File system corruption problems

[Eric Hagglund <eahagglun@yahoo.com>]

I'm getting the following error when Linux is booting
up: 
VFS: Disk change detected on device 02:00
EXT2-fs
error (device 02:00): ext2_check_descriptors: Block
bitmap for group 0 not in group (block
54535169)!
EXT2-fs: group descriptors corrupted
!
EXT2-fs error (device 02:00):
ext2_check_descriptors: Block bitmap for group 0 not
in group (block 54535169)!
EXT2-fs: group descriptors
corrupted !
EXT2-fs error (device 02:00):
ext2_check_descriptors: Block bitmap for group 0 not
in group (block 54535169)!
EXT2-fs: group descriptors
corrupted !

Can someone tell me how serious this is and what I
might do to resolve it?

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