I just reformatted the player using the upgrade. It hangs on 'finding pump' and fails with 'Couldn't find pump error 0x20'

I ran the developer upgrade and it seemed to take.

However, it hangs at the boot screen and if i hyperterminal in I get tons and tons of this:

EXT2-fs error (device ide0(3,4)): ext2_free_blocks: Freeing blocks not in datazo
ne - block = 2946096496, count = 1
Remounting filesystem read-only
Kernel panic: EXT2-fs panic (device ide0(3,4)): load_block_bitmap: block_group >
= groups_count - block_group = 524287, groups_count = 4757

Any ideas?