Re: eth0 dissappeared after install

[Joost De Cock <joost.decock@astrid.be>]

Quoting Sarah Trefethen <tresarah@ucdavis.edu>:

>
> I installed a base image (testing, kernel 2.4.25-1) on a dell Latitude
> D500 (laptop with centrino package) with no problem.  Essential hardware
> was all detected nicely and I was able to use my ethernet device to
> connect to my friendly local DHCP server and download additional packages
> and perform a full range of networky type tasks.
>
> After the first reboot, however, trying to bring up the ethernet devices
> yields this: "error when getting interface flags, no such device"
>
> Anyone have any hints for me?  I'm new to this.
>
> -Sarah

Hey Sarah,

I had (sort of) the same thing happening to me a few days ago. I've been running
debian for a while, and after I updated some stuff with apt-get, on the next
reboot, eth0 was missing.

Trying ifconfig eth0 up and all that failed, it was nowhere to be found.

In my case (and I know of one other dude who had a similar problem) it was a
problem with modules no longer being loaded by the kernel.
You should try to find out what kernel module your network card needs and load
that with modprobe. You may need to load some other missing modules to.
If you don't know what modules to use, try booting knoppix and check out the
lsmod output.
After that my eth0 was back, but my problems where far from over.
I couldn't use dhcp, and if I manually defined the IP settings, I could only
ping it's own address and the loopback address, nothing else on the network.
I finally solved it by moving the network card to another PCI slot. Since you're
 on a laptop, that's not going to be an option.
However, the guy with a similar problem that I metioned didn't need that extra
step. For him just loading the modules did the trick.

I hope this gets you going.

joost


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