For some reason this patch did not get forwarded to my email. +1 and pushed, but I'd like to see a follow-on patch that removes the need to strip the '/dev/null' before generating the XML. That is, I think we need the code to simply handle a dev->source == NULL rather than keep the 'null placeholder.' -- Chip Vincent Open Virtualization IBM Linux Technology Center cvincent(a)linux.vnet.ibm.com