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From: Alan Hourihane <alanh@fairlite.demon.co.uk>
Message-Id: <199603152242.WAA00206@fairlite.demon.co.uk>
Subject: Re: FreeBSD 2.1 Bug ?
To: joerg_wunsch@uriah.heep.sax.de
Date: Fri, 15 Mar 1996 22:42:36 +0000 (GMT)
Cc: bugs@freebsd.org
In-Reply-To: <199603152031.VAA02200@uriah.heep.sax.de> from "J Wunsch" at Mar 15, 96 09:31:42 pm
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> > I have OS/2 Boot Manager installed with the following
> > 
> > wd0
> > sd0
> > sd1
> > sd2
> > sd3
> > 
> > I have installed FreeBSD successfully onto sd2, but when rebooting
> > and OS/2 Boot Manager then loads the FreeBSD Boot Manager, it always
> > insists on loading from sd(3,a)/kernel. Which it isn't and fails to mount
> > the root partition.
> 
> It's rather a BIOS bug...  Bruce Evans posted a generic solution for
> the bootblocks about a week ago to freebsd-current.  You should be
> able to find it in the mailing list archives, the subject was
> 
> 	booting from sd5 when wd3 is also installed
> 
> In addition, you could wire down the SCSI disk at ID 2 to be
> recognized by FreeBSD as sd3 (and thus match the BIOS' idea).  See the
> LINT config file for the semantics on wired SCSI devices.
> 
How can this be a BIOS bug ? Linux boots fine from sd0, OS/2 boots fine
from sd1.

I have a 2940 with its bios enabled therefore..

0x80 is wd0
0x81 is sd0
0x82 is sd1
0x83 is sd2
0x84 is sd3


Alan.