Using virt-manager (libvirt) to build a KVM debian etch guest on ubuntu intrepid via pxe boot produced the error: “No valid PXE rom found for network device”.

Reading LP Bug #193531 showed the need to install the ‘kvm-pxe’ package (sudo apt-get install kvm-pxe).

Then I got “Out of space while reading console startup output”, which I haven’t solved and I’m probably giving up on backporting to try to solve due to a number of hurdles.