From owner-freebsd-questions@FreeBSD.ORG Wed Oct 19 20:19:22 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7E9451065675 for ; Wed, 19 Oct 2011 20:19:22 +0000 (UTC) (envelope-from doug@fledge.watson.org) Received: from fledge.watson.org (fledge.watson.org [65.122.17.41]) by mx1.freebsd.org (Postfix) with ESMTP id 24FA98FC0C for ; Wed, 19 Oct 2011 20:19:22 +0000 (UTC) Received: from fledge.watson.org (localhost.watson.org [127.0.0.1]) by fledge.watson.org (8.14.4/8.14.4) with ESMTP id p9JKJLlC082985 for ; Wed, 19 Oct 2011 16:19:21 -0400 (EDT) (envelope-from doug@fledge.watson.org) Received: from localhost (doug@localhost) by fledge.watson.org (8.14.4/8.14.4/Submit) with ESMTP id p9JKJLvD082982 for ; Wed, 19 Oct 2011 16:19:21 -0400 (EDT) (envelope-from doug@fledge.watson.org) Date: Wed, 19 Oct 2011 16:19:21 -0400 (EDT) From: doug To: freebsd-questions@freebsd.org In-Reply-To: Message-ID: References: <44hb3588my.fsf@lowell-desk.lan> <44pqhsu9v2.fsf@be-well.ilk.org> User-Agent: Alpine 2.00 (BSF 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.3 (fledge.watson.org [127.0.0.1]); Wed, 19 Oct 2011 16:19:21 -0400 (EDT) Subject: Re: multi-boot (fixed) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: doug@safeport.com List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Oct 2011 20:19:22 -0000 > On Wed, 19 Oct 2011, Lowell Gilbert wrote: > >> doug@safeport.com writes: >> >>> On Wed, 19 Oct 2011, Lowell Gilbert wrote: >>> >>>> doug@safeport.com writes: >>>> >>>>> I have a system with two physical disks with a version of FreeBSD >>>>> installed on each disk. With various 7.x systems I had: >>>>> >>>>> F1 disk1 on slices ads5x >>>>> F5 disk2 on slices ads6x >>>>> >>>>> I installed 8.2 on disk2, incorrectly saying leave the mbr alone. So >>>>> when I boot from the second disk I get >>>>> >>>>> F6 PXE >>>>> Boot: F1 >>>>> >>>>> I can then hit F1 or wait and all goes okay. I tried using sysinstall >>>>> to rewrite the FBSD boot manager but that not effect any change. Must >>>>> I rewrite the mbr on disk 1 also? >>>> >>>> That's what I would expect to have to do... >>> >>> Pre 8.2 the behavior the selected system just boot without the extra >>> message. I had a 7.0 and a 7.4 system installed. I replaced the 7.4 >>> system with 8,2 With the boot setup I understand the FreeBSD boot >>> manager would be on sector 0 track 0 of disk 1. The boot record for >>> disk 1 is in the first logical sector for the drive. The boot record >>> for disk 2 should be similarly placed on disk 2. >>> >>> What I think is missing is putting the boot manager on disk 2. If that >>> is the case, is there a way to do that without reinstalling? >> >> boot0cfg(8) from the system that does boot. >> Or boot in "rescue" mode from a CD (or other removable media) >> and use sysinstall. > > thanks This is a classic cast (I think) of RTFM. Thanks for hanging in with me. The correct answer is install the standard boot record on disk 2. I think I can interpert the handbook that way. I did this with sysinstall as my second attempt at boot0cfg seriously broke the system on disk 2. boot0cfg is left to me as homework. This is a case where I may be able to get from the code what I could not from the man page. I do not know if part of the different is the BIOS has raid0 build in which almost works. I just turned this off giving me two test systems.