It seems like somehow the trigger for this is the act of snapshotting... In combination with reinstalling kernel packages?
I've bee using apt-btrfs-snapshot, hence why it was (though still is) really tricky to pin down.. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/752506 Title: new -8 kernel makes update-grub ignore writing subvol option for btrfs -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs