Date: Wed, 19 Oct 2011 14:14:41 -0400 From: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org> To: doug@safeport.com Cc: freebsd-questions@freebsd.org Subject: Re: multi-boot Message-ID: <44pqhsu9v2.fsf@be-well.ilk.org> In-Reply-To: <alpine.BSF.2.00.1110191127550.31411@oceanpt.safeport.com> (doug@safeport.com's message of "Wed, 19 Oct 2011 11:53:19 -0400 (EDT)") References: <alpine.BSF.2.00.1110181751570.78096@oceanpt.safeport.com> <44hb3588my.fsf@lowell-desk.lan> <alpine.BSF.2.00.1110191127550.31411@oceanpt.safeport.com>
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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.
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