LinuxQuestions.org - ext2fs_block_iterate: Ext2 file too big

I have a serious problem at booting on Scientific Linux 6.1 x86.

So, I booted with systemrescuecd, and got this message at "fsck.ext4 -c /dev/vg_excaliber/lv_root".

Code:

....

Group descriptor 398 checksum is invalid.  FIXED.

Group descriptor 399 checksum is invalid.  FIXED.

Backing up journal inode block information.



Resize inode not valid.  Recreate<y>? yes



ext2fs_block_iterate: Ext2 file too big while sanity checking the bad blocks inode

And the result of "fdisk -l" is here.

Code:

root@sysresccd /root % fdisk -l



Disk /dev/sda: 160.0 GB, 160041885696 bytes

255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x0de00ee4



  Device Boot      Start        End      Blocks  Id  System

/dev/sda1  *        2048    1026047      512000  83  Linux

/dev/sda2        1026048  312580095  155777024  8e  Linux LVM



Disk /dev/mapper/vg_excaliber-lv_root: 53.7 GB, 53687091200 bytes

255 heads, 63 sectors/track, 6527 cylinders, total 104857600 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0xffffffff



Disk /dev/mapper/vg_excaliber-lv_root doesn't contain a valid partition table



Disk /dev/mapper/vg_excaliber-lv_home: 103.7 GB, 103712555008 bytes

255 heads, 63 sectors/track, 12608 cylinders, total 202563584 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00000000



Disk /dev/mapper/vg_excaliber-lv_home doesn't contain a valid partition table



Disk /dev/mapper/vg_excaliber-lv_swap: 2113 MB, 2113929216 bytes

255 heads, 63 sectors/track, 257 cylinders, total 4128768 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00000000



Disk /dev/mapper/vg_excaliber-lv_swap doesn't contain a valid partition table

Please let me know how to resolve this problem.