2.3 Installation from repo fails

Hello,

I tried to install VE 2.3 by following this guide: http://pve.proxmox.com/wiki/Install_...Debian_Squeeze

So when I did

aptitude install proxmox-ve-2.6.3It fails when configuring pve-cluster:
Starting pve cluster filesystem : pve-cluster[main] crit: Unable to get local IP address
(warning).
invoke-rc.d: initscript pve-cluster, action "start" failed.

No clue where to start.
Any help appreciated.

Best Regards
ulus