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Date:      Thu, 21 Apr 2011 12:40:14 +0200
From:      Wolfgang Riegler <wolfgang@riegler.homeip.net>
To:        FreeBSD Questions Mailing List <freebsd-questions@freebsd.org>
Cc:        freebsd-fs@freebsd.org
Subject:   Cannot boot from ZFS raidz1
Message-ID:  <201104211240.14357.wolfgang@riegler.homeip.net>

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Hi,

I have used this setup guide (http://wiki.freebsd.org/RootOnZFS/GPTZFSBoot/RAIDZ1) line by line with the 8.2-RELEASE DVD for amd64 to install a VirtualBox guest for testing.
The only difference to the setup guide: I use a SAS controler, so devicename is da0, da1, da2 instead of ad0, etc. I tried it with a SATA controler as well, but no differences.

After reboot, I get the following error from the loader:
ZFS: i/o error - all block copies unavailable
ZFS: can't read MOS object directory
Can't find root filesystem - giving up
ZFS: unexpected object set type 0
ZFS: unexpected object set type 0

FreeBSD/x86 boot
Default: zroot:/boot/kernel/kernel
boot:
ZFS: unexpected object set type 0

FreeBSD/x86 boot
Default: zroot:/boot/kernel/kernel
boot:


I hope someone can give an hint, what's going wrong here.

Thanks in advance

Wolfgang



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