Path: utzoo!mnetor!uunet!tektronix!sequent!mntgfx!dclemans
From: dclemans@mntgfx.mentor.com (Dave Clemans)
Newsgroups: comp.sys.atari.st
Subject: Re: questions Re: Hard drives for the ST
Message-ID: <1988Jan4.083517.6003@mntgfx.mentor.com>
Date: 4 Jan 88 16:35:14 GMT
References: <3268@batcomputer.tn.cornell.edu>
Organization: Mentor Graphics Corporation, Beaverton Oregon
Lines: 22

> Does anybody have a disassembly of AHDI.PRG?  I have a strange bug, and
> suspect that AHDI.PRG fiddles with high RAM.  Could that be?  Is there
> an alternative driver program for the Atari HD?

There are at least two alternatives; the Supra driver and the ICD
driver.  Both have been freely distributed on Compuserve.

> PS: how can I persuade PC-Ditto to read partitions D: and E: from inside
> MS-DOS?  I am trying out PCD 3.0 on 1040ST, mono, SH204 HD, and _did_ put
> "device=pc_dhd.sys" at top of config.sys.  "Dir d:" prints either garbage or
> an empty list of files.  The PCD docs say that reformatting the HD is _not_
> required (unless you want to autoboot MS-DOS from the HD, in which case you
> must let MS-DOS reformat partition C:).  Partition C reads OK (and I did
> not reformat it).

From messages on Compuserve, there are apparently some fields in the
boot sector that are "don't care" to the Atari driver, but are looked at
by IBM drivers.  Avant-garde is distributing a patch program via Compuserve
(and presumably others) that zaps these fields from the garbage that they
are left at by the Atari formatter into something that MS-DOS approves of.

dgc