I've did a clean upgrade from grub-legacy to grub-pc on the released version of karmic and this issue is no longer present. It worked as described in Felixes comment #3.
** Changed in: grub2 (Ubuntu) Status: Confirmed => Fix Released -- upgrade-from-grub-legacy writes to MBR even if the instance of grub it is replacing isn't there https://bugs.launchpad.net/bugs/385053 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