@AvitarX LZO compression is not a red herring. It only appears to happen if you have a separate btrfs file-system from root AND you have balanced it (must be some difference between the way the root filesystem and home filesystems are checked on boot).
So steps to reproduce are:- 1. Fresh install of Natty with /boot as EXT4, / as BTRFS and /home as BTRFS. 2. Change mount options in /etc/fstab to include "compress=lzo". 3. Remount (mount -o remount /home) or reboot. 4. Balance filesystem "btrfs fi balance /home" and bingo borked btrfsck :) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/748340 Title: btrfsck fails with "unsupported option features", must [ignore] to boot -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
