From owner-freebsd-questions@FreeBSD.ORG Mon Apr 17 02:12:02 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 A810816A400 for ; Mon, 17 Apr 2006 02:12:02 +0000 (UTC) (envelope-from ababcock@panix.com) Received: from mail1.panix.com (mail1.panix.com [166.84.1.72]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6128D43D46 for ; Mon, 17 Apr 2006 02:12:02 +0000 (GMT) (envelope-from ababcock@panix.com) Received: from panix1.panix.com (panix1.panix.com [166.84.1.1]) by mail1.panix.com (Postfix) with ESMTP id 445995D79C for ; Sun, 16 Apr 2006 22:11:28 -0400 (EDT) Received: (from ababcock@localhost) by panix1.panix.com (8.11.6p3/8.8.8/PanixN1.1) id k3H2BS203426 for freebsd-questions@freebsd.org; Sun, 16 Apr 2006 22:11:28 -0400 (EDT) Date: Sun, 16 Apr 2006 22:11:28 -0400 From: Amanda Babcock Furrow To: freebsd-questions@freebsd.org Message-ID: <20060417021128.GA5028@panix.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.10i Subject: boot0: is booting from non-BIOS-recognized disk possible? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Apr 2006 02:12:02 -0000 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? Thanks, Amanda