Could you please paste the output of then commands: $ sudo os-prober $ sudo sfdisk -l /dev/sda
Do you mean that sda8 is a native ext3/4 partition and recognized as a MS-DOS partition or that Natty is installed on a file on sda8 (mounted as a loop device with wubi for instance) ? Thanks. ** Changed in: os-prober (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/791707 Title: New Version of grub in oneric (11.10) is unable to find natty (11.04) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/791707/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs