Will one of these options work?
live CD with a portable USB hard drive formatted to est4 mounted at /.
VBox Ubuntu image, start 12.04 app with external USB hard drive formatted to est4 mounted at /.
Ineed a quick stable solution, my daughter needs both os for her research project, and I am not a gunslinger. But will be her main support. I have Win7 ('09 version) with 12.04 running now, but need to coexest with Win8/uefi/secureboot.