booting of large raidz2 fails - all block copies unavailable

[Pawel Jakub Dawidek]

On Wed, Nov 02, 2011 at 07:32:19PM -0000, Steven Hartland wrote:
> Just installed a machine using mfsbsd 8.2-RELEASE with raidz2 across
> 14 x 3TB Disks but boot fails with the following at the boot loader:-
> ZFS: i/o error - all block copies unavailable 
> 
> There seems to have been several threads on this in the past but
> all seem to have been resolved a long time ago.
> 
> I tried 9.0rc1 mfsbsd and that just sits at a spinney cursor with
> no signs of any progress :(
> 
> Any advice?

Yes, there were plenty of fixes in ZFS boot code in HEAD. They are not
in 9.0-RC1 and not yet in 9-STABLE. Could you try those:

	http://people.freebsd.org/~pjd/zfsboot/

You need to copy zfsloader to /boot/ directory of your root dataset and
install gptzfsboot using gpart(8).

-- 
Pawel Jakub Dawidek                       http://www.wheelsystems.com
FreeBSD committer                         http://www.FreeBSD.org
Am I Evil? Yes, I Am!                     http://yomoli.com
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