From owner-freebsd-questions@FreeBSD.ORG Sat Mar 5 16:26:13 2005 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C11B116A4CE for ; Sat, 5 Mar 2005 16:26:13 +0000 (GMT) Received: from male.aldigital.co.uk (male.thebunker.net [213.129.64.13]) by mx1.FreeBSD.org (Postfix) with ESMTP id 476E543D1F for ; Sat, 5 Mar 2005 16:26:13 +0000 (GMT) (envelope-from matthew@thebunker.net) Received: from gravitas.thebunker.net (gateway.ash.thebunker.net [213.129.64.4]) (using TLSv1 with cipher EDH-RSA-DES-CBC3-SHA (168/168 bits)) (No client certificate requested) by male.aldigital.co.uk (Postfix) with ESMTP id 7E6249774E; Sat, 5 Mar 2005 16:26:06 +0000 (GMT) Received: from gravitas.thebunker.net (localhost [127.0.0.1]) j25GPsP2083316; Sat, 5 Mar 2005 16:25:54 GMT (envelope-from matthew@gravitas.thebunker.net) Received: (from matthew@localhost) by gravitas.thebunker.net (8.13.3/8.13.3/Submit) id j25GPndW083315; Sat, 5 Mar 2005 16:25:49 GMT (envelope-from matthew) Date: Sat, 5 Mar 2005 16:25:49 +0000 From: Matthew Seaman To: joe mcguckin Message-ID: <20050305162549.GB14926@gravitas.thebunker.net> Mail-Followup-To: Matthew Seaman , joe mcguckin , freebsd-questions@freebsd.org References: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="U+BazGySraz5kW0T" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.8i cc: freebsd-questions@freebsd.org Subject: Re: Installing 4.11, disk probing problem X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 05 Mar 2005 16:26:13 -0000 --U+BazGySraz5kW0T Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Mar 04, 2005 at 05:35:59PM -0800, joe mcguckin wrote: > Installing on an Intel 815 motherboard, the installer insists that the ATA > disk is ar0. >=20 > Is this normal? >=20 > At boot time I get diagnostic messages about ar0 broken raid, etc ar0 is some sort of RAID array, rather than a plain disk which would appear as ad0. If you don't want to use a RAIDed system disk, then (assuming you can boot the machine) run: # atacontrol list which will tell you how the system thinks the RAID is set up. Take note of the channel number. To delete the raid, and turn the system back into using just ordinary drives, use: # atacontrol delete N where N is the channel number. Note that this *will* make your machine unbootable, as all of the filesystems will be inaccessible. If the original RAID was a RAID1 type (ie. a mirror) you could edit /etc/fstab to change the 'ar0' bits to 'ad0' and reboot (you'll get an 'error mounting root' and manually have to fill in the correct root partition the first time you do that). Otherwise you'ld have to just re-install from scratch and overwrite those drives. Note: don't confuse the 'ar0' RAID array with ar(4) -- an ancient type of ISA network interface card, or ar(1), a command used to create libraries of object code. ATA RAID is documented in the ata(4) and atacontrol(8) man pages. Cheers, Matthew --=20 Dr Matthew J Seaman MA, D.Phil. 8 Dane Court Manor School Rd PGP: http://www.infracaninophile.co.uk/pgpkey Tilmanstone Tel: +44 1304 617253 Kent, CT14 0JL UK --U+BazGySraz5kW0T Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (FreeBSD) iQCVAwUBQindjZr7OpndfbmCAQI7egQAgeo9++cjQGLnbAsN17iXbHduRxdqOqVT hggLaTvbesVu1LP0k40AjkYKMpDe7D8NnDJtl1CqWfKNg3vNna11rhu0HCzqnBQg o6XkMD0q4JQcr4+UjKnmUShK+XsAesHeDG2G8c1xND9jrhijqragPK5RWEp6Cpye OJYpJ89qfgw= =DXqH -----END PGP SIGNATURE----- --U+BazGySraz5kW0T--