I got the same issue when upgrading from 11.10 to 12.04, always on memtest. Killing grub-mount work around the issue.
I just got an upgrade of the kernel and I got the same issue. I'm not using LVM. Just plain ext4 partition on a goo'old macbook 5.1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/970260 Title: Setting up memtest86+ hangs because of "grub-probe: error: unknown filesystem" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/memtest86+/+bug/970260/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
