FC5 on 1950: eth0 now dev1804289383?

[Darren]

Thanks much!  As a test, I removed the HWADDR value from the ifcfg-* and 
they're working fine!

On Tue, 3 Apr 2007, Kilian CAVALOTTI wrote:

> Hi,
>
> On Monday 02 April 2007 04:26:20 pm Darren wrote:
>> Hello:
>>
>> I've got a weird problem on some (but not all!) of the 1950s in our
>> organization with Fedora Core 5.
>>
>> On a base install, (2.6.15-1.2054_FC5smp or after updating to
>> 2.6.16-1.2133_FC5smp) eth0 appears to be on NIC 2 instead of NIC1.
>
> It's a known issue which has been fixed in recent kernels. See
> http://lists.us.dell.com/pipermail/linux-poweredge/2006-September/027295.html
>
>> On at least one of these hosts, upgrading to 2.6.20-1.2300.fc5smp fixes
>> this. On others though, upgrading to anything of 2.6.19 or beyond
>> results in eth0 disappearing all together and dev1804289383 replacing
>> it.  No matter which of the NIC ports on the back I plug into, ethtool
>> reports no link on either eth1 or dev1804289383.
>>
>> Google searches suggest that dev1804289383 is actually a wireless device
>> of some kind, but that doesn't make sense here.
>>
>> Has anyone else seen this behavior?
>
> Two things here:
>
> - the devXXXX device name for eth* interfaces is typical of a wrong MAC
> address in /etc/sysconfig/network-scripts/ifcfg-ethX. Check that the
> HWADDR value is correct and match the one provided by ifconfig. At worse,
> you can remove the HWADDR= line and restart the network to see if it fixes
> the issue.
>
> - regarding the link detection, I also noticed the ethtool reports no link
> on eth1 (NIC2) even if the interface is up, with an IP address setup, and
> working. But it works reliably on eth0 (NIC1). It took me some time to
> understand it was not a link problem, and that I shouldn't trust ethtool
> on this. I have no further explanation, but I would suggest to try setting
> up an IP for your interface and seeing if you can ping somebody.
>
> Cheers,
> -- 
> Kilian
>
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