There seems to be some issue over changing the names of the device that a btrfs filesystem lives on: # lvcreate scratch -n fstest -L 2G Logical volume "fstest" created # mkfs -t btrfs /dev/scratch/fstest WARNING! - Btrfs v0.18-ge3b0f66 IS EXPERIMENTAL WARNING! - see http://btrfs.wiki.kernel.org before using fs created label (null) on /dev/scratch/fs1 nodesize 4096 leafsize 4096 sectorsize 4096 size 2.00GB Btrfs v0.18-ge3b0f66 # mount /dev/scratch/fstest /mnt # umount /mnt # lvrename scratch fstest derek Renamed "fstest" to "derek" in volume group "scratch" # mount /dev/scratch/derek /mnt mount: /dev/mapper/scratch-derek: can't read superblock # lvrename scratch derek fstest Renamed "derek" to "fstest" in volume group "scratch" # mount /dev/scratch/fstest /mnt [success] The rename works properly on a completely virgin filesystem, but not on one that's been mounted and unmounted (as above). Hugo. -- === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- Happiness is mandatory. Are you happy? ---
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