mkfs.btrfs /dev/sdb mkdir /tmp/mnt mount /dev/sdb /tmp/mnt cd /tmp/mnt btrfs quota enable . btrfs subvol create foo btrfs qgroup create 1/0 btrfs qgroup assign 0/257 1/0 btrfs subvol snapshot foo bar btrfs qgroup assign 0/258 1/0 cd .. umount /dev/sdb mount /dev/sdb /tmp/mnt # Still mountable! cd mnt btrfs qgroup destroy 1/0 cd .. umount /dev/sdb mount /dev/sdb /tmp/mnt # Oops, no longer mountable, even in recovery mode! Help! BTW, I'm not a mailing list subscriber. Thanks, -- "They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety." -- Benjanmin Franklin -- Eric Hopper (http://www.omnifarious.org/~hopper) --
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