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From: keithl@loop.UUCP (Keith Lofstrom)
Newsgroups: comp.sys.apple
Subject: Help! Homebrew SCSI Hard Drive on IIGS
Message-ID: <36@loop.UUCP>
Date: 9 Feb 90 05:32:00 GMT
Organization: Launch Loop; Portland, Or.
Lines: 36


Any GSII hard drive hackers out there?

After a year of faithful service on my Mac, my homebrew 20 meg SCSI hard drive
is migrating to the Apple II GS of a young friend of mine (Say Hi, Lindsay. 
"hi").  Unfortunately, I know nothing about IIGS; young friend knows little
about OS details.

The drive is a 20 Meg Micropolis 1302, 830 tracks, 3 heads, 18 sectors,
3600 RPM, 6ms (!!) access, with an Adaptec 4000A controller.  I have formatted
it on the Mac with Fractal Formatter or Silver Lining 5.2, either works fine,
on the Mac.  I am formatting with an interleave of 3, and entering the bad
blocks with Fractal.  Silver Lining claims to be able to write a ProDos
partition.

When I move the drive to the IIGS, it can't find partitions; OK, an initialize
and an erase seems to make a proper drive.  The fun happens when I start moving
files to it; after some random number of files it stops copying with an error
"8051". At this point my only option seems to be to erase the disk and start
again.

We are running a ProDos 5.02 ( an "unofficial" copy made by a local
dealer ...  a real copy is on order ).  The Apple SCSI card is in slot 7.

Any ideas?  Can this be made to work?  Will Lindsay be able to launch Math
Blaster without using the floppy?

I am not interested in becoming an Apple IIGS expert; some cookbook directions
would be wonderful, but a pointer to a book or article would be OK, too.

Thanks a Meg;
Keith

-- 
Keith Lofstrom    keithl@loop    tektronix!psueea!qiclab!loop!keithl
Launch Loop, P.O. Box 1538, Portland, Oregon 97207   (503)-628-3645