IIRC, the options are Continue ( in EFI mode ) and Cancel ( and use bios mode instead ). The buttons probably could be worded a little better.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1575092 Title: Reinstall of Ubuntu 16.04 over failed upgrade of Ubuntu (15.10 -> 16.04) results in grub installation failure To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1575092/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs