[Woody] Mounting LVM-snapshots with ext3 + ACL + user_xattr-Patch
Dear all,
I am using a Woody system, running a Vanilla 2.4.23 kernel from
ftp.kernel.org and the ACL+XATTR-Patch vom acl.bestbits.at.
Working with ext3 and ACLs on a logical volume works fine, fast and
stable. But I have some troubles mounting a snapshot of a live lvm-
volume named /dev/RAID5/TEMP:
fsb01:~# mount | grep TEMP
/dev/RAID5/TEMP on /mnt/berlin/TEMP type ext3 (rw,acl,user_xattr)
To create a snapshot I used:
fsb01:~# lvcreate --size 250m --snapshot --name TEMP1500 /dev/RAID5/TEMP
[... snipped ...]
lvcreate -- logical volume "/dev/RAID5/TEMP1500" successfully created
The special device has been successfully created:
fsb01:~# ls -la /dev/RAID5/TEMP1500
brw-rw---- 1 root disk 58, 9 Jan 5 15:20 /dev/RAID5/TEMP1500
However, mounting this snapshot fails:
fsb01:~# mount -o ro /dev/RAID5/TEMP1500 /mnt/berlin/Snapshots/TEMP
mount: wrong fs type, bad option, bad superblock on /dev/RAID5/TEMP1500,
or too many mounted file systems
Followed the discussion on RedHat Bugzilla
(https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=88115)
I tried to specify a superblock using the mount-options
-o ro,sb=32768 and
-o ro,sb=819200
but failed also. Both superblock copies are identical to /dev/RAID5/TEMP.
An additional "-t ext3" failed also.
Any help for snapshoting and mounting of a live LVM-systems together
with ACLs are highly welcome.
Thanks, Oliver
--
pro|business Berlin AG oschade@probusiness.de
Potsdamer Platz 11 http://www.probusiness.de/
10785 Berlin Tel: +49 030 259 378-0
Germany Fax: +49 030 259 378-22
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