[solved] ethernet stopped working

[graphicsMan]

Hi all -

I've been having tons of troubles with this install that I've never had before (I've installed gentoo about 10 times before).

This round I couldn't get network working. Actually, I couldn't get network working with the LiveCD, but then when I used the LiveCD and chrooted, somehow I was able to start my network. Don't ask my how. I tried the same-ol stuff, and it just worked.

I managed to update my system via emerge -uD world, I had some great networking action happening

I built and installed the kernel, which boots happily.

Now I can't for the life of me get internet working again. My configuration is a bit hefty - 2 Gbit ethernet ports and 1 fast ethernet port. The 2 Gbit ports are bcm5780, which use the tg3 drivers. The 1 ethernet port is the Intel e100.

My first issues seemed to be that I had ipv6 compiled into my kernel. I went ahead and removed that. Also, I disabled the Gbit ehternet ports in the BIOS to dumb this down a bit.

so now, eth0 corresponds to the e100.

I get no errors when I do
/etc/init.d/net.eth0 start

nor do I see anything in /var/log/messages.

I cannot get the ethernet working via the LiveCD, and it'd tricky for me to chroot into my environment (ie. the same way I got it working the first time), because I have software RAID set up on my / partition, and I'm not sure how to construct the LiveCD view of the RAID (I'm a RAID newbie).

Anybody have any tips? What should I try? What should I look at? Strange that /var/log/messages doesn't say anything.

Thanks,
Brian

[edit] All that to find out I was plugged into the wrong subnet...

[Abraxas]

Check to see if the entries in /etc/resolv.conf are correct. This has bit me a few times.