There is a missing (empty) "lockold" parameter to write_kernel_entry for the alternative and kdumps sections. Strange how that slipped through.
** Attachment added: "adds an empty "lockold" parameter" http://librarian.launchpad.net/5446633/update-grub.feisty.lockold.diff ** Changed in: grub (Ubuntu) Status: Unconfirmed => Confirmed -- [Feisty] update-grub fails mysteriously on feisty https://launchpad.net/bugs/73966 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs