Date: Wed, 16 Mar 2011 14:44:49 -0700 From: merlyn@stonehenge.com (Randal L. Schwartz) To: DStaal@usa.net Cc: freebsd-questions@freebsd.org Subject: Re: Upgrading FreeBSd when using a zfs-only installation? Message-ID: <86ipviviy6.fsf@red.stonehenge.com> In-Reply-To: <aba631748e36b0a7e5b17de1102bd5a8.squirrel@www.magehandbook.com> (Daniel Staal's message of "Wed, 16 Mar 2011 16:14:36 -0400") References: <21D3DE2D-2C1E-4C7B-860E-C637C746150A@forsythia.net> <86lj0j9cwd.fsf@red.stonehenge.com> <AANLkTin2gSwVE2DeFLq73SE1ef4AYiG37o3hLcnHo54S@mail.gmail.com> <86hbb6aply.fsf@red.stonehenge.com> <78E237A573166F9C62551A78@mac-pro.magehandbook.com> <864o76abzp.fsf@red.stonehenge.com> <86hbb2x68l.fsf@red.stonehenge.com> <aba631748e36b0a7e5b17de1102bd5a8.squirrel@www.magehandbook.com>
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>>>>> "Daniel" == Daniel Staal <DStaal@usa.net> writes: Daniel> On Wed, March 16, 2011 2:36 pm, Randal L. Schwartz wrote: >> Randal> SOMEONE here knows. Please help. >> >> So, nobody knows? >> >> Most of the other answers were about a source-code upgrade, not a binary >> upgrade. Daniel> I thought Matthew Seamans' answer sounded pretty definitive: >> A system update via freebsd-update or otherwise won't touch whatever >> bootblocks you have installed. So if you have already installed >> gptzfsboot and your system already boots ZFS v12 then it will continue to >> boot ZFS v12 without your touching anything to do with boot blocks. But this was absolutely *not* the case with 8.0 to 8.1. I had tried it naively in a VM, and thank goodness, because the VM failed to boot. Then I googled, and found http://forums.freebsd.org/showpost.php?p=94557&postcount=19 which when I followed, and it worked fine. Thus, when I did my "live" 8.0 to 8.1 upgrades, I followed that extra "gpart bootcode" step, and everything worked fine. Therefore, Matthew Seaman can't be trusted with his answer. He apparently did not boot a ZFS-on-root disk with a freebsd-update from 8.0 to 8.1, or he would not have said what he did. The question I have is, does anyone know *definitively* if the same thing that broke 8.0 to 8.1 will also likely occur in 8.1 to 8.2, or does the bootloader in 8.2 now contain what /boot/gptzfsboot contained in 8.1? As in, does FreeBSD 8.2 now support *native* ZFS booting, or will it forever be a kluge? -- Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095 <merlyn@stonehenge.com> <URL:http://www.stonehenge.com/merlyn/>; Smalltalk/Perl/Unix consulting, Technical writing, Comedy, etc. etc. See http://methodsandmessages.posterous.com/ for Smalltalk discussion
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