Have you tried using KVM instead of LXC? I have had issues with LXC and KVM works for me.
thanks but KVM fails too...
when I run make-base-vm for KVM (without the --lxc option) it just hangs. I know it's supposed to take a whlie, but it's been hours after the "Calling hook: bootstrap" message.
Then I tried another host, (ubuntu 12 instead of mint) and this time with LXC gbuild fails with "./bin/gbuild:199: must supply reference_datetime (RuntimeError)".