internet errors: eth0 does not exist

geagon · 10-25-2005, 06:58 AM

Okay guys, this marks the third day that I still can't manage to figure out what's up with my eth0. Like most posts in this thread, liveCD works, my build doesn't.

Being familiar with the debugging process assures me that I've done something wrong and that there's no magical troll inside my machine, keeping it from working.

Anyway, the weird thing about my situation, is that I first built my own kernel and couldn't get eth0 to work. So, I threw in the liveCD, chrooted and did a genkernel.

When I reboot, YAY! I get a DHCP address. I can use links, do a ping, etc. However, when I try to emerge anything, eth0 poops out and stalls. Can't figure this one out. I've followed the instructions in this post and the handbook about setting up /etc/conf.d/net. I've got my symlink in place.

Of course if emerging from the live CD, I can emerge just fine. Thanks for any help.

geagon · 10-25-2005, 07:16 AM

Additionally, my system is recognizing two eth cards. I couldn't figure this out for a while, but now I realize I have a wireless card and a "wired" card. I've only got /etc/conf.d/net setup for eth0. I don't know how to tell which card is which though.

The wired connection shows a link and the wireless card's light is off so I think I've got this set correctly. But then again, my connection is dying so I guess it's not 100%.

Again, when I try to emerge, my connection dies, but I can ping, link, etc, just fine. It might not be emerge that's acutally crashing eth0. It may be based on time after startup. My machine just loses connection in the first 30-60 seconds after boot/login.

Thanks again

geagon · 10-26-2005, 01:35 AM

I solved the problem myself... I could not figure this out for the life of me... I had a really fast-loading kernel I built myself installed and ending up "genkernel-ing" to try to fix this problem to no avail. I had a driver conflict/install problem.

I was using the wrong driver.
This helped me the most: http://forums.gentoo.org/viewtopic-p-2571765.html

I'm going to roll-back to my other kernel and add the mods I need now

mclinkor · 12-18-2005, 08:56 PM

Quote:

Originally Posted by comprookie2000

Yes it will work. My suggestion is to build them as "m" modules. I have done it before without compiling the whole kernel

Code:

cd /usr/src/linux
make menuconfig
select your card under networking eternet etc
make
make modules_install
modprobe the module
ifconfig eth0 (see if it shows up)
dhcpcd eth0

Is there a specific place you need to run menuconfig from to get this to work. I have attempted to run menuconfig from both the hdd and the livecd, but when I go under netowrking, all I see are:
networking options
amateur radio support
irDA (infrared) subsystem support
Bluetooth subsystem support
Generic IEEE 8.02.11 Networking Stack

I can expand Networking options, but see nothing remotely related to ethernet. I used gentoo-sources and manually compiled the kernel. Is that where I went wrong?

comprookie2000 · 12-18-2005, 09:16 PM

Go to device drivers -> network device support

Code:

->Ethernet (10 or 100Mbit)  --->                                                 
Ethernet (1000 Mbit)  --->                   
Ethernet (10000 Mbit)  --->