急!linux7.2重起后系统统修复的问题!!!

急!linux7.2重起后系统统修复的问题!!!

reahat 7.2操作系统 ,好像是/home出了问题!!!
系统重起后要求repair system,要root密码,进入后,
提示如下信息:
the superbock could not be read or does not descride a correct ext2 filesystem.if the device is valid and it really contained an ext2 filesystem (and not swap or ufs or somethingelse),then the superblock
is corrupt,and you might try running e2fsck with an alternate superbolck : e2fsck -b 8193 <device>
即系统提示显示用如下命令:e2fsck -b 8193 <device>
(repair filesystem):14#e2fsck /dev/sda2
e2fsck 1.23,15-aug-2001 for ext2 fs 0.5b,75/08/09
group description look bad ... trying backup blocks...
esfsck:attempt to read block from filesystem resulted in short read
while checking ext3 journal for /home
e2fsck: io mananger mangic bad !!!

怎么办???请高人指教!
      
你这肯定是服务器掉电引起的系统文件被破坏了。

你可以用fsck /dev/分区名 来修复。      
当我执行fsck /dev/sda6的时候,
系统提示:
warnning:running e2fsck on a mounted system may cause server filesystem damange.
do u really want to continue(y?n)?

怎么办?我已经执行了fsck /dev/sda1到5了      
y      
Fsck -Aa 或fsck -PA
让它自己试试!      
系统告诉你时/home出了问题,你就fsck /home,
你用fsck /dev/hda6,这个应该是你的/分区吧?已经mount在上面了,所以会有这个提示,用fsck /home试试.