Update Intel NIC firmware

# Intel Ethernet Connections Boot Utility, Preboot Images und EFI-Treiber

wget https://downloadmirror.intel.com/29137/eng/Preboot.tar.gz
 
tar xzf Preboot.tar.gz -C /tmp
 
cd /tmp/APPS/BootUtil/Linux_x64
chmod +x bootutil64e 
./bootutil64e