Comment 7 for bug 1623261

Nice! xorriso command from @rienspace worked for me!

I tweaked the command slightly to more closely mirror the existing cubic code, and make it a smaller change while still getting the desired UEFI support.

We would need to add dependencies for xorriso and isolinux - and I just checked the control file on trunk and it seems we're missing the dependency for genisoimage (provides mkisofs) which should have been included already since the cubic code already needs mkisofs to work properly.

I've attached patches to update utilities.py and the control file from the current trunk. Hope this helps!