时间:2015-03-12 16:04:55 作者:qipeng 来源:系统之家 1. 扫描二维码随时看资讯 2. 请使用手机浏览器访问: https://m.xitongzhijia.net/xtjc/20150312/41089.html 手机查看 评论 反馈
开始工作之前,我们先来制作一个分区,然后来做试验
[root@localhost bin]# mkdir /tmp/test
[root@localhost bin]# dd if=/dev/zero of=file count=102400
[root@localhost bin]#mkfs.ext3 file
######按Y继续
[root@localhost bin]#mount -o loop /tmp/test/file /mnt
看一下有没有挂上
[root@localhost bin]# df -HT
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
ext3 20G 4.3G 15G 23% /
/dev/sda1 ext3 104M 13M 86M 13% /boot
tmpfs tmpfs 185M 0 185M 0% /dev/shm
/tmp/test/file
ext3 51M 5.1M 44M 11% /mnt
然后写入数据到里面
[root@localhost bin]#cd /mnt
[root@localhost bin]#ls
lost+found
[root@localhost mnt]# mkdir del
[root@localhost mnt]# cd del
[root@localhost del]# touch 1 2 3
[root@localhost del]# ls
1 2 3 lost+found
[root@localhost del]# cd 。。
[root@localhost mnt]#rf -rf del
[root@localhost bin]#ls
lost+found
下面开始恢复了
[root@localhost mnt]#cd /usr/local/ext3grep/bin
扫描一下分区
[root@localhost bin]# 。/ext3grep /tmp/test/file --ls --inode 2
Running ext3grep version 0.10.2
Number of groups: 7
Loading group metadata.。。 done
Minimum / maximum journal block: 447 / 4561
Loading journal descriptors.。。 sorting.。。 done
The oldest inode block that is still in the journal, appears to be from 1315980293 = Wed Sep 14 14:04:53 2011
Number of descriptors in journal: 36; min / max sequence numbers: 2 / 6
Inode is Allocated
Finding all blocks that might be directories.
D: block containing directory start, d: block containing more directory entries.
Each plus represents a directory start that references the same inode as a directory start that we found previously.
Searching group 0: DD++D++
Searching group 1:
Searching group 2:
Searching group 3:
Searching group 4:
Searching group 5:
Searching group 6:
Writing analysis so far to ’file.ext3grep.stage1‘。 Delete that file if you want to do this stage again.
Result of stage one:
3 inodes are referenced by one or more directory blocks, 2 of those inodes are still allocated.
1 inodes are referenced by more than one directory block, 1 of those inodes is still allocated.
0 blocks contain an extended directory.
Result of stage two:
2 of those inodes could be resolved because they are still allocated.
All directory inodes are accounted for!
Writing analysis so far to ’file.ext3grep.stage2‘。 Delete that file if you want to do this stage again.
The first block of the directory is 433.
Inode 2 is directory “”。
Directory block 433:
。-- File type in dir_entry (r=regular file, d=directory, l=symlink)
| 。-- D: Deleted ; R: Reallocated
Indx Next | Inode | Deletion time Mode File name
==========+==========+----------------data-from-inode------+-----------+=========
0 1 d 2 drwxr-xr-x 。
1 2 d 2 drwxr-xr-x 。。
2 end d 11 drwx------ lost+found
3 4 r 12 D 1315980355 Wed Sep 14 14:05:55 2011 rrw-r--r-- 1
4 5 r 13 D 1315980355 Wed Sep 14 14:05:55 2011 rrw-r--r-- 2
5 6 r 14 D 1315980355 Wed Sep 14 14:05:55 2011 rrw-r--r-- 3
6 end d 1833 D 1315980355 Wed Sep 14 14:05:55 2011 drwxr-xr-x del
[root@localhost bin]# 。/ext3grep /tmp/test/file --restore-file del --depth del
Running ext3grep version 0.10.2
Number of groups: 7
Minimum / maximum journal block: 447 / 4561
Loading journal descriptors.。。 sorting.。。 done
The oldest inode block that is still in the journal, appears to be from 1315980293 = Wed Sep 14 14:04:53 2011
Number of descriptors in journal: 36; min / max sequence numbers: 2 / 6
Writing output to directory RESTORED_FILES/
Loading file.ext3grep.stage2.。。 done
下面开始恢复文件
[root@localhost bin]# 。/ext3grep /tmp/test/file --restore-all
Running ext3grep version 0.10.2
Number of groups: 7
Minimum / maximum journal block: 447 / 4561
Loading journal descriptors.。。 sorting.。。 done
The oldest inode block that is still in the journal, appears to be from 1315980313 = Wed Sep 14 14:05:13 2011
Number of descriptors in journal: 36; min / max sequence numbers: 3 / 9
Loading file.ext3grep.stage2.。。 done
Restoring 1
Restoring 2
Restoring 3
Restoring del/1
Restoring del/2
Restoring del/3
这个命令是恢复所有的,当然也可以恢复指定文件的。
可以看到在当前目录下,多了一个目录
[root@localhost bin]# ls
RESTORED_FILES ext3grep
我们进去看一下
[root@localhost bin]# cd RESTORED_FILES/
[root@localhost RESTORED_FILES]# ls
1 2 3 del lost+found
上面就是Linux使用ext3grep恢复文件的方法介绍了,通过本文的介绍可以看出,ext3grep不仅能够恢复所有被删除的文件,还能恢复指定的文件。
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