Thanks. This is obviously filesystem corruption of some kind (and I don't know why; it's particularly weird that it seems to happen repeatably), but for this particular case I'll make grub-common's init script check for a zero-sized file on boot, and if so then make it just delete it.
status fixcommitted ** Changed in: grub2 (Ubuntu) Status: New => Fix Committed -- invalid: environment block https://bugs.launchpad.net/bugs/439784 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs