Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!brutus.cs.uiuc.edu!usc!randvax!zorin!chris
From: chris@zorin.UUCP (Christopher Nielsen)
Newsgroups: comp.sys.ibm.pc
Subject: Re: AT BIOS's supporting > 1024 cylinders
Summary: We do...
Message-ID: <198@zorin.UUCP>
Date: 30 Oct 89 06:30:39 GMT
References: <1458@ole.UUCP> <605@dcscg1.UUCP>
Distribution: na
Organization: Zorin Data Systems, Inc., Santa Monica, CA
Lines: 37

In article <605@dcscg1.UUCP>, dgaulden@dcscg1.UUCP (David E. Gaulden) writes:
> 
> You might want to look into your fixed drive controller also, as they
> usually don't support more than 1024 cylinders either.
> 
> I had a IBM 339 AT at one time and ran AWARD 3.02 BIOS (current is ver 3.03)
> and it was compatable but not sure whether it supports > 1024 cylinders. Can
> get back to you on that...
> -- 

Well, I've worked with voice processing systems, using Maxtor 2190s, which
have 1224 cylinders. Award bios is used, drive type 25. I am not sure about
the version of Award Bios, but it does have the CNTL-ALT-ESC menu. 

The voice system (Vynet) makes a special partition, which does go above
1024 cylinders.

Interesting thing though... I tried to do with with a Microport installation.
It seemed to work ok... until one day I filled up the disk enough to go 
(apperently) above 1024 cyls. Suddenly, things went berzerk. Fdisk then
though I had 1-199 cyls in use (1224 - 1024?). I then used another disk
of the same type, creating a 1024 cyl. partition. Then copied the kernel
over and over until 0 blocks. no problem...

Anyway, I don't think the controller has any problems, cause I've seen it
done. I was thinking either the BIOS, but then thought it unlikely, since
there is a drive type supporting >1024 cyls. Could it be the partition
table? (unix) that gave me problems? Don't know...


Christopher A. Nielsen
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