After looking around some more about grub2, it seems like this a 'feature' designed to avoid this?
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/420933 -- grub installs to wrong hard drive leaving ubuntu invisible https://bugs.launchpad.net/bugs/462127 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