Xen-test-debian

Installing Xen basic packages in Debian
Udpate the APT repository

apt-get update

Install the Xen hypervisor. Note that the version may have changed: search for the current one using 'apt-get search xen-hypervisor'. Default hypervisor supports up to 4GB of physical RAM, the -pae version up to 64GB of physical RAM (we are considering the former here).

apt-get install xen-hypervisor-3.0.3-1-i386

Install the Xen kernel:

apt-get install linux-image-xen-686

Install Xen tools:

apt-get install xen-tools

Install the libc6-xen (I'm not sure what it's for or even if its installegion could be omitted):

apt-get install libc6-xen

All packages in the same command:

apt-get install xen-hypervisor-3.0.3-1-i386 linux-image-xen-686 xen-tools libc6-xen

Uselful references
http://www.debian-administration.org/articles/396