\u59a8\u788d\u7279\u5b9a\u7684\u5185\u6838\u542f\u52a8\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

          GRUB GRUB \u6765\u81ea GRand Unified Bootloader \u7684\u7f29\u5199\u3002\u5b83\u7684\u529f\u80fd\u662f\u5728\u542f\u52a8\u65f6\u4ece BI … \u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[696,38],"class_list":["post-2356","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-grub2","tag-linux"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2356","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/comments?post=2356"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2356\/revisions"}],"predecessor-version":[{"id":2357,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2356\/revisions\/2357"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=2356"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=2356"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=2356"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}