wget http://nchc.dl.sourceforge.net/project/extundelete/extundelete/0.2.4/extundelete-0.2.4.tar.bz2
tar -jxvf extundelete-0.2.4.tar.bz2
yum install e2fsprogs* e2fslibs* gcc gcc-c++ gcc-g77 -y
cd extundelete-0.2.4
./configure --prefix=/usr/local/extundelete
make
make install
[root@vm40 home]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/vda3 51G 3.5G 45G 8% /
tmpfs 1.9G 224K 1.9G 1% /dev/shm
/dev/vda1 194M 34M 151M 19% /boot
/dev/sr0 4.2G 4.2G 0 100% /media/CentOS_6.5_Final
/dev/sr0 4.2G 4.2G 0 100% /mnt
/dev/vda2 97G 188M 92G 1% /u01
[root@vm40 home]# cp /etc/passwd /u01/
[root@vm40 home]# sync
[root@vm40 home]# rm -f /u01/passwd
[root@vm40 home]# sync
[root@vm40 home]# umount /u01
[root@vm40 home]# /usr/local/extundelete/bin/extundelete --restore-file passwd /dev/vda2
NOTICE: Extended attributes are not restored.
Loading filesystem metadata ... 782 groups loaded.
Loading journal descriptors ... 82 descriptors loaded.
Successfully restored file passwd
[root@vm40 home]# ls
oracle RECOVERED_FILES
[root@vm40 home]# ls RECOVERED_FILES/
passwd
[root@vm40 home]# rm -fr RECOVERED_FILES/
[root@vm40 home]# mount /dev/vda2 /u01/
[root@vm40 home]# sync
原文：http://plking.blog.51cto.com/8198599/1767545