{"id":73,"date":"2022-02-22T19:08:40","date_gmt":"2022-02-22T19:08:40","guid":{"rendered":"https:\/\/blog.theopenpc.com\/?p=73"},"modified":"2026-07-22T20:37:47","modified_gmt":"2026-07-22T20:37:47","slug":"nfsroot_tftp_embedded","status":"publish","type":"post","link":"https:\/\/blog.theopenpc.com\/index.php\/2022\/02\/22\/nfsroot_tftp_embedded\/","title":{"rendered":"\u7528NFSRoot\u548cTFTP\u542f\u52a8\u4f60\u7684\u5d4c\u5165\u5f0f\u8bbe\u5907"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u4ecb\u7ecd<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u8fd1\u5728\u5b66\u4e60\u5d4c\u5165\u5f0f Linux \u8bbe\u5907\u9a71\u52a8\u5f00\u53d1\u3002\u521a\u5f00\u59cb\u5b66\u4e60\u65f6\uff0c\u4e00\u4e2a\u6bd4\u8f83\u5927\u7684\u75db\u70b9\u662f\uff1a\u603b\u8981\u60f3\u529e\u6cd5\u628a\u7f16\u8bd1\u597d\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\u642c\u5230\u8bbe\u5907\u4e0a\u3002\u5bf9\u4e8e\u5185\u6838\u9a71\u52a8\u6216\u7528\u6237\u6001\u7a0b\u5e8f\u8fd9\u7c7b\u8f83\u5c0f\u7684\u6587\u4ef6\uff0c\u7528 scp \u4e4b\u7c7b\u7684\u5de5\u5177\u5c31\u80fd\u89e3\u51b3\uff1b\u4f46\u5230\u4e86\u5b66\u4e60\u540e\u671f\uff0c\u6d89\u53ca\u5230\u4fee\u6539\u5185\u6838\u6e90\u4ee3\u7801\u3001\u751a\u81f3\u8981\u66ff\u6362 SD \u5361\u4e0a\u7684\u5185\u6838\u955c\u50cf\u65f6\uff0c\u53ef\u7528\u7684\u624b\u6bb5\u5c31\u6bd4\u8f83\u6709\u9650\u4e86\u2014\u2014\u9664\u975e\u4f60\u80fd\u5fcd\u53d7\u6bcf\u6b21\u6539\u5b8c\u4ee3\u7801\u90fd\u628a\u5185\u6838\u91cd\u65b0\u70e7\u5199\u5230 SD \u5361\u6216\u5176\u4ed6\u5b58\u50a8\u4ecb\u8d28\u4e0a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7ecf\u8fc7\u4e00\u756a\u641c\u7d22\uff0c\u6211\u53d1\u73b0\u4e86\u4e00\u79cd\u5f88\u9002\u5408\u5d4c\u5165\u5f0f\u5f00\u53d1\u7684\u542f\u52a8\u65b9\u5f0f\uff1a\u7528 TFTP \u52a0\u8f7d\u5185\u6838\uff0c\u7528 NFSRoot \u6302\u8f7d\u6839\u6587\u4ef6\u7cfb\u7edf\uff08RootFS\uff09\u3002\u8fd9\u79cd\u65b9\u5f0f\u53ef\u4ee5\u5927\u5927\u51cf\u5c11\u628a\u4e8c\u8fdb\u5236\u6587\u4ef6\u62f7\u8d1d\u5230\u5b58\u50a8\u4ecb\u8d28\u7684\u6b21\u6570\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u6211\u5bb6\u91cc\u7684\u7f51\u7edc\u4e3a\u4f8b\uff08\u914d\u7f6e\u5982\u4e0b\u56fe\uff09\uff1a\u6211\u7528\u7b14\u8bb0\u672c\u8fdb\u884c\u5f00\u53d1\uff0c\u7f51\u7edc\u4e2d\u8fd8\u6709\u4e00\u5757\u5d4c\u5165\u5f0f\u5f00\u53d1\u677f\u548c\u4e00\u53f0\u670d\u52a1\u5668\u3002\u670d\u52a1\u5668\u8d70\u6709\u7ebf\u8fde\u63a5\uff0c\u7f51\u7edc\u6bd4\u8f83\u7a33\u5b9a\u3002\u501f\u52a9 NFSRoot \u548c TFTP\uff0c\u6211\u53ef\u4ee5\u628a\u5f00\u53d1\u677f\u7684 RootFS\u3001\u5185\u6838\u955c\u50cf\u548c dtb \u7b49\u6587\u4ef6\u90fd\u653e\u5728\u670d\u52a1\u5668\u4e0a\u3002\u5f00\u53d1\u677f\u4e0a\u7535\u540e\uff0c\u4f1a\u5148\u4ece\u670d\u52a1\u5668\u8bfb\u53d6\u5185\u6838\u5230\u5185\u5b58\u4e2d\u7684\u6307\u5b9a\u5730\u5740\uff0c\u518d\u7528\u5b83\u542f\u52a8\u7cfb\u7edf\uff1b\u5185\u6838\u52a0\u8f7d\u8fc7\u7a0b\u4e2d\uff0c\u53c8\u4f1a\u628a\u670d\u52a1\u5668\u4e0a\u7684 RootFS \u6302\u8f7d\u4e3a\u6839\u76ee\u5f55\uff0c\u5b8c\u6210\u542f\u52a8\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u6837\u7684\u8bbe\u7f6e\u610f\u5473\u7740\uff1a\u5f00\u53d1\u677f\u542f\u52a8\u540e\u7684\u201c\u786c\u76d8\u201d\u5df2\u7ecf\u4e0d\u5728\u5f00\u53d1\u677f\u4e0a\uff0c\u800c\u662f\u5728\u670d\u52a1\u5668\u4e0a\u4e86\uff01\u5982\u679c\u7528\u7ec8\u7aef\u6216 SSH \u8fde\u63a5\u5f00\u53d1\u677f\u5e76\u4fee\u6539\u3001\u4fdd\u5b58\u4e00\u4e9b\u6587\u4ef6\uff0c\u8fd9\u4e9b\u6539\u52a8\u4f1a\u76f4\u63a5\u53cd\u6620\u5230\u670d\u52a1\u5668\u4e0a\uff1b\u53cd\u8fc7\u6765\uff0c\u4f60\u5728\u670d\u52a1\u5668\u4e0a\u5bf9 RootFS \u7684\u6539\u52a8\uff0c\u5f00\u53d1\u677f\u4e5f\u80fd\u5b9e\u65f6\u770b\u5230\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/blog.theopenpc.com\/wp-content\/uploads\/2022\/02\/NFSRoot-TFTP-Boot-1.png?resize=691%2C486&#038;ssl=1\" alt=\"\" class=\"wp-image-76\" width=\"691\" height=\"486\" srcset=\"https:\/\/i0.wp.com\/blog.theopenpc.com\/wp-content\/uploads\/2022\/02\/NFSRoot-TFTP-Boot-1.png?w=980&amp;ssl=1 980w, https:\/\/i0.wp.com\/blog.theopenpc.com\/wp-content\/uploads\/2022\/02\/NFSRoot-TFTP-Boot-1.png?resize=300%2C211&amp;ssl=1 300w, https:\/\/i0.wp.com\/blog.theopenpc.com\/wp-content\/uploads\/2022\/02\/NFSRoot-TFTP-Boot-1.png?resize=768%2C541&amp;ssl=1 768w, https:\/\/i0.wp.com\/blog.theopenpc.com\/wp-content\/uploads\/2022\/02\/NFSRoot-TFTP-Boot-1.png?resize=769%2C541&amp;ssl=1 769w\" sizes=\"auto, (max-width: 691px) 100vw, 691px\" \/><figcaption>\u7f51\u7edc\u914d\u7f6e<\/figcaption><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u6b65\u9aa4<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b89\u88c5\u548c\u8bbe\u7f6e TFTP \u670d\u52a1\u5668<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f88\u591a\u5d4c\u5165\u5f0f bootloader \u90fd\u652f\u6301\u901a\u8fc7 TFTP \u52a0\u8f7d\u5185\u6838\u955c\u50cf\u548c\u8bbe\u5907\u6811\uff0c\u8fd9\u5bf9\u7cfb\u7edf\u548c\u9a71\u52a8\u5f00\u53d1\u4eba\u5458\u6765\u8bf4\u975e\u5e38\u65b9\u4fbf\uff1a\u5f00\u53d1\u8005\u5728\u5f00\u53d1\u673a\u4e0a\u7f16\u8bd1\u597d\u5185\u6838\u548c\u8bbe\u5907\u6811\uff0c\u628a\u4ea7\u7269\u653e\u5230 TFTP \u670d\u52a1\u5668\u4e0a\uff1b\u5728\u8bbe\u5907\u4e00\u4fa7\uff0c\u53ea\u9700\u91cd\u542f\u5e76\u5728 bootloader \u4e2d\u901a\u8fc7 TFTP \u52a0\u8f7d\u65b0\u5185\u6838\uff0c\u800c\u65e0\u9700\u62d4\u4e0b SD \u5361\u91cd\u65b0\u70e7\u5f55\u3002\u90a3\u4e48\u5177\u4f53\u600e\u4e48\u4f7f\u7528 TFTP \u5462\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u63a5\u4e0b\u6765\u7684\u6b65\u9aa4\u5047\u8bbe\u4f60\u4f7f\u7528 Linux \u4f5c\u4e3a\u64cd\u4f5c\u7cfb\u7edf\u3002\u9996\u5148\u5b89\u88c5 TFTP \u670d\u52a1\u5668\uff0cDebian \u7cfb\u7684\u53d1\u884c\u7248\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u547d\u4ee4\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"shell\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"false\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">apt-get install tftpd-hpa\n# \u5b89\u88c5\u5b8c\u6210\u540e\u542f\u52a8TFTP\u670d\u52a1\u5668\nservice tftpd-hpa start<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0d\u540c\u53d1\u884c\u7248\u9ed8\u8ba4\u7684 TFTP \u6839\u76ee\u5f55\u53ef\u80fd\u4e0d\u4e00\u6837\u3002\u8981\u786e\u8ba4 TFTP \u6839\u76ee\u5f55\uff0c\u53ef\u4ee5\u5728 \/etc\/default\/tftpd-hpa \u6587\u4ef6\u91cc\u627e\u5230\u5982\u4e0b\u884c\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"false\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">TFTP_DIRECTORY=\"\/srv\/tftp\"<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 TFTP \u6839\u76ee\u5f55\u4e0b\u521b\u5efa\u4e00\u4e2a\u76ee\u5f55\uff0c\u653e\u5165\u4e3a\u5d4c\u5165\u5f0f\u8bbe\u5907\u7f16\u8bd1\u597d\u7684\u5185\u6838\u4e0e\u8bbe\u5907\u6811\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"false\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/srv\/tftp\n        test_new_kernel\/\n           devicetree.dtb\n           uImage<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8981\u8ba9\u8bbe\u5907\u52a0\u8f7d\u8fd9\u4e2a\u5185\u6838\uff0c\u6211\u4eec\u8fd8\u9700\u8981\u63d0\u4f9b\u4e00\u4e2a\u542f\u52a8\u811a\u672c\u3002\u5047\u8bbe\u5b83\u53eb bootscript_new_kernel\uff0c\u540c\u6837\u653e\u5728 \/srv\/tftp \u76ee\u5f55\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"false\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/srv\/tftp\n        test_new_kernel\/\n           devicetree.dtb\n           uImage\n        bootscript_new_kernel<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5230\u8fd9\u91cc\uff0cTFTP \u5c31\u5927\u81f4\u8bbe\u7f6e\u597d\u4e86\u3002\u63a5\u4e0b\u6765\u6211\u4eec\u770b\u770b bootscript_new_kernel \u91cc\u5230\u5e95\u8981\u5199\u4ec0\u4e48\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">bootscript_new_kernel \u7684\u5185\u5bb9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f00\u53d1\u677f\u7684 bootloader\uff08\u8fd9\u91cc\u4ee5\u6700\u5e38\u89c1\u7684 U-Boot \u4e3a\u4f8b\uff09\u53ef\u4ee5\u901a\u8fc7 TFTP \u628a\u542f\u52a8\u811a\u672c\u4e0b\u8f7d\u5230\u5185\u5b58\u5e76\u6267\u884c\u3002\u6211\u4eec\u5148\u5199\u4e00\u4e2a\u811a\u672c\u6e90\u6587\u4ef6\uff0c\u8bb0\u4f5c bootscript_new_kernel.txt\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"shell\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"false\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u670d\u52a1\u5668\uff08TFTP\/NFS\uff09\u7684IP\u5730\u5740\u548c\u5f00\u53d1\u677f\u81ea\u5df1\u7684IP\u5730\u5740\nsetenv serverip 192.168.1.100\nsetenv ipaddr 192.168.1.150\n\n# \u901a\u8fc7TFTP\u628a\u5185\u6838\u548c\u8bbe\u5907\u6811\u4e0b\u8f7d\u5230\u5185\u5b58\ntftpboot ${kernel_addr_r} test_new_kernel\/uImage\ntftpboot ${fdt_addr_r} test_new_kernel\/devicetree.dtb\n\n# \u544a\u8bc9\u5185\u6838\uff1a\u6839\u6587\u4ef6\u7cfb\u7edf\u5728NFS\u4e0a\nsetenv bootargs console=ttyS0,115200 root=\/dev\/nfs rw nfsroot=${serverip}:\/srv\/nfs\/rootfs,vers=3,tcp ip=dhcp\n\n# \u542f\u52a8\u5185\u6838\nbootm ${kernel_addr_r} - ${fdt_addr_r}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6709\u51e0\u4e2a\u5730\u65b9\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>kernel_addr_r \u548c fdt_addr_r \u662f U-Boot \u9884\u5b9a\u4e49\u7684\u5185\u5b58\u52a0\u8f7d\u5730\u5740\uff0c\u4e0d\u540c\u5f00\u53d1\u677f\u7684\u9ed8\u8ba4\u503c\u4e0d\u4e00\u6837\uff0c\u53ef\u4ee5\u5728 U-Boot \u547d\u4ee4\u884c\u91cc\u7528 printenv \u786e\u8ba4\u3002<\/li>\n\n\n\n<li>root=\/dev\/nfs \u5e76\u4e0d\u662f\u4e00\u4e2a\u771f\u5b9e\u5b58\u5728\u7684\u8bbe\u5907\u8282\u70b9\uff0c\u5b83\u53ea\u662f\u544a\u8bc9\u5185\u6838\uff1a\u6839\u6587\u4ef6\u7cfb\u7edf\u8d70 NFS\uff0c\u771f\u6b63\u7684\u670d\u52a1\u5668\u5730\u5740\u548c\u8def\u5f84\u7531 nfsroot= \u53c2\u6570\u6307\u5b9a\u3002<\/li>\n\n\n\n<li>ip=dhcp \u8ba9\u5185\u6838\u5728\u6302\u8f7d NFS \u4e4b\u524d\u81ea\u5df1\u901a\u8fc7 DHCP \u83b7\u53d6 IP\u3002\u5982\u679c\u7f51\u7edc\u91cc\u6ca1\u6709 DHCP \u670d\u52a1\u5668\uff0c\u53ef\u4ee5\u6539\u6210\u9759\u6001\u5f62\u5f0f\uff1aip=&lt;\u5f00\u53d1\u677fIP&gt;:&lt;\u670d\u52a1\u5668IP&gt;:&lt;\u7f51\u5173&gt;:&lt;\u5b50\u7f51\u63a9\u7801&gt;::eth0:off\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u4f60\u7684\u677f\u5b50\u7528\u7684\u662f zImage \u6216 Image \u800c\u4e0d\u662f uImage\uff0c\u628a\u6700\u540e\u7684 bootm \u6362\u6210 bootz \u6216 booti \u5373\u53ef\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">U-Boot \u4e0d\u80fd\u76f4\u63a5\u6267\u884c\u6587\u672c\u6587\u4ef6\uff0c\u9700\u8981\u7528\u5b83\u81ea\u5e26\u7684 mkimage \u5de5\u5177\u628a\u811a\u672c\u6253\u5305\u6210\u955c\u50cf\uff0c\u8f93\u51fa\u76f4\u63a5\u653e\u8fdb TFTP \u6839\u76ee\u5f55\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"shell\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"false\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">mkimage -T script -C none -n \"netboot\" -d bootscript_new_kernel.txt \/srv\/tftp\/bootscript_new_kernel<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e4b\u540e\u7528\u4e32\u53e3\u8fde\u4e0a\u5f00\u53d1\u677f\uff0c\u5728 U-Boot \u547d\u4ee4\u884c\u91cc\u53ea\u9700\u8981\u4e24\u6761\u547d\u4ee4\u5c31\u53ef\u4ee5\u4ece\u7f51\u7edc\u542f\u52a8\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"shell\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"false\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">tftpboot ${scriptaddr} bootscript_new_kernel\nsource ${scriptaddr}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u4e0d\u60f3\u6bcf\u6b21\u90fd\u624b\u52a8\u8f93\u5165\uff0c\u53ef\u4ee5\u628a\u8fd9\u4e24\u6761\u547d\u4ee4\u5b58\u8fdb U-Boot \u7684 bootcmd \u73af\u5883\u53d8\u91cf\u5e76 saveenv\uff0c\u8fd9\u6837\u5f00\u53d1\u677f\u4e00\u4e0a\u7535\u5c31\u4f1a\u81ea\u52a8\u4ece\u7f51\u7edc\u542f\u52a8\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b89\u88c5\u548c\u8bbe\u7f6e NFS \u670d\u52a1\u5668<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5185\u6838\u80fd\u901a\u8fc7 TFTP \u52a0\u8f7d\u4e86\uff0c\u4f46\u4ec5\u4ec5\u6709\u5185\u6838\uff0c\u5d4c\u5165\u5f0f\u8bbe\u5907\u8fd8\u662f\u6ca1\u529e\u6cd5\u5b8c\u6210\u542f\u52a8\u7684\u2014\u2014\u5185\u6838\u8d77\u6765\u4e4b\u540e\uff0c\u8fd8\u9700\u8981\u6839\u6587\u4ef6\u7cfb\u7edf\u548c\u542f\u52a8\u7a0b\u5e8f\uff08init\uff09\u3002\u73b0\u5728\u6211\u4eec\u5728\u670d\u52a1\u5668\u4e0a\u628a NFS \u670d\u52a1\u642d\u8d77\u6765\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"shell\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"false\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">apt-get install nfs-kernel-server<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u7136\u540e\u51c6\u5907\u4e00\u4efd\u6839\u6587\u4ef6\u7cfb\u7edf\u3002\u5b83\u53ef\u4ee5\u76f4\u63a5\u4ece\u4f60\u73b0\u6709\u7684 SD \u5361\u7cfb\u7edf\u5206\u533a\u62f7\u8d1d\u51fa\u6765\uff0c\u4e5f\u53ef\u4ee5\u662f Buildroot\/Yocto \u7f16\u8bd1\u4ea7\u51fa\u7684 rootfs\uff0c\u6216\u8005 debootstrap \u751f\u6210\u7684\u6700\u5c0f\u7cfb\u7edf\u3002\u5047\u8bbe\u6211\u4eec\u628a\u5b83\u653e\u5728 \/srv\/nfs\/rootfs\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"shell\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"false\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">mkdir -p \/srv\/nfs\/rootfs\n# \u4f8b\u5982\u4eceSD\u5361\u62f7\u8d1d\u3002\u6ce8\u610f\u7528 -a \u4fdd\u7559\u6743\u9650\u3001\u5c5e\u4e3b\u548c\u7b26\u53f7\u94fe\u63a5\ncp -a \/media\/sdcard-rootfs\/. \/srv\/nfs\/rootfs\/<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u63a5\u7740\u628a\u8fd9\u4e2a\u76ee\u5f55\u5bfc\u51fa\u7ed9\u5f00\u53d1\u677f\u3002\u7f16\u8f91 \/etc\/exports\uff0c\u52a0\u5165\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"false\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/srv\/nfs\/rootfs 192.168.1.0\/24(rw,sync,no_root_squash,no_subtree_check)<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e2d no_root_squash \u5f88\u91cd\u8981\uff1a\u5f00\u53d1\u677f\u4e0a\u7684 init \u548c\u5404\u79cd\u7cfb\u7edf\u670d\u52a1\u90fd\u662f\u4ee5 root \u8eab\u4efd\u8fd0\u884c\u7684\uff0c\u5982\u679c NFS \u628a root \u6620\u5c04\u6210 nobody\uff08\u9ed8\u8ba4\u884c\u4e3a\uff09\uff0c\u7cfb\u7edf\u4f1a\u56e0\u4e3a\u6743\u9650\u95ee\u9898\u8d77\u4e0d\u6765\u3002\u5f53\u7136\uff0c\u8fd9\u4e2a\u9009\u9879\u4e5f\u610f\u5473\u7740\u8fd9\u4e2a\u7f51\u6bb5\u91cc\u7684\u4efb\u4f55\u673a\u5668\u90fd\u80fd\u4ee5 root \u8eab\u4efd\u6539\u5199\u8fd9\u4efd rootfs\uff0c\u6240\u4ee5\u53ea\u5efa\u8bae\u5728\u5bb6\u91cc\u6216\u5b9e\u9a8c\u5ba4\u7684\u5185\u7f51\u4f7f\u7528\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8ba9\u5bfc\u51fa\u914d\u7f6e\u751f\u6548\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"shell\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"false\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">exportfs -ra\nservice nfs-kernel-server restart\n# \u786e\u8ba4\u5bfc\u51fa\u6210\u529f\nshowmount -e localhost<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u5185\u6838\u9700\u8981\u7684\u914d\u7f6e<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8981\u8ba9\u5185\u6838\u80fd\u628a NFS \u6302\u8f7d\u4e3a\u6839\u6587\u4ef6\u7cfb\u7edf\uff0c\u7f16\u8bd1\u5185\u6838\u65f6\u4e0b\u9762\u51e0\u4e2a\u9009\u9879\u5fc5\u987b\u76f4\u63a5\u7f16\u8bd1\u8fdb\u5185\u6838\uff08=y\uff0c\u4e0d\u80fd\u7f16\u8bd1\u6210\u6a21\u5757\u2014\u2014\u56e0\u4e3a\u6302\u8f7d\u6839\u6587\u4ef6\u7cfb\u7edf\u7684\u65f6\u5019\uff0c\u8fd8\u6ca1\u6709\u5730\u65b9\u53ef\u4ee5\u52a0\u8f7d\u6a21\u5757\uff09\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"false\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">CONFIG_NFS_FS=y\nCONFIG_ROOT_NFS=y\nCONFIG_IP_PNP=y\nCONFIG_IP_PNP_DHCP=y<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u53e6\u5916\uff0c\u4f60\u7684\u7f51\u5361\u9a71\u52a8\u540c\u6837\u5fc5\u987b\u662f =y\u3002\u5927\u90e8\u5206\u5f00\u53d1\u677f\u5b98\u65b9\u7684 defconfig \u5df2\u7ecf\u628a\u8fd9\u4e9b\u90fd\u6253\u5f00\u4e86\uff0c\u4f46\u5982\u679c\u542f\u52a8\u65f6\u5361\u5728 \u201cVFS: Unable to mount root fs via NFS\u201d\uff0c\u53ef\u4ee5\u5148\u56de\u6765\u68c0\u67e5\u8fd9\u51e0\u9879\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u628a\u5b83\u4eec\u4e32\u8d77\u6765<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u5207\u5c31\u7eea\u540e\uff0c\u6574\u4e2a\u542f\u52a8\u6d41\u7a0b\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5f00\u53d1\u677f\u4e0a\u7535\uff0cU-Boot \u901a\u8fc7 TFTP \u4e0b\u8f7d\u5e76\u6267\u884c bootscript_new_kernel\uff1b<\/li>\n\n\n\n<li>\u811a\u672c\u901a\u8fc7 TFTP \u628a uImage \u548c devicetree.dtb \u4e0b\u8f7d\u5230\u5185\u5b58\uff0c\u5e76\u5e26\u7740 nfsroot \u53c2\u6570\u542f\u52a8\u5185\u6838\uff1b<\/li>\n\n\n\n<li>\u5185\u6838\u901a\u8fc7 DHCP \u62ff\u5230 IP\uff0c\u628a\u670d\u52a1\u5668\u4e0a\u7684 \/srv\/nfs\/rootfs \u6302\u8f7d\u4e3a\u6839\u76ee\u5f55\uff0c\u6267\u884c\u5176\u4e2d\u7684 init\uff0c\u7cfb\u7edf\u542f\u52a8\u5b8c\u6210\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e4b\u540e\u7684\u5f00\u53d1\u5c31\u8212\u670d\u591a\u4e86\uff1a\u6539\u5b8c\u5185\u6838\uff0c\u628a\u65b0\u7684 uImage \u548c dtb \u62f7\u8fdb \/srv\/tftp\/test_new_kernel\/\uff0c\u91cd\u542f\u5f00\u53d1\u677f\u5373\u53ef\uff1b\u6539\u9a71\u52a8\u6a21\u5757\u6216\u5e94\u7528\u7a0b\u5e8f\uff0c\u76f4\u63a5\u628a\u7f16\u8bd1\u4ea7\u7269\u62f7\u8fdb \/srv\/nfs\/rootfs \u7684\u5bf9\u5e94\u76ee\u5f55\uff0c\u751a\u81f3\u8fde\u91cd\u542f\u90fd\u4e0d\u7528\u3002\u6574\u4e2a\u8fc7\u7a0b\u518d\u4e5f\u4e0d\u9700\u8981\u78b0 SD \u5361\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u603b\u7ed3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">NFSRoot + TFTP \u628a\u300c\u7f16\u8bd1\u2014\u62d4\u5361\u2014\u70e7\u5f55\u2014\u63d2\u5361\u2014\u542f\u52a8\u300d\u7684\u5faa\u73af\u7f29\u77ed\u6210\u4e86\u300c\u7f16\u8bd1\u2014\u62f7\u8d1d\u2014\u91cd\u542f\u300d\uff0c\u5bf9\u9700\u8981\u9891\u7e41\u4fee\u6539\u5185\u6838\u548c\u9a71\u52a8\u7684\u5d4c\u5165\u5f0f\u5f00\u53d1\u6765\u8bf4\uff0c\u662f\u4e00\u6b21\u914d\u7f6e\u3001\u957f\u671f\u53d7\u76ca\u7684\u8bbe\u7f6e\u3002\u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u5bf9\u4f60\u6709\u5e2e\u52a9\uff01<\/p>\n\n","protected":false},"excerpt":{"rendered":"<p>\u4ecb\u7ecd \u6700\u8fd1\u5728\u5b66\u4e60\u5d4c\u5165\u5f0f Linux \u8bbe\u5907\u9a71\u52a8\u5f00\u53d1\u3002\u521a\u5f00\u59cb\u5b66\u4e60\u65f6\uff0c\u4e00\u4e2a\u6bd4\u8f83\u5927\u7684\u75db\u70b9\u662f\uff1a\u603b\u8981\u60f3\u529e\u6cd5\u628a\u7f16\u8bd1\u597d\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\u642c\u5230\u8bbe\u5907\u4e0a\u3002\u5bf9\u4e8e\u5185\u6838\u9a71\u52a8\u6216\u7528\u6237\u6001\u7a0b\u5e8f\u8fd9\u7c7b\u8f83\u5c0f\u7684\u6587\u4ef6\uff0c\u7528 scp \u4e4b\u7c7b\u7684\u5de5\u5177\u5c31\u80fd\u89e3\u51b3\uff1b\u4f46\u5230\u4e86\u5b66\u4e60\u540e\u671f\uff0c\u6d89\u53ca\u5230\u4fee\u6539\u5185\u6838\u6e90\u4ee3\u7801\u3001\u751a\u81f3\u8981\u66ff\u6362 SD \u5361\u4e0a\u7684\u5185\u6838\u955c\u50cf\u65f6\uff0c\u53ef\u7528\u7684\u624b\u6bb5\u5c31\u6bd4\u8f83\u6709\u9650\u4e86\u2014\u2014\u9664\u975e\u4f60\u80fd\u5fcd\u53d7\u6bcf\u6b21\u6539\u5b8c\u4ee3\u7801\u90fd\u628a\u5185\u6838\u91cd\u65b0\u70e7\u5199\u5230 SD \u5361\u6216\u5176\u4ed6\u5b58\u50a8\u4ecb\u8d28\u4e0a\u3002 \u7ecf\u8fc7\u4e00\u756a\u641c\u7d22\uff0c\u6211\u53d1\u73b0\u4e86\u4e00\u79cd\u5f88\u9002\u5408\u5d4c\u5165\u5f0f\u5f00\u53d1\u7684\u542f\u52a8\u65b9\u5f0f\uff1a\u7528 TFTP \u52a0\u8f7d\u5185\u6838\uff0c\u7528 NFSRoot \u6302\u8f7d\u6839\u6587\u4ef6\u7cfb\u7edf\uff08RootFS\uff09\u3002\u8fd9\u79cd\u65b9\u5f0f\u53ef\u4ee5\u5927\u5927\u51cf\u5c11\u628a\u4e8c\u8fdb\u5236\u6587\u4ef6\u62f7\u8d1d\u5230\u5b58\u50a8\u4ecb\u8d28\u7684\u6b21\u6570\u3002 \u4ee5\u6211\u5bb6\u91cc\u7684\u7f51\u7edc\u4e3a\u4f8b\uff08\u914d\u7f6e\u5982\u4e0b\u56fe\uff09\uff1a\u6211\u7528\u7b14\u8bb0\u672c\u8fdb\u884c\u5f00\u53d1\uff0c\u7f51\u7edc\u4e2d\u8fd8\u6709\u4e00\u5757\u5d4c\u5165\u5f0f\u5f00\u53d1\u677f\u548c\u4e00\u53f0\u670d\u52a1\u5668\u3002\u670d\u52a1\u5668\u8d70\u6709\u7ebf\u8fde\u63a5\uff0c\u7f51\u7edc\u6bd4\u8f83\u7a33\u5b9a\u3002\u501f\u52a9 NFSRoot \u548c TFTP\uff0c\u6211\u53ef\u4ee5\u628a\u5f00\u53d1\u677f\u7684 RootFS\u3001\u5185\u6838\u955c\u50cf\u548c dtb \u7b49\u6587\u4ef6\u90fd\u653e\u5728\u670d\u52a1\u5668\u4e0a\u3002\u5f00\u53d1\u677f\u4e0a\u7535\u540e\uff0c\u4f1a\u5148\u4ece\u670d\u52a1\u5668\u8bfb\u53d6\u5185\u6838\u5230\u5185\u5b58\u4e2d\u7684\u6307\u5b9a\u5730\u5740\uff0c\u518d\u7528\u5b83\u542f\u52a8\u7cfb\u7edf\uff1b\u5185\u6838\u52a0\u8f7d\u8fc7\u7a0b\u4e2d\uff0c\u53c8\u4f1a\u628a\u670d\u52a1\u5668\u4e0a\u7684 RootFS \u6302\u8f7d\u4e3a\u6839\u76ee\u5f55\uff0c\u5b8c\u6210\u542f\u52a8\u3002 \u8fd9\u6837\u7684\u8bbe\u7f6e\u610f\u5473\u7740\uff1a\u5f00\u53d1\u677f\u542f\u52a8\u540e\u7684\u201c\u786c\u76d8\u201d\u5df2\u7ecf\u4e0d\u5728\u5f00\u53d1\u677f\u4e0a\uff0c\u800c\u662f\u5728\u670d\u52a1\u5668\u4e0a\u4e86\uff01\u5982\u679c\u7528\u7ec8\u7aef\u6216&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[1],"tags":[],"class_list":["post-73","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack-related-posts":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/blog.theopenpc.com\/index.php\/wp-json\/wp\/v2\/posts\/73","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.theopenpc.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.theopenpc.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.theopenpc.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.theopenpc.com\/index.php\/wp-json\/wp\/v2\/comments?post=73"}],"version-history":[{"count":5,"href":"https:\/\/blog.theopenpc.com\/index.php\/wp-json\/wp\/v2\/posts\/73\/revisions"}],"predecessor-version":[{"id":88,"href":"https:\/\/blog.theopenpc.com\/index.php\/wp-json\/wp\/v2\/posts\/73\/revisions\/88"}],"wp:attachment":[{"href":"https:\/\/blog.theopenpc.com\/index.php\/wp-json\/wp\/v2\/media?parent=73"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.theopenpc.com\/index.php\/wp-json\/wp\/v2\/categories?post=73"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.theopenpc.com\/index.php\/wp-json\/wp\/v2\/tags?post=73"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}