恢复Linux下被误删除的文件

[root@xuegod63 ~]# mount /dev/cdrom /mnt/

分一个区:sda4 

查找:extundelete

分一个区:sda4 

[root@localhost ~]# mkdir /tmp/sda4

[root@localhost ~]# mkfs.ext4 /dev/sda4     格式化

[root@xuegod63 Desktop]# echo $?

0

[root@localhost ~]# mount /dev/sda4 /tmp/sda4/

 [root@localhost ~]# df -Th  #查看磁盘相关信息

[root@xuegod63 Desktop]# mount /dev/sda4 /tmp/sda4

[root@xuegod63 Desktop]# df -h

Filesystem            Size  Used Avail Use% Mounted on

/dev/sda2             9.7G  3.8G  5.5G  41% /

tmpfs                 569M  264K  569M   1% /dev/shm

/dev/sda1             194M   28M  157M  15% /boot

/dev/sr0              3.4G  3.4G     0 100% /mnt

/dev/sda4            1012M   34M  928M   4% /tmp/sda4

 

复制一些用于测试删除的文件:

[root@localhost ~]# cp /etc/passwd /tmp/sda4/

[root@localhost ~]# cp /etc/hosts /tmp/sda4/  

[root@localhost ~]# vim /tmp/sda4/a.txt          #vim编辑a.txt 随便写入一些数据。

[root@localhost ~]# mkdir -p  /tmp/sda4/a/b/c

[root@localhost ~]# cp /tmp/sda4/a.txt /tmp/sda4/a

 

[root@localhost ~]# cp /tmp/sda4/a.txt /tmp/sda4/a/b/

删除:

[root@xuegod63 ~]# mkdir /tmp/back

[root@xuegod63 ~]# cp -r /tmp/sda4/* /tmp/back

[root@xuegod63 ~]# cd /tmp/sda4/

[root@localhost ~]# rm -rf passwd hosts a   a.txt

[root@localhost ~]# ls /tmp/sda4/

lost+found

 

 

卸载需要恢复文件的分区:  inode

[root@xuegod63 sda4]# cd

[root@xuegod63 ~]# umount /tmp/sda4/

 

安装软件 extundelete

[root@xuegod63 ~]# tar jxvf extundelete-0.2.4.tar.bz2

[root@xuegod63 ~]# cd extundelete-0.2.4

[root@xuegod63 extundelete-0.2.4]# ./configure

Configuring extundelete 0.2.4

configure: error: Can't find ext2fs library   #报错

[root@xuegod63 ~]# mount /dev/cdrom  /mnt/

[root@xuegod63 extundelete-0.2.4]# rpm -ivh /mnt/Packages/e2fsprogs-devel-1.41.12-11.el6.x86_64.rpm

[root@xuegod63 extundelete-0.2.4]#

[root@xuegod63 extundelete-0.2.4]# ./configure  #检查安装环境并生成Makefile

[root@xuegod63 extundelete-0.2.4]# make  #编译

[root@xuegod63 extundelete-0.2.4]# make install  #安装

查找博客:http://www.cnblogs.com/jjzd/p/5785851.html

安装e2fsprogs-devel-1.41.12-14.el6.x86_64.rpm

 

开始恢复:

方法1:

通过inode结点查看被删除的文件名字:

[root@xuegod63 ~]# mkdir test

[root@xuegod63 ~]# cd test/

[root@localhost ~]# extundelete /dev/sda4 --inode 2

。。。

lost+found                                        11

passwd                                            12             Deleted

hosts                                             13             Deleted

a                                                 8193           Deleted

a.txt                                             15             Deleted

 

通过inode节点来恢复:

[root@localhost ~]# extundelete  /dev/sda4 --restore-inode  12

NOTICE: Extended attributes are not restored.

Loading filesystem metadata ... 16 groups loaded.

Loading journal descriptors ... 32 descriptors loaded.

 [root@localhost ~]# ls RECOVERED_FILES/       #恢复成功

file.12

[root@xuegod63 test]# diff /etc/passwd /root/test/RECOVERED_FILES/file.12

 

方法二,通过文件名恢复

 

方法二,通过文件名恢复

恢复某个文件:

[root@xuegod63 test]# rm -rf RECOVERED_FILES/

[root@localhost ~]# extundelete /dev/sda4 --restore-file  passwd

 

恢复某个目录,如目录a下的所有文件:

[root@localhost ~]# extundelete /dev/sda4 --restore-directory   a   #恢复目录a ,不用

 

恢复所有的文件

[root@localhost ~]# extundelete  /dev/sda4 --restore-all     

 

使用心得:

空目录或空文件恢复不成功。

posted on 2016-08-18 23:14  浮沉一梦  阅读(10941)  评论(0编辑  收藏  举报