From owner-freebsd-current  Sat Nov 23 22:46:54 1996
Return-Path: owner-current
Received: (from root@localhost)
          by freefall.freebsd.org (8.7.5/8.7.3) id WAA01418
          for current-outgoing; Sat, 23 Nov 1996 22:46:54 -0800 (PST)
Received: from GndRsh.aac.dev.com (GndRsh.aac.dev.com [198.145.92.241])
          by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id WAA01408;
          Sat, 23 Nov 1996 22:46:31 -0800 (PST)
Received: (from rgrimes@localhost) by GndRsh.aac.dev.com (8.7.5/8.7.3) id WAA02008; Sat, 23 Nov 1996 22:45:24 -0800 (PST)
From: "Rodney W. Grimes" <rgrimes@GndRsh.aac.dev.com>
Message-Id: <199611240645.WAA02008@GndRsh.aac.dev.com>
Subject: Re: 2.2-ALPHA install failure
In-Reply-To: <541.848814950@time.cdrom.com> from "Jordan K. Hubbard" at "Nov 23, 96 09:55:50 pm"
To: jkh@time.cdrom.com (Jordan K. Hubbard)
Date: Sat, 23 Nov 1996 22:45:23 -0800 (PST)
Cc: msmith@atrad.adelaide.edu.au, fenner@parc.xerox.com,
        freebsd-current@freebsd.org, jkh@freebsd.org, phk@freebsd.org
X-Mailer: ELM [version 2.4ME+ PL25 (25)]
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: owner-current@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk

> > Humm... let me see... if I get this right (I don't use sysinstall, but
> > I have seen this X/1/1 translation thing it does) sysinstall defaults to
> > a X/1/1 translation, and even goes so far as to write that into the
> > MBR on a ``dangerously dedicated'' install.
> 
> This was what phk recommended as proper "hint" values for libdisk in
> the dangerously-dedicated case.  What would you suggest instead?

As ``hint'' values I would suggest X/64/32 (C/H/S) for SCSI drives,
for IDE, well, hummmm... I don't really have a lot to say there, as
every single scsi controller I can think of _can_ deal with that translation,
and it gives you at least 1G of area.  Bruces suggested values of
X/64/255 cause problems for the controllers that use a different extended
tranlation set (ie, X/63/256, X/64/256, and some other strange ones).


-- 
Rod Grimes                                      rgrimes@gndrsh.aac.dev.com
Accurate Automation, Inc.                   Reliable computers for FreeBSD