>It sounds like your file-system is corrupted, in any case. Can you run
>"fsck -f" from single-user mode? If you get a lot of errors, it's
>probably best, at this point, to make a new file-system and reload.
>You could also run "fsck -fy" repeatedly, but you're likely to lose a
>lot of files, so at least be prepared to reinstall from MacOS. If you
>continue to use it the way it is, it's only going to get worse.

if his machine has been consistently crashing during hardware probing (at
adb: bus subsystem), i don't see why you'd get hard disk errors because the
disks haven't been probed or mounted at that point. The hard disks should
still be clean.

  - a