ethernet not found

[Sha'ul]

I install 4.6-current, I get the sets from FTP, I reboot, and then it says
starting network
dc0: not found

It worked flawless on 4.x releases. It's a Pentium II system, so nothing 
close to recent hardware. I used the same CD on another system with a 
motherboard 2 years old and that installation was set up perfectly.