I use c and at grub> prompt insmod part_msdos. Both windows and Ubuntu then booted ok (a little slow it seemed in switching to Ubuntu, windows is always slow so I could not tell any difference.)
Glad you already had a fix. How would I have found this. I occasionally review grub errors and other documentation. Thanks, Fred -- grub-pc in gpt drive does not boot other drives https://bugs.launchpad.net/bugs/604743 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