From owner-freebsd-questions@FreeBSD.ORG Tue Apr 18 14:17:06 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org 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 E367116A401 for ; Tue, 18 Apr 2006 14:17:06 +0000 (UTC) (envelope-from freebsd-questions-local@be-well.ilk.org) Received: from mail7.sea5.speakeasy.net (mail7.sea5.speakeasy.net [69.17.117.9]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8DD9643D48 for ; Tue, 18 Apr 2006 14:17:06 +0000 (GMT) (envelope-from freebsd-questions-local@be-well.ilk.org) Received: (qmail 28456 invoked from network); 18 Apr 2006 14:17:06 -0000 Received: from dsl092-078-145.bos1.dsl.speakeasy.net (HELO be-well.ilk.org) ([66.92.78.145]) (envelope-sender ) by mail7.sea5.speakeasy.net (qmail-ldap-1.03) with SMTP for ; 18 Apr 2006 14:17:06 -0000 Received: by be-well.ilk.org (Postfix, from userid 1147) id 9461528423; Tue, 18 Apr 2006 10:17:05 -0400 (EDT) Sender: lowell@be-well.ilk.org To: Amanda Babcock Furrow References: <20060417021128.GA5028@panix.com> From: Lowell Gilbert Date: 18 Apr 2006 10:17:05 -0400 In-Reply-To: <20060417021128.GA5028@panix.com> Message-ID: <44fykb9dem.fsf@be-well.ilk.org> Lines: 25 User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: freebsd-questions@freebsd.org Subject: Re: boot0: is booting from non-BIOS-recognized disk possible? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: freebsd-questions@freebsd.org List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 Apr 2006 14:17:07 -0000 Amanda Babcock Furrow writes: > I have read the boot0cfg, disklabel (I have FreeBSD 4.9), and fdisk > manpages trying to figure out if boot0 can solve my problem. I did > not find the answer there, or in http://www.freebsd.org/doc/faq/disks.html > or the freebsd-questions archives. > > I would like to be able to boot from my Seagate ST3120814A, which is > not compatible with my BIOS (Award Modular BIOS v4.51PG, BIOS string > 08/21/97-580VPX-VIA83669-2A5LD000C-00, VT 580VX MMX motherboard). > The BIOS, for which no update was ever issued, will hang during disk > detection unless I disable the Seagate by setting it to "None" in > the BIOS (as opposed to "Auto" and "User", which hang). However, > once I boot FreeBSD from an older disk, the Seagate is detected as > /dev/ad3 and partitions from it can be mounted. > > I understand that boot0 can be configured to boot from a second disk > using the -s 5 argument of boot0cfg. However, the boot0cfg man page > does not go into great detail. Can boot0 boot from a disk which is > disabled in BIOS but accessible from FreeBSD, or only from disks which > the BIOS is able to detect? The latter. It can, however, use the "packet interface" as well as the old cylinder-based BIOS interface; perhaps that will work for you.