This isn't really a bug. Given two identical install images on different media, the system can't figure out which one you intended to use. Instead of giving it both, just give it the one you intend to use.
** Changed in: grub2 (Ubuntu) Status: New => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1198846 Title: [efi boot to unexpected media] plug in live usb and DVD at the same time, try to boot from DVD but it comes to usb To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1198846/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs