Proxmox: Enable Beta (Testing) Repository Channel

Based on http://pve.proxmox.com/wiki/Package_repositories

To Enable the PVE testing (Proxmox testing channel) do the following:

vi /etc/apt/sources.list

Insert

# PVE packages provided by proxmox.com
 deb http://download.proxmox.com/debian squeeze pvetest

Then update the system by using:

apt-get update;apt-get dist-upgrade