{"id":63207,"date":"2025-04-29T13:02:27","date_gmt":"2025-04-29T05:02:27","guid":{"rendered":"https:\/\/fwq.ai\/blog\/63207\/"},"modified":"2025-04-29T13:02:27","modified_gmt":"2025-04-29T05:02:27","slug":"%e6%b7%b1%e5%85%a5%e6%8e%a2%e8%ae%a8linux-ext2%e6%96%87%e4%bb%b6%e7%b3%bb%e7%bb%9f%e7%9a%84%e7%89%a9%e7%90%86%e5%ad%98%e5%82%a8%e7%bb%93%e6%9e%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/63207\/","title":{"rendered":"\u6df1\u5165\u63a2\u8ba8Linux ext2\u6587\u4ef6\u7cfb\u7edf\u7684\u7269\u7406\u5b58\u50a8\u7ed3\u6784"},"content":{"rendered":"

\"\u6df1\u5165\u63a2\u8ba8Linux<\/p>\n

Linux ext2\u6587\u4ef6\u7cfb\u7edf\u662f\u4e00\u79cd\u5728\u5927\u90e8\u5206Linux\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u4f7f\u7528\u7684\u6587\u4ef6\u7cfb\u7edf\uff0c\u5b83\u91c7\u7528\u4e86\u4e00\u79cd\u9ad8\u6548\u7684\u78c1\u76d8\u5b58\u50a8\u7ed3\u6784\u6765\u7ba1\u7406\u6587\u4ef6\u548c\u76ee\u5f55\u7684\u5b58\u50a8\u3002\u5728\u6df1\u5165\u63a2\u8ba8Linux ext2\u6587\u4ef6\u7cfb\u7edf\u7684\u7269\u7406\u5b58\u50a8\u7ed3\u6784\u4e4b\u524d\uff0c\u6211\u4eec\u9996\u5148\u9700\u8981\u4e86\u89e3\u4e00\u4e9b\u57fa\u672c\u6982\u5ff5\u3002<\/p>\n

\u5728ext2\u6587\u4ef6\u7cfb\u7edf\u4e2d\uff0c\u6570\u636e\u5b58\u50a8\u5728\u6570\u636e\u5757\uff08block\uff09\u4e2d\uff0c\u6570\u636e\u5757\u662f\u6587\u4ef6\u7cfb\u7edf\u4e2d\u6700\u5c0f\u7684\u53ef\u5206\u914d\u5355\u4f4d\u3002\u6bcf\u4e2a\u6570\u636e\u5757\u6709\u56fa\u5b9a\u7684\u5927\u5c0f\uff0c\u901a\u5e38\u4e3a1KB\u30012KB\u62164KB\u3002\u6587\u4ef6\u7cfb\u7edf\u8fd8\u5c06\u78c1\u76d8\u4e0a\u7684\u6570\u636e\u5757\u5212\u5206\u4e3a\u7ec4\uff08group\uff09\uff0c\u6bcf\u4e2a\u7ec4\u5305\u542b\u82e5\u5e72\u4e2a\u6570\u636e\u5757\uff0c\u5e76\u7531\u4e00\u4e2a\u7ec4\u63cf\u8ff0\u7b26\uff08group descriptor\uff09\u6765\u63cf\u8ff0\u3002<\/p>\n

\u6bcf\u4e2a\u7ec4\u90fd\u6709\u4e00\u4e2a\u7ec4\u63cf\u8ff0\u7b26\uff0c\u7ec4\u63cf\u8ff0\u7b26\u5305\u542b\u4e00\u4e9b\u91cd\u8981\u7684\u4fe1\u606f\uff0c\u6bd4\u5982\u7ec4\u4e2d\u6709\u591a\u5c11\u4e2a\u6570\u636e\u5757\u3001\u7d22\u5f15\u8282\u70b9\uff08inode\uff09\u7684\u8d77\u59cb\u4f4d\u7f6e\u7b49\u3002\u7d22\u5f15\u8282\u70b9\u662fext2\u6587\u4ef6\u7cfb\u7edf\u4e2d\u7528\u6765\u63cf\u8ff0\u6587\u4ef6\u548c\u76ee\u5f55\u5c5e\u6027\u7684\u6570\u636e\u7ed3\u6784\u3002<\/p>\n

\u63a5\u4e0b\u6765\u6211\u4eec\u6765\u6df1\u5165\u63a2\u8ba8Linux ext2\u6587\u4ef6\u7cfb\u7edf\u7684\u7269\u7406\u5b58\u50a8\u7ed3\u6784\uff0c\u5e76\u9644\u4e0a\u4e00\u4e9b\u4ee3\u7801\u793a\u4f8b\u4ee5\u5e2e\u52a9\u66f4\u597d\u5730\u7406\u89e3\u3002<\/p>\n

\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u6253\u5f00\u4e00\u4e2aLinux\u7ec8\u7aef\uff0c\u5e76\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u521b\u5efa\u4e00\u4e2a\u65b0\u7684ext2\u6587\u4ef6\u7cfb\u7edf\uff1a<\/p>\n

mkfs.ext2 \/dev\/sda1<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u8fd9\u5c06\u5728\u8bbe\u5907\/dev\/sda1\u4e0a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684ext2\u6587\u4ef6\u7cfb\u7edf\u3002<\/p>\n
\u63a5\u7740\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u6302\u8f7d\u8fd9\u4e2a\u65b0\u521b\u5efa\u7684ext2\u6587\u4ef6\u7cfb\u7edf\uff1a<\/p>\n
mkdir \/mnt\/ext2\nmount \/dev\/sda1 \/mnt\/ext2<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u73b0\u5728\u6211\u4eec\u5df2\u7ecf\u6210\u529f\u6302\u8f7d\u4e86\u8fd9\u4e2aext2\u6587\u4ef6\u7cfb\u7edf\uff0c\u4e0b\u9762\u6211\u4eec\u6765\u67e5\u770b\u6587\u4ef6\u7cfb\u7edf\u7684\u7269\u7406\u5b58\u50a8\u7ed3\u6784\u3002<\/p>\n
\u9996\u5148\uff0c\u6211\u4eec\u6765\u67e5\u770b\u7ec4\u63cf\u8ff0\u7b26\u8868\u7684\u7ed3\u6784\u3002\u6bcf\u4e2a\u7ec4\u63cf\u8ff0\u7b26\u7684\u5927\u5c0f\u4e3a32\u5b57\u8282\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u4e9b\u5173\u952e\u4fe1\u606f\uff0c\u6bd4\u5982\u7ec4\u4e2d\u7684\u5757\u6570\u3001\u7a7a\u95f2\u5757\u6570\u3001\u7d22\u5f15\u8282\u70b9\u6570\u7b49\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684C\u8bed\u8a00\u793a\u4f8b\u4ee3\u7801\uff0c\u7528\u6765\u8bfb\u53d6\u7ec4\u63cf\u8ff0\u7b26\u8868\uff1a<\/p>\n
#include <stdio.h>\n#include <unistd.h>\n#include <fcntl.h>\n#include <sys>\n#include <sys>\n\n#define BLOCK_SIZE 1024\n#define GROUP_DESC_SIZE 32\n\nint main() {\n    int fd;\n    char buf[BLOCK_SIZE];\n    \n    fd = open(\"\/dev\/sda1\", O_RDONLY);\n    if(fd == -1) {\n        perror(\"open\");\n        return 1;\n    }\n    \n    lseek(fd, BLOCK_SIZE * 2, SEEK_SET); \/\/ Seek to the location of the group descriptor table\n    \n    read(fd, buf, GROUP_DESC_SIZE); \/\/ Read the first group descriptor\n    \n    for(int i = 0; i <p>\u8fd9\u6bb5\u4ee3\u7801\u901a\u8fc7\u6253\u5f00\/dev\/sda1\u8bbe\u5907\u5e76\u5728\u7b2c2\u4e2a\u6570\u636e\u5757\uff08block\uff09\u5904\u627e\u5230\u7ec4\u63cf\u8ff0\u7b26\u8868\uff0c\u5e76\u8bfb\u53d6\u7b2c\u4e00\u4e2a\u7ec4\u63cf\u8ff0\u7b26\u7684\u5185\u5bb9\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8fd0\u884c\u8fd9\u6bb5\u4ee3\u7801\u6765\u67e5\u770b\u7ec4\u63cf\u8ff0\u7b26\u8868\u7684\u4fe1\u606f\u3002<\/p>\n<p>\u53e6\u5916\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u67e5\u770b\u7d22\u5f15\u8282\u70b9\u7684\u7ed3\u6784\u3002\u7d22\u5f15\u8282\u70b9\u4e5f\u6709\u56fa\u5b9a\u7684\u5927\u5c0f\uff0c\u901a\u5e38\u4e3a128\u5b57\u8282\u6216256\u5b57\u8282\uff0c\u7528\u6765\u63cf\u8ff0\u6587\u4ef6\u548c\u76ee\u5f55\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684C\u8bed\u8a00\u793a\u4f8b\u4ee3\u7801\uff0c\u7528\u6765\u8bfb\u53d6\u7d22\u5f15\u8282\u70b9\u7684\u5185\u5bb9\uff1a<\/p>\n<pre class=\"brush:c;toolbar:false;\">#include <stdio.h>\n#include <unistd.h>\n#include <fcntl.h>\n#include <sys>\n#include <sys>\n\n#define BLOCK_SIZE 1024\n#define INODE_SIZE 128\n\nint main() {\n    int fd;\n    char buf[BLOCK_SIZE];\n    \n    fd = open(\"\/dev\/sda1\", O_RDONLY);\n    if(fd == -1) {\n        perror(\"open\");\n        return 1;\n    }\n    \n    lseek(fd, BLOCK_SIZE * 3, SEEK_SET); \/\/ Seek to the location of the first inode block\n    \n    read(fd, buf, BLOCK_SIZE); \/\/ Read the entire first inode block\n    \n    for(int i = 0; i <p>\u8fd9\u6bb5\u4ee3\u7801\u901a\u8fc7\u6253\u5f00\/dev\/sda1\u8bbe\u5907\u5e76\u5728\u7b2c3\u4e2a\u6570\u636e\u5757\uff08block\uff09\u5904\u627e\u5230\u7b2c\u4e00\u4e2a\u7d22\u5f15\u8282\u70b9\u5757\uff0c\u5e76\u8bfb\u53d6\u5176\u5185\u5bb9\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8fd0\u884c\u8fd9\u6bb5\u4ee3\u7801\u6765\u67e5\u770b\u7d22\u5f15\u8282\u70b9\u7684\u7ed3\u6784\u3002<\/p>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u7684\u4ee3\u7801\u793a\u4f8b\u548c\u89e3\u91ca\uff0c\u6211\u4eec\u5bf9Linux ext2\u6587\u4ef6\u7cfb\u7edf\u7684\u7269\u7406\u5b58\u50a8\u7ed3\u6784\u6709\u4e86\u66f4\u6df1\u5165\u7684\u4e86\u89e3\u3002\u901a\u8fc7\u6df1\u5165\u5b66\u4e60\u6587\u4ef6\u7cfb\u7edf\u7684\u7269\u7406\u5b58\u50a8\u7ed3\u6784\uff0c\u53ef\u4ee5\u66f4\u597d\u5730\u7406\u89e3\u6587\u4ef6\u7cfb\u7edf\u7684\u5de5\u4f5c\u539f\u7406\uff0c\u5bf9\u4e8e\u7cfb\u7edf\u7ba1\u7406\u5458\u548c\u5f00\u53d1\u4eba\u5458\u6765\u8bf4\u662f\u975e\u5e38\u6709\u5e2e\u52a9\u7684\u3002<\/p><\/sys><\/sys><\/fcntl.h><\/unistd.h><\/stdio.h><\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u6df1\u5165\u63a2\u8ba8Linux ext2\u6587\u4ef6\u7cfb\u7edf\u7684\u7269\u7406\u5b58\u50a8\u7ed3\u6784\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8FDCServers\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
Linux ext2\u6587\u4ef6\u7cfb\u7edf\u662f\u4e00\u79cd\u5728\u5927\u90e8\u5206Linux\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u4f7f\u7528\u7684\u6587\u4ef6\u7cfb\u7edf\uff0c\u5b83\u91c7\u7528\u4e86\u4e00\u79cd\u9ad8\u6548\u7684\u78c1\u76d8\u5b58\u50a8\u7ed3\u6784\u6765\u7ba1\u7406\u6587\u4ef6\u548c\u76ee\u5f55\u7684\u5b58\u50a8\u3002\u5728\u6df1\u5165\u63a2\u8ba8Linux ext2\u6587\u4ef6\u7cfb\u7edf\u7684\u7269\u7406\u5b58\u50a8\u7ed3\u6784\u4e4b\u524d\uff0c\u6211\u4eec\u9996\u5148\u9700\u8981\u4e86\u89e3\u4e00\u4e9b\u57fa\u672c\u6982\u5ff5\u3002 \u5728ext2\u6587\u4ef6\u7cfb\u7edf\u4e2d\uff0c\u6570\u636e\u5b58\u50a8\u5728\u6570\u636e\u5757\uff08block\uff09\u4e2d\uff0c\u6570\u636e\u5757\u662f\u6587\u4ef6\u7cfb\u7edf\u4e2d\u6700\u5c0f\u7684\u53ef\u5206\u914d\u5355\u4f4d\u3002\u6bcf\u4e2a\u6570\u636e\u5757\u6709\u56fa\u5b9a\u7684\u5927\u5c0f\uff0c\u901a\u5e38\u4e3a1KB\u30012KB\u62164KB\u3002\u6587\u4ef6\u7cfb\u7edf\u8fd8\u5c06\u78c1\u76d8\u4e0a\u7684\u6570\u636e\u5757\u5212\u5206\u4e3a\u7ec4\uff08group\uff09\uff0c\u6bcf\u4e2a\u7ec4\u5305\u542b\u82e5\u5e72\u4e2a\u6570\u636e\u5757\uff0c\u5e76\u7531\u4e00\u4e2a\u7ec4\u63cf\u8ff0\u7b26\uff08group descriptor\uff09\u6765\u63cf\u8ff0\u3002 \u6bcf\u4e2a\u7ec4\u90fd\u6709\u4e00\u4e2a\u7ec4\u63cf\u8ff0\u7b26\uff0c\u7ec4\u63cf\u8ff0\u7b26\u5305\u542b\u4e00\u4e9b\u91cd\u8981\u7684\u4fe1\u606f\uff0c\u6bd4\u5982\u7ec4\u4e2d\u6709\u591a\u5c11\u4e2a\u6570\u636e\u5757\u3001\u7d22\u5f15\u8282\u70b9\uff08inode\uff09\u7684\u8d77\u59cb\u4f4d\u7f6e\u7b49\u3002\u7d22\u5f15\u8282\u70b9\u662fext2\u6587\u4ef6\u7cfb\u7edf\u4e2d\u7528\u6765\u63cf\u8ff0\u6587\u4ef6\u548c\u76ee\u5f55\u5c5e\u6027\u7684\u6570\u636e\u7ed3\u6784\u3002 \u63a5\u4e0b\u6765\u6211\u4eec\u6765\u6df1\u5165\u63a2\u8ba8Linux ext2\u6587\u4ef6\u7cfb\u7edf\u7684\u7269\u7406\u5b58\u50a8\u7ed3\u6784\uff0c\u5e76\u9644\u4e0a\u4e00\u4e9b\u4ee3\u7801\u793a\u4f8b\u4ee5\u5e2e\u52a9\u66f4\u597d\u5730\u7406\u89e3\u3002 \u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u6253\u5f00\u4e00\u4e2aLinux\u7ec8\u7aef\uff0c\u5e76\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u521b\u5efa\u4e00\u4e2a\u65b0\u7684ext2\u6587\u4ef6\u7cfb\u7edf\uff1a mkfs.ext2 \/dev\/sda1 \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u5c06\u5728\u8bbe\u5907\/dev\/sda1\u4e0a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684ext2\u6587\u4ef6\u7cfb\u7edf\u3002 \u63a5\u7740\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u6302\u8f7d\u8fd9\u4e2a\u65b0\u521b\u5efa\u7684ext2\u6587\u4ef6\u7cfb\u7edf\uff1a mkdir \/mnt\/ext2 mount \/dev\/sda1 \/mnt\/ext2 \u767b\u5f55\u540e\u590d\u5236 \u73b0\u5728\u6211\u4eec\u5df2\u7ecf\u6210\u529f\u6302\u8f7d\u4e86\u8fd9\u4e2aext2\u6587\u4ef6\u7cfb\u7edf\uff0c\u4e0b\u9762\u6211\u4eec\u6765\u67e5\u770b\u6587\u4ef6\u7cfb\u7edf\u7684\u7269\u7406\u5b58\u50a8\u7ed3\u6784\u3002 \u9996\u5148\uff0c\u6211\u4eec\u6765\u67e5\u770b\u7ec4\u63cf\u8ff0\u7b26\u8868\u7684\u7ed3\u6784\u3002\u6bcf\u4e2a\u7ec4\u63cf\u8ff0\u7b26\u7684\u5927\u5c0f\u4e3a32\u5b57\u8282\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u4e9b\u5173\u952e\u4fe1\u606f\uff0c\u6bd4\u5982\u7ec4\u4e2d\u7684\u5757\u6570\u3001\u7a7a\u95f2\u5757\u6570\u3001\u7d22\u5f15\u8282\u70b9\u6570\u7b49\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684C\u8bed\u8a00\u793a\u4f8b\u4ee3\u7801\uff0c\u7528\u6765\u8bfb\u53d6\u7ec4\u63cf\u8ff0\u7b26\u8868\uff1a #include <stdio.h> #include <unistd.h> #include <fcntl.h> #include <sys> #include <sys> #define BLOCK_SIZE 1024 #define GROUP_DESC_SIZE 32 int main() { int fd; char buf[BLOCK_SIZE]; fd = open(“\/dev\/sda1”, O_RDONLY); if(fd == -1) { perror(“open”); return […]<\/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-63207","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/63207","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=63207"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/63207\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=63207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=63207"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=63207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}