On Sat, 2006-10-14 at 22:45 +0100, Ted.Harding@nessie.mcc.ac.uk wrote:
In my case, there was initially only one, so that was eth0 anyway. Then I installed the second one, and this is a different model from the first (first is 3Com 3c509, second a 3c590), so this may be the hook. But what would happen if (say) they were both 3x590? It may be that it depends on the order in which they are detected on bootup which would have to do with their PCI identities, but there I'm only guessing!
I think that everything else being equal, lowest PCI bus ID wins
Actually I used to have a problem with my old Fujitsu sub notebook because depending on the link status of the ethernet socket at boot it would swap the wired and wireless interfaces.
However I think that was a special case.