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Date:      Thu, 12 Oct 2000 17:46:16 +0000 (UTC)
From:      naddy@mips.inka.de (Christian Weisgerber)
To:        freebsd-alpha@freebsd.org
Subject:   Re: Problem with FreeBSD on AlphaStation 255/233
Message-ID:  <8s4td8$dhe$1@kemoauc.mips.inka.de>
References:  <8s4d41$2ptq$2@kemoauc.mips.inka.de> <Pine.BSF.4.21.0010120920540.53296-100000@beppo.feral.com>

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Matthew Jacob <mjacob@feral.com> wrote:

> I haven't looked at the code., Yes, of course it should. A disklabel is a
> disklabel.

But it is in different places on different platforms.  I suspect
this is not entirely gratuitous and somewhat affected by
platform-dependent bootstrap requirements.

On i386, the label is at sector 1, offset 0.  On alpha, it's at
sector 0, offset 64.  I've just looked through OpenBSD's collection
of /sys/arch/*/include/disklabel.h, and those two places seem to
be the most popular ones but by no means the only ones.  For the
MVME[68]8k machines it's at sector 0, offset 0, and the Atari and
HP300 platforms have more complicated locations.

-- 
Christian "naddy" Weisgerber                          naddy@mips.inka.de



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