eth0 failed to come up after upgrade to Breezy - HELP -

[Matt Baran]

Jay Ridgley wrote:
> Folks,
> 
> I have a serious problem... after upgrading to Breezy from Hoary I have lost my eth0 interface!     If I run ifconfig all I see is lo, eth0 does not show up. Running ifupdown does not make a difference. Rebooting does not seem to correct the problem either.
> 
> What do I need to do to fix the problem?  All was well until I did the upgrade...
> 
> I am not able to do much trouble shooting via the web since the net is unavailable from my system....
> 
> Regards,
> Jay
> 
> jridgley2 at austin.rr.com 
> 
> 
> 

When the same problem happened to me I ended up solving it by changing
/etc/iftab to:

eth0 mac 00:13:D4:C2:41:99

There was previously a bogus MAC address assigned to eth0 that was added during
the upgrade. Obviously your MAC address will be different.

-Matt