I am trying to create a minimal Xen/Dom0 based on Ubuntu 12.04. I am using upstream Xen 4.1.1 with a Linux 3.1.2 Dom0 kernel. I am building Xen and Linux offline i.e. on another server, creating deb packages (I back-ported "make deb" from Xen 4.2 to Xen 4.1.1) that I then install on the minimal system. All this is happening correctly, Xen and Dom0 comes up. I am able to do basic commands like "xl list" and "xl info". However when I go to bring up a Ubuntu pv guest I get the following error: root@knc-11588:~# xl create -c /etc/xen/ubuntu-12.04-1pv Parsing config file /etc/xen/ubuntu-12.04-1pv Unable to attach console Here is the DomU config: builder = ''linux'' bootloader ="pygrub" memory = 4096 name = ''ubuntu-12.04-1pv'' vcpus = 2 vif = [ ''type=vif'' ] disk = [''phy:/dev/xvdd,xvda,w''] I do not see any log files being created in /var/log/xen/. Nor do I see any output after initial boot from "xl dmesg" or "dmesg". I do realize the "make deb" process does not generate any dependencies so I suspect that I am missing some packages. I also know on Ubuntu installing the tools needs to be done with "make install-tools PYTHON_PREFIX_ARG=". Maybe that is not being simulated when going deb route? Does someone know how to debug this issue? Thanks, AP