Looking for ethernet driver

Today, when I logged into my TX1 with a console, I have been proposed to upgrade to a newer ubuntu 16.04. I have accepted, the download and install happened fine, but after reboot I face many problems.

The worst is that I have no more network :

sudo ls hw -C network
*-network:0 DISABLED
description: Wireless interface

*-network:1 DISABLED
description: Ethernet interface

and lsmod gives:

I suppose that I am missing the right driver. Is it true ?
If yes, where can I get it ? I can copy on USB disk for installing later on my TX1.

Thanks if you can help.

The upstream 16.04 update is incompatible with NVIDIA L4T BSP + kernel. The next version of L4T will include Ubuntu 16.04 64-bit.

For the time being, please re-flash your TX1 with JetPack 2.2.1 and do not select the upstream upgrade.