Found the issue. Do the following: > sudo debconf-show grub-pc > sudo dpkg-reconfigure grub-pc
The last screen sets the default GRUB device(s). See: https://askubuntu.com/questions/135741/how-should-one-set-the-grub- pc-packages-install-devices-debconf-setting ** Changed in: ubiquity (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769404 Title: grub is installed to /dev/sda by default and fails To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1769404/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs