[comp.sys.amiga] Supra I/F

rickfor@ncrcae.Columbia.NCR.COM (Rick Forrest) (10/04/89)

Heeeellllpppp!

System:

A500
Supra HD I/F
Adaptec ACB 4520 SCSI to ESDI bridge card
ESDI drive.

Symptoms:

1. System won't cold boot from HD. Stick in SupraBoot floppy - it boots, xfers
control to the hard drive. Any following warm boots will work from HD, i.e.,
no need for SupraBoot in df0:

2. R/W errors on my hard drive. They don't go away with a reboot. That is, the
same files give r/w errs time after time.  So, I need to map out bad blocks.
But I can't convince the Supra s/w to let me use the map option. Ideas?

Number 1 is not a big deal, but 2 is _killing_ me. If anyone can help, you'll
have a friend for life.

Oh, yeah - the 4520 is strapped to emulate the Adaptec 4000 - it's the only
way i could get it to format at all. When I came up SupraFormat chose Other
as my controller type. The drive would format like this, but no map option.
If I try to choose 4000 or 4070 as my controller type, format just says 
"this controller does not support the SCSI Mode command."

Thanks for any help.
Rick Forrest.

billsey@agora.UUCP (Bill Seymour) (10/11/89)

From article <5177@ncrcae.Columbia.NCR.COM:, by rickfor@ncrcae.Columbia.NCR.COM (Rick Forrest):
: Heeeellllpppp!
: 
: System:
: 
: A500
: Supra HD I/F
: Adaptec ACB 4520 SCSI to ESDI bridge card
: ESDI drive.

	Looks like here's the problem... The 4520 is enough different from
the 4000a that the Supra software doesn't help you. Your best best will be
to find a different system that can format/map your HD, then hook it up to
amy and just 'zero' your partitions. Make sure you write the bootup stuff
onto the drive after zeroing and you should be able to autoboot... Or at
least boot with a second vulcan nerve pinch...

: Thanks for any help.
: Rick Forrest.
-- 
     -Bill Seymour             ...tektronix!reed!percival!agora!billsey
                               ...tektronix!sequent.UUCP!calvin!billsey
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