W dniu 2011-12-21 20:06, Chris Mason pisze:
On Wed, Dec 21, 2011 at 01:54:06PM +0000, Malwina Bartoszynska wrote:
Hello,
after unmounting btrfs partition, I can't mount it again.
root@xxx:~# btrfs device scan
Scanning for Btrfs filesystems
root@xxx:~# mount /dev/sdb /data/osd.0/
mount: wrong fs type, bad option, bad superblock on /dev/sdb,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
root@xxxx:~# dmesg|tail
[57192.607912] device fsid ed25c604-3e11-4459-85b5-e4090c4d22d0 devid
2 transid14429 /dev/sda
[57204.796573] end_request: I/O error, dev fd0, sector 0
[57231.660913] device fsid ed25c604-3e11-4459-85b5-e4090c4d22d0 devid 1
transid 14429 /dev/sdb
[57231.680387] parent transid verify failed on 424308420608 wanted 6970
found 8959
[57231.680546] parent transid verify failed on 424308420608 wanted 6970
found 8959
[57231.680705] parent transid verify failed on 424308420608 wanted 6970
found 8959
[57231.680861] parent transid verify failed on 424308420608 wanted 6970
found 8959
[57231.680869] parent transid verify failed on 424308420608 wanted 6970
found 8959
[57231.680875] Failed to read block groups: -5
[57231.704165] btrfs: open_ctree failed
Can you tell us more about this filesystem? Was there an unclean
shutdown or did you just unmount, mount again?
The confusing thing is that all of your disks seem to have the same copy
of the block, so it looks like things were written properly.
-chris
There was no shutdown before this, filesystem was just unmounted(which
looked as properly done - no errors). Then tried to mount it again.
Is there way of fixing it?
--
Malwina Bartoszynska
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