Yes I just experienced this as well on 15.04 server on a vm. I have a btrfs root fs, did a "power off the machine" in virtual box and it would not boot after that. I ran "btrfs check --repair /dev/sda5" and was able to boot.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1451265 Title: dirty reboot always results in unbootable system if root is btrfs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/btrfs-tools/+bug/1451265/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs