Date: Sun, 14 Jun 2009 00:09:28 -0500 From: "Jonathan Noack" <noackjr@alumni.rice.edu> To: noackjr@alumni.rice.edu Cc: freebsd-fs@freebsd.org Subject: Re: Booting from ZFS raidz Message-ID: <e6a5ee8d701b0d3393a6d3966ebfe634.squirrel@www.noacks.org> In-Reply-To: <9cc826f0720e1624489dd6e6d384babc.squirrel@www.noacks.org> References: <9461581F-F354-486D-961D-3FD5B1EF007C@rabson.org> <20090201072432.GA25276@server.vk2pj.dyndns.org> <246ecf0c87f944d70c5562eeed4165c9@mail.rabson.org> <9cc826f0720e1624489dd6e6d384babc.squirrel@www.noacks.org>
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On Fri, May 15, 2009 19:07, Jonathan Noack wrote: > On Thu, May 14, 2009 10:25, Doug Rabson wrote: >> I fixed a bug in the patch. Try this version: >> http://people.freebsd.org/~dfr/raidzboot-14052009.diff > > I know the bug fix was for booting from degraded pools, but I can at least > give you a "no regression" report. I just set up a new amd64 box and was > able to boot from a raidz1 pool using your latest patch. > > Getting this working from scratch was tedious but not too complicated. I > followed lulf's instructions > (http://blogs.freebsdish.org/lulf/2008/12/16/setting-up-a-zfs-only-system/) > using the May snapshot fixit CD. Only differences were that I set up all > 4 disks with gpart (identically), created a raidz1 pool, and used a > patched gptzfsboot that I cross-compiled on my 7.2 i386 box for the > bootcode (applied to all 4 disks). > > If only I had remembered to patch my /usr/src tree before rebuilding world > and rebooting... *sigh* Once more unto the fixit breach... :) This (and the committed version) had been working fine for me on my stock amd64 CURRENT system until I rebuilt world/kernel on 5/30 and rebooted. I get the following error on boot (hand transcribed so hopefully I didn't screw it up): ************************************************************ ZFS: i/o error - all block copies unavailable ZFS: can't read object set for dataset lld Can't find root filesystem - giving up ZFS: unexpected object set type lld ZFS: unexpected object set type lld FreeBSD/i386 boot Default: tank:/boot/kernel/kernerl boot: ZFS: unexpected object set type lld FreeBSD/i386 boot Default: tank:/boot/kernel/kernel boot: ************************************************************ The previously working world/kernel was from 5/26. I haven't had much time to troubleshoot until today. I can use the fixit CD to access the ZFS pool with no issues; the problem appears to just be the boot code. I cross-built a fresh world on my i386 system today, reinstalled everything in /boot, reinstalled gptzfsboot, and still got the same results. What steps should I take to troubleshoot and resolve this? Thank, -Jon
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