[root@192 ~]# tar -jxf extundelete-0.2.4.tar.bz2
[root@192 ~]# cd extundelete-0.2.4/
[root@192 extundelete-0.2.4]# yum -y install e2fsprogs-devel
[root@192 extundelete-0.2.4]# ./configure
[root@192 extundelete-0.2.4]# make && make install
[root@192 extundelete-0.2.4]# umount /sdb/
[root@192 extundelete-0.2.4]# mkdir test && cd test
[root@192 extundelete-0.2.4]# extundelete /dev/sdb1 --inode 2
[root@192 extundelete-0.2.4]# extundelete /dev/sdb1 --restore-file passwd
原文：https://blog.51cto.com/popli3/2388552