Waterbuffalo, are you trying to clone a hard drive using Ubuntu 12.04?
I would like to inform that Linux is not an operating system supported by Intel, therefore I recommend you to post your inquire on Linux or Ubuntu communities. Next Unit of Computing — Supported operating systems
I have solved the issue. The key is to disable UEFI boot in the boot menu, and select Legacy boot only, and create the "master" disk. Any subsequent images of this disk will boot in the NUC provided it is set to Legacy boot.