Date: Sat, 14 Sep 2013 21:53:02 +0200 From: Daniel Gerzo <danger@FreeBSD.org> To: avg@freebsd.org, fs@freebsd.org Subject: Mounting from zfs failed with error 22 with gmirror Message-ID: <5234BE9E.1030308@FreeBSD.org>
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Hello list,
I have come across this thing and I don't have an idea what to do next.
I have this partition setup:
[root@rescue ~]# gpart show
=> 34 3907029101 ada0 GPT (1.8T)
34 6 - free - (3.0k)
40 1024 1 freebsd-boot (512k)
1064 83886080 2 freebsd-swap (40G)
83887144 3823141984 3 freebsd-zfs (1.8T)
3907029128 7 - free - (3.5k)
=> 34 3907029101 ada1 GPT (1.8T)
34 6 - free - (3.0k)
40 1024 1 freebsd-boot (512k)
1064 83886080 2 freebsd-swap (40G)
83887144 3823141984 3 freebsd-zfs (1.8T)
3907029128 7 - free - (3.5k)
[root@rescue ~]# gpart show -l
=> 34 3907029101 ada0 GPT (1.8T)
34 6 - free - (3.0k)
40 1024 1 boot0 (512k)
1064 83886080 2 swap0 (40G)
83887144 3823141984 3 sys0 (1.8T)
3907029128 7 - free - (3.5k)
=> 34 3907029101 ada1 GPT (1.8T)
34 6 - free - (3.0k)
40 1024 1 boot1 (512k)
1064 83886080 2 swap1 (40G)
83887144 3823141984 3 sys1 (1.8T)
3907029128 7 - free - (3.5k)
[root@rescue ~]# zpool import -f -o altroot=/mnt -o
cachefile=/boot/zfs/zpool.cache sys
[root@rescue ~]# zpool status
pool: sys
state: ONLINE
scan: none requested
config:
NAME STATE READ WRITE CKSUM
sys ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
gpt/sys0 ONLINE 0 0 0
gpt/sys1 ONLINE 0 0 0
errors: No known data errors
[root@rescue ~]# zdb
sys:
version: 28
name: 'sys'
state: 0
txg: 13622
pool_guid: 13749191682008517984
hostid: 966392425
hostname: 'rescue'
vdev_children: 1
vdev_tree:
type: 'root'
id: 0
guid: 13749191682008517984
children[0]:
type: 'mirror'
id: 0
guid: 10821644781744913225
metaslab_array: 30
metaslab_shift: 34
ashift: 12
asize: 1957443928064
is_log: 0
create_txg: 4
children[0]:
type: 'disk'
id: 0
guid: 12516881521540558071
path: '/dev/gpt/sys0'
phys_path: '/dev/gpt/sys0'
whole_disk: 1
create_txg: 4
children[1]:
type: 'disk'
id: 1
guid: 187152467666907385
path: '/dev/gpt/sys1'
phys_path: '/dev/gpt/sys1'
whole_disk: 1
create_txg: 4
[root@rescue ~]# zpool get bootfs sys
NAME PROPERTY VALUE SOURCE
sys bootfs sys/default/root local
[root@rescue ~]# gmirror status
Name Status Components
mirror/swap COMPLETE ada1p2 (ACTIVE)
ada0p2 (ACTIVE)
The problem is that while I do not load geom_mirror from loader.conf,
the machine boots fine, however as soon as I enable gmirror in
loader.conf the machine doesn't boot and errors with
/Trying to mount root from zfs:sys/default/root [].../
/Mounting from zfs:sys/default/root failed with error 22.
/
and it hangs in the prompt asking me to enter device to mount root from.
I found only this
http://lists.freebsd.org/pipermail/freebsd-current/2012-November/037910.html
email where avg@ mentions that it might be a bug in his code, but no
further followups. However that is almost a year ago and I got trapped
by this on 9.2-RC4.
Could anyone possibly give me some hints? (Please keep in in cc: as I am
not subscribed to fs@)
Thank you in advance!
Kind regards,
Daniel
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