"We ended last time after configuring our first unprivileged Xen
domain. In this article, we complete our cluster and then test it
using an open-source parallel ray tracer. The first thing we need
to do is create additional slave nodes to be used with the cluster.
So, let's get down to business.
"Once you have created and configured an unprivileged domain
using the instructions from the previous section, you easily can
duplicate this domain as described below. Start by making a backup
image of the Debian_Slave1_Root filesystem. You only need to do
this step once. Note that the tar command probably will take a few
minutes to complete, as it is archiving an entire