Hi,

first umount /dev/sda1 from mount point directory

after try fsck

Drive failure. You can use dd to remove as much data from the drive before replacing the drive.

First of all thanks for your response...

i use mount -r /dev/sda1 /mnt but i see following error :

wrong fs file type, bad option bad superblock on /dev/sda1 or too many mounted file system.

Try:

fsck -b 8193(see man page of e2 fsck)

if same error, check with "-c" option

can you mount it with "r" permission ?

mount -r /dev/sda1 /mnt

if yes...

then try to copy content of filesystem by "tar" or "cpio" and create

new filesystem and restore copied files..

otherwise the best way is to create a new filesystem

and restore backup

Hi,

you must umount filsystem

after run fsck /dev/sda1

you dont have problem if get any error type error this site