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From: Wilko Bulte <wilko@yedi.iaf.nl>
Message-Id: <199601042030.VAA01717@yedi.iaf.nl>
Subject: Re: X for install
To: terry@lambert.org (Terry Lambert)
Date: Thu, 4 Jan 1996 21:30:18 +0100 (MET)
Cc: gibbs@freefall.freebsd.org, phk@critter.tfs.com, jkh@time.cdrom.com,
        obrien@cs.ucdavis.edu, freebsd-hackers@freebsd.org
In-Reply-To: <199601031852.LAA15173@phaeton.artisoft.com> from "Terry Lambert" at Jan 3, 96 11:52:10 am
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> You want an INT 13 VM86() disk driver to get the controller specific
> driver loaded (a medium persistance object, since you will want to
> discard it once it has done this).  This is also a "fallback" driver,
> since it means you can use any disk DOS can use, if you have no native
> protected mode driver avilable.
> 
> 
> The INT 15 EISA problem is annoying, but I think you can use signature
> tagging to do memory size probing (the reason you need the EISA BIOS
> is that the per slot memory is not necessarily a fixed range and can
> vary from box to box, though most have pretty much standardized).
> 
> 
> 					Terry Lambert
> 					terry@lambert.org

In our (=at a former 'work') most of the EISA mainboards only survive
calling the EISA INT from things like DOS. The 32 bit equivalent in
the BIOS most of the times simply crashed the Unix. I lost the details
but I think counting on this to work is optimistic

BTW we where using this to 'autoconfig' a ATT V.3 based system. You
still had to do a kernel link but it was based on the info in the EISA
config NVRAM.

Wilko
_     __________________________________________________________________________
 |   / o / /  _   Wilko Bulte             email: wilko@yedi.iaf.nl
 |/|/ / / /( (_)  Private FreeBSD site  - Arnhem - The Netherlands
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