From owner-freebsd-alpha@FreeBSD.ORG  Sun Oct 17 13:33:16 2004
Return-Path: <owner-freebsd-alpha@FreeBSD.ORG>
Delivered-To: freebsd-alpha@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 1DCE616A4CE
	for <freebsd-alpha@freebsd.org>; Sun, 17 Oct 2004 13:33:16 +0000 (GMT)
Received: from servww6.ww.uni-erlangen.de (servww6.ww.uni-erlangen.de
	[131.188.238.13])
	by mx1.FreeBSD.org (Postfix) with ESMTP id A083443D41
	for <freebsd-alpha@freebsd.org>;
	Sun, 17 Oct 2004 13:33:14 +0000 (GMT)
	(envelope-from ardelean@ww.uni-erlangen.de)
Received: from localhost (ardelean@localhost)ESMTP id i9HDX6s09335;
	Sun, 17 Oct 2004 15:33:06 +0200
Date: Sun, 17 Oct 2004 15:33:06 +0200 (CEST)
From: Gheorghe Ardelean <ardelean@ww.uni-erlangen.de>
To: <randall272-fbsd@yahoo.com>
In-Reply-To: <20041017112642.93053.qmail@web50610.mail.yahoo.com>
Message-ID: <Pine.LNX.4.33.0410171528070.9139-100000@servww6.ww.uni-erlangen.de>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
cc: freebsd-alpha@freebsd.org
Subject: Re: AS1000A with Mylex DAC960 RAID-5 as only disk
X-BeenThere: freebsd-alpha@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Porting FreeBSD to the Alpha <freebsd-alpha.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-alpha>,
	<mailto:freebsd-alpha-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-alpha>
List-Post: <mailto:freebsd-alpha@freebsd.org>
List-Help: <mailto:freebsd-alpha-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-alpha>,
	<mailto:freebsd-alpha-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 17 Oct 2004 13:33:16 -0000


Hi,

IIRC if the disk has already a partition (e.g. from ia32 or something
else) you have to zero out the first sectors in order to be reconized.

I am allways doing

dd if=/dev/zero of=/dev/mydiscdev count=100 bs=512

Unfortunately this should be done on an other machine or on other OS on
the same machine (if available). After this the disk is recognized.

I think this is written somewhere in the docs/faqs or mailarchives.

Regards,

Johny.