From owner-freebsd-hackers  Fri Oct 27  4:11:24 2000
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From: Robert Nordier <rnordier@nordier.com>
Message-Id: <200010271110.NAA26088@siri.nordier.com>
Subject: Re: Really odd "BTX halted" problem booting FreeBSD on VALinux hardware
To: dillon@earth.backplane.com (Matt Dillon)
Date: Fri, 27 Oct 2000 13:10:56 +0200 (SAST)
Cc: tlambert@primenet.com (Terry Lambert),
	freebsd-stable@FreeBSD.ORG (freebsd-stable@FreeBSD.ORG),
	hackers@FreeBSD.ORG
In-Reply-To: <200010271034.e9RAY9J04147@earth.backplane.com> from "Matt Dillon" at Oct 27, 2000 03:34:09 AM
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Matt Dillon wrote:
> 
> : 
> :> Raw data on disk after 'disklabel -w -r da0 auto; disklabel -B da0 auto'
> :
> :If you added "auto" after the "disklabel -B", that may be your problem.
> :
> :-- 
> :Robert Nordier
> 
>     type-o.  No auto for the -B still blows up the dos partition
>     table.
 
Just doing the disklabel -w -r followed by the disklabel -B is creating
a dangerously dedicated disk, which your BIOS apparently doesn't like.
(See the first hex dump you did, where boot1 has ended up in the MBR.)

That's why installing boot blocks is messing with the partition table,
to answer the question you asked elsewhere.

You need to dd and fdisk before the disklabel commands, which will give
you a standard partition table (at the cost of 63 sectors of disk
space).
    
-- 
Robert Nordier

rnordier@nordier.com
rnordier@FreeBSD.org


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