ubuntu

[linux-service.be bvba]

I am using fai debian wheezy to install ubuntu 13.10 clients.
Install goes well but after reboot some onboard nic's of realtek does not work 
anymore.
On a normal install of ubuntu 13.10 with usb, the nic work ok.
How can I solve this?Is it the base.tgz (from ubuntu 13.10) that is bad?
How do I build a correct base.tgz for ubuntu saucy?
Gd