linux文件恢复工具extundelete恢复被删除文件示例

　　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.