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[linux-lvm] snapshots & reiserfs



Hi

Im sure this is a FAQ but I can't find it.

I want to be able to use snapshots on my beta8 / reiserfs (stock 2.5.7)
system. I can create a snapshot OK, but when I try to mount it I get an
error saying we can't replay the logs since we are mounted read only.

Also, i've just noticed this in my dmesg:

lvm -- _pv_get_number failed for rdev = 0
lvm -- giving up to snapshot /dev/vg00/lvol6 on /dev/vg00/greebo_snap:
couldn't prepare kiovec blocks (start probably isn't block aligned)
lvm - lvm_map: ll_rw_blk for inactive LV /dev/vg00/greebo_snap
lvm - lvm_map: ll_rw_blk for inactive LV /dev/vg00/greebo_snap
read_super_block: unable to read superblock on dev 3a:0f
read_old_super_block: try to find super block in old location
lvm - lvm_map: ll_rw_blk for inactive LV /dev/vg00/greebo_snap
read_old_super_block: unable to read superblock on dev 3a:0f
lvm - lvm_map: ll_rw_blk for inactive LV /dev/vg00/greebo_snap
FAT bread failed

Any ideas? snapshots seem really cool, and i want to play :)

James



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