Comment 3 for bug 622588

You may be correct that it is an innocuous error, (I'm not using PXE boot on my VMs so don't see any otherwise missing functionality) but afaik it never used to appear on lucid and now appears on maverick packages of kvm so its technically a regression.

Having investigated the issue further it seems the `kvm-pxe` package contains this bootroom and installing it makes the warning message go away, so I'm not sure why its not an automatic depends for qemu-kvm?