Procedure for changing ethernet controllers

[Joe Zeff]

On 06/29/2013 08:45 PM, Digimer wrote:
> You need to get the MAC address for the new card and replace the old
> card's MAC address value in /etc/sysconfig/network-scripts/ifcfg-<dev>.
> Specifically, edit the 'HWADDR="..."' line.

Recently, my onboard NIC failed.  Before installing the new NIC, I 
edited that file and removed the HWADDR= line.  When I brought the 
system up with the new card, it found, installed and configured the card 
without any intervention and It Just Worked.  In fact there's no such 
line in the file, even now.  (I just checked.)  YMMV, of course, but I'd 
suggest trying this first, as it's the easiest way.