• HowTo: Upgrade Debian 5 Lenny zu Debian 6 Squeeze - Linux
  cat /etc/debian_version
  By jendrek in Linux with debian lenny squezze upgrade
• S4U: vserver Plus, Dist-Upgrade: Debian Etch -> Lenny - Server Support Forum
  By jendrek in Linux with debian etch lenny server4you update
• Upgrading debian 4/plesk 8.4 to debian 5/9.5 « notboring dev blog
  By jendrek in Linux with debian etch lenny plesk

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