does anybody has any experience installing SLES 12 SP4 on a Cisco Server with Intel X520 network card over the Cisco Integrated Management Console via KVM?
I use the ISO SLE-12-SP4-Server-DVD-x86_64-GM-DVD1 and get the error message
"The network card is not configurable because the kernel module (eth0, wlan0) is not detected. Often it maybe because of a firmware issue."
"82599ES 10-Gigabit SFI/SFP+ Network Connection not konfigured."
SLES 12 SP4 - linuxrc, Kernel 4.12.14-94.41-default.

Does anybody know where I can get a driver for the Intel X520 and is it possible to install the version without network and to install the driver later, if there
exist one?

I would be very grateful to anyone who can give me some hints.