As Citrix XenServer 6.0.2 does not offer template for Debian Wheezy we have to install it in two steps.
First install Debian Squeeze as usual.
Second step is to upgrade Squeeze to Wheezy. Here are the sub-steps:
As it is a new install you do not have to update your system but for sure you can type the following commands:
apt-get update apt-get upgrade apt-get dist-upgrade
Also check that there are no packages are on hold or in any half installed state:
dpkg --audit dpkg --get-selections | grep hold
Now update /etc/apt/sources.list to the following:
# deb http://ftp.hu.debian.org/debian/ wheezy main deb http://ftp.hu.debian.org/debian/ wheezy main deb-src http://ftp.hu.debian.org/debian/ wheezy main deb http://security.debian.org/ wheezy/updates main deb-src http://security.debian.org/ wheezy/updates main # wheezy-updates, previously known as 'volatile' deb http://ftp.hu.debian.org/debian/ wheezy-updates main deb-src http://ftp.hu.debian.org/debian/ wheezy-updates main
After this type:
Then perform the upgrade. It is recommended to use a two stage upgrade approach.
apt-get upgrade apt-get dist-upgrade
When it is ready reboot twice. After the first reboot I have found that all filesystems are read only due to an unknown error. After rebooting again everything was ok.
Enjoy your Debian Wheezy.
Debian Wheezy Release Notes: http://www.debian.org/releases/wheezy/amd64/release-notes/