linux文件恢复工具extundelete恢复被删除文件示例
发布:smiling 来源: PHP粉丝网 添加日期:2015-04-27 15:49:50 浏览: 评论:0
extundelete是一个恢复工具了常用于linux系统中文件被删除之后的恢复软件了,下面小编来给各位整理一个extundelete工具恢复文件的例子.
安装extundelete:
- [root@xifenfei tmp]# bunzip2 extundelete-0.2.0.tar.bz2
 - [root@xifenfei tmp]# tar xvf extundelete-0.2.0.tar
 - extundelete-0.2.0/
 - extundelete-0.2.0/README
 - extundelete-0.2.0/acinclude.m4
 - extundelete-0.2.0/configure.ac
 - extundelete-0.2.0/aclocal.m4
 - extundelete-0.2.0/Makefile.am
 - extundelete-0.2.0/Makefile.in
 - extundelete-0.2.0/config.h.in
 - extundelete-0.2.0/configure
 - extundelete-0.2.0/compile
 - extundelete-0.2.0/depcomp
 - extundelete-0.2.0/install-sh
 - extundelete-0.2.0/missing
 - extundelete-0.2.0/LICENSE
 - extundelete-0.2.0/autogen.sh
 - extundelete-0.2.0/src/
 - extundelete-0.2.0/src/Makefile.am
 - extundelete-0.2.0/src/Makefile.in
 - extundelete-0.2.0/src/extundelete.cc
 - extundelete-0.2.0/src/block.c
 - extundelete-0.2.0/src/insertionops.cc
 - extundelete-0.2.0/src/block.h
 - extundelete-0.2.0/src/extundelete.h
 - extundelete-0.2.0/src/extundelete-priv.h
 - extundelete-0.2.0/src/jfs_compat.h
 - extundelete-0.2.0/src/kernel-jbd.h
 - [root@xifenfei tmp]# cd extundelete-0.2.0
 - [root@xifenfei extundelete-0.2.0]# ./configure
 - Configuring extundelete 0.2.0
 - Writing generated files to disk
 - [root@xifenfei extundelete-0.2.0]# make && make install
 - make -s all-recursive
 - Making all in src
 - Making install in src
 - /usr/bin/install -c 'extundelete' '/usr/local/bin/extundelete'
 
恢复操作命令:
- --umount或者read only 分区
 - umount /dev/partition
 - mount -o remount,ro /dev/partition
 - --恢复文件
 - xtundelete /dev/partition --restore-all
 - extundelete /dev/partition --restore-directory /backup/gnutool-delete
 - extundelete /dev/partition --restore-files /etc/passwd
 - 测试恢复
 - --基于目录恢复
 - [root@xifenfei tmp]#extundelete /dev/sdb1 --restore-directory /u01/xifenfei
 - Loading filesystem metadata ... 160 groups loaded.
 - Loading journal descriptors ... 23 descriptors loaded.
 - Writing output to directory RECOVERED_FILES/
 - Failed to restore file /u01/xifenfei
 - Could not find correct inode number past inode 2.
 - [root@xifenfei tmp]# cd RECOVERED_FILES/
 - [root@xifenfei RECOVERED_FILES]# ll
 - total 0
 - --未成功
 - --基于磁盘恢复
 - [root@xifenfei RECOVERED_FILES]#extundelete /dev/sdb1 --restore-all
 - Loading filesystem metadata ... 160 groups loaded.
 - Loading journal descriptors ... 23 descriptors loaded.
 - Writing output to directory RECOVERED_FILES/
 - Searching for recoverable inodes in directory / ...
 - 4 recoverable inodes found.
 - Looking through the directory structure for deleted files ...
 - Failed to restore inode 1966081 to file RECOVERED_FILES/xifenfei:Inode does not correspond to a regular file.
 - Restored inode 1966082 to file RECOVERED_FILES/xifenfei/xff.txt
 - Failed to restore inode 1966083 to file RECOVERED_FILES/xifenfei/xff:Inode does not correspond to a regular file.
 - Restored inode 1966084 to file RECOVERED_FILES/xifenfei/xff/xff.txt132
 - 0 recoverable inodes still lost.
 - [root@xifenfei RECOVERED_FILES]# ll
 - total 4
 - drwxr-xr-x 3 root root 4096 Aug 31 21:36 RECOVERED_FILES
 - [root@xifenfei RECOVERED_FILES]# cd RECOVERED_FILES/
 - [root@xifenfei RECOVERED_FILES]# ll
 - total 4 --phpfensi.com
 - drwxr-xr-x 3 root root 4096 Aug 31 21:36 xifenfei
 - [root@xifenfei RECOVERED_FILES]# cd xifenfei/
 - [root@xifenfei xifenfei]# ll
 - total 20
 - drwxr-xr-x 2 root root 4096 Aug 31 21:36 xff
 - -rw-r--r-- 1 root root 13231 Aug 31 21:36 xff.txt
 - [root@xifenfei xifenfei]# cd xff
 - [root@xifenfei xff]# ll
 - total 16
 - -rw-r--r-- 1 root root 13231 Aug 31 21:36 xff.txt132
 - --恢复成功
 - --基于文件恢复
 - [root@xifenfei xff]# extundelete /dev/sdb1 --restore-files /u01/xifenfei/xff.txt --phpfensi.com
 - Loading filesystem metadata ... 160 groups loaded.
 - Loading journal descriptors ... 23 descriptors loaded.
 - Writing output to directory RECOVERED_FILES/
 - [root@xifenfei xff]# cd RECOVERED_FILES/
 - [root@xifenfei RECOVERED_FILES]# ll
 - total 0
 - --未成功
 
通过上述实验证明extundelete还是有很大的不完整性,基于整个磁盘的恢复功能较为强大,基于目录和文件的恢复还不够强大,不过该软件在很多时候还是有救火的功能,特别是当蛋筒的人员删除了数据库的部分文件之时.
Tags: linux文件恢复 extundelete
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