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From: rickfor@ncrcae.Columbia.NCR.COM (Rick Forrest)
Newsgroups: comp.sys.amiga,comp.sys.amiga.tech
Subject: Supra I/F
Keywords: autoboot, rw errors
Message-ID: <5177@ncrcae.Columbia.NCR.COM>
Date: 4 Oct 89 12:39:50 GMT
Distribution: na
Organization: NCR Corp., Engineering & Manufacturing - Columbia, SC
Lines: 30

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.