Repost: can't get hard drive to boot GS/OS

[philip@labtam.labtam.oz.au (Philip Stephens)]

  I little while back I posted a problem I'm having with my new 40 Mb
external hard drive on my GS, but so far nobody has offered any suggestions
as to what could be wrong.
  Anyway, I've done some more investigating of the problem, and here's the
current situation:

  I have two partitions set up: the boot partition is 8 Mb (the other 32
Mb).  When I installed System 5.04 onto the boot partition and set the hard
drive as the startup device, it would crash midway through the booting
process.
  Last night I held down OPEN APPLE-OPTION-ESC in order to obtain more
information about what GS/OS was doing; it showed that the computer was
crashing after the "Init Manager Part 3, version 3.00" was loaded.  This
code exists within the file GS.OS in the SYSTEMS folder.
  Next I copied System 5.04 from the hard drive back onto a floppy disk,
and booted off that floppy.  It also crashed in exactly the same place.
Thus it *appears* that I have some bad blocks on my hard drive that is
corrupting the GS.OS file.

  However, verifying the hard drive using the Apple // High Speed SCSI
Utilities disk shows up no bad blocks, neither does verifying the hard
drive using the Finder.  Shouldn't the hard drive communicate back to the
SCSI card whenever it can't read a block?  Mine doesn't seem to!
  I have tried doing a low level format, but the hard drive doesn't support
it.  Is there any way I can do a low level format?  Would writing zero 
blocks to the hard drive help?

  One last thing: I tried renaming the SYSTEM folder on the hard drive to
BAD.FOLDER and then created a new SYSTEM folder, in an attempt to avoid
any bad blocks.  Rebooting caused the computer to crash in exactly the same
spot!  Is this just coincidence or an indication that something more
sinister is happening?

  ANY help would be greatly appreciated!

-- 
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