I'm working on fixing this with the aid of grub-mount (a utility available in an upstream GRUB branch). With any luck I should get that done by 11.04.
** Changed in: os-prober (Ubuntu) Assignee: (unassigned) => Colin Watson (cjwatson) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/683355 Title: os-prober fails to find OSes on uncleanly-unmounted filesystems -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs