fsck failure at boot

[Krishnaprasad]

try to mount /dev/sdb1 to loop

       ie mount -o loop /dev/sdb1
then run

e2fsck /dev/sdb1

it may work...


Jason Dixon wrote:

>
> We have an Altix 350 (ia64) 2-node server running RHAS 4.  I just  
> installed a fibre Qlogic HBA (QLA2310) in the controller node, which  
> seemed to work fine.  I formatted one large ext3 partition (sdb1) and  
> was able to mount it flawlessly.  Upon rebooting, however, the system  
> hung while checking the new filesystem:
>
> ...
> Checking all file systems.
> [/sbin/fsck.ext3 (1) -- /san] fsck.ext3 -a /dev/sdb1
> /dev/sdb1:
> The superblock could not be read or does not describe a correct ext2
> filesystem.  If the device is valid and it really contains an ext2
> filesystem (and not swap or ufs or something else), then the superblock
> is corrupt, and you might try running e2fsck with an alternate  
> superblock:
>     e2fsck -b 8193 <device>
>
> fsck.ext3: No such file or directory while trying to open /dev/sdb1
> [FAILED]
>
> *** An error occurred during the file system check.
> *** Dropping you to a shell; the system will reboot
> *** when you leave the shell.
> Give root password for maintenance
> (or type Control-D to continue):
> ...
>
>
> Fsck'g the filesystem reports it as clean, and I'm able to mount the  
> partition immediately:
>
> (Repair filesystem) 1 # fsck.ext3 /dev/sdb1
> e2fsck 1.35 (28-Feb-2004)
> /dev/sdb1: clean, 11/61292544 files, 1949532/122554648 blocks
> (Repair filesystem) 2 # mount /san
> (Repair filesystem) 3 # df -h
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/mapper/VolGroup00-LogVol00
>                        74G  7.6G   63G  11% /
> /dev/sdb1             461G  102M  437G   1% /san
>
>
> Does anyone have any clues as to why this is happening?  If I comment  
> out the relevant line in fstab, the machine boots up fine.  I can  
> then manually mount the filesystem, but certainly this should not be  
> necessary.
>
> [root at altix ~]# grep san /etc/fstab
> /dev/sdb1              /san                    ext3     
> defaults        1 2
>
>
> Thanks,
>
> -- 
> Jason Dixon
> DixonGroup Consulting
> http://www.dixongroup.net
>
>
>


-- 
Rgds

KRISHNAPRASAD.K
R&D Engineer
HCL INFOSYSTEMS LTD
PONDICHERRY
Mob: 09894530948