Eth0 doesn link up, verify config

I instlled Coreelec on a odroidn2, but the eth interface doesnt link up.

How can I verify that it is configured as up ?

In ubuntu you have sone conf under etc /network /… and you edit a file for dhcp static ip, link up etc.

Is there a smiliar file in coreelec? Or is my odroid borked?

In CE there is no file, but you have all needed network settings under Add-ons -> CoreElec Configuration -> Network.