This triggers for me without any snapshots or rollbacks, just by having a btrfs / with multiple devices (currently in degraded mode, not sure if that's required to trigger it). Fresh server install of 13.04.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/758951 Title: grub-probe fails on btrfs root with non-0 default subvolume id To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/758951/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs