Thanks Joseph & Doug, I really should have mentioned I was referring only to the build OS.
I'm using Xen as a host, and according to the gitian documentation I found, only KVM and VirtualBox are known to work. Could this be a massive job to configure?
Also, Ubuntu is a strange choice for build machine, why something office/consumer focused and not Debian? (i.e. developer focused) Everything added to 14.04 that isn't present in it's Wheezy base is unnecessary, as well as a potential source of trouble. Why Ubuntu, there seems to be no compelling reason at all. Or is there something I'm glossing over?
The gitian-builder tools only support KVM, LXC, and maybe VirtualBox (apparently make-base-vm can't actually make VirtualBox VMs). I think Xen support is something that devrandom (
https://github.com/devrandom) would know more about.
As for the Ubuntu choice, the gitian-builder tools only support Ubuntu VMs (at least right now). I don't think there is anything preventing Debian VM support other than the fact that no one seems to have tried it. But that would be something that has to be changed with gitian-builder (
https://github.com/devrandom/gitian-builder) rather than Armory. I'm not sure what ATI would want to go with if there was a choice between Debian and Ubuntu.