topic Re: bring up eth0 in Operating System - Linux

bring up eth0

Vanja — Thu, 19 Jul 2007 19:05:55 GMT

Hi all,

Relatively new to linux and playing around with the kernel.

I've loaded a mini kernel using INSERT-1.3.6.
Trying to troubleshoot a network connection.

Now after loading the kernel modules tg3,bnx2,and e1000 I still can't get eth0 to come up. These are the modules that I usually use with the cards that I have loaded in these types of systems. When I run ifconfig on eth0 I get "SIOCSIFADDR: No such device" and a few other messages. I've attached a print screen of the console output to this thread.

Any help in getting eth0 up will be appreciated. I'm assuming I'm missing some step but not sure what. Points will be dealt accordingly.

Thanks!

Re: bring up eth0

Hemmetter — Fri, 20 Jul 2007 01:38:14 GMT

Hi Vania,

after loading the drivers with:
$ modprobe bnx2
and
$ modprobe e1000

you should find some eth's im dmesg output.

can you post:
$ dmesg | grep -i eth
and also
$ ifconfig -a

rgds
HGH

Re: bring up eth0

Ivan Ferreira — Fri, 20 Jul 2007 08:45:38 GMT

After running modprobe, you already should see the eth0 device unconfigured if the device is detected by the module.

Ensure that after loading the module you do have the eth0 device in the output of ifconfig -a.

Re: bring up eth0

Vanja — Fri, 20 Jul 2007 10:28:42 GMT

Thanks for the input.

After loading the drivers I don't see eth0, eth1, eth2, or eth3 in output of ifconfig -a, as I expect. The only thing that I see in ifconfig -a is the loopback interface. I will be able to do some more troubleshooting on Monday. If you guys have any other tips or clues I appreciate it.

Also note from the attachment that lsmod doesn't list any devices (eth0 - eth3) using any of the 3 nic drivers?

Thanks!

Re: bring up eth0

sshakthi — Mon, 23 Jul 2007 02:49:19 GMT

run kudzu,

and use system-config-network(redhat/fedora) or netconfig to check the card is installed or not.

Re: bring up eth0

Yogeeraj_1 — Mon, 23 Jul 2007 05:26:49 GMT

hi,

What do you see in:
/etc/sysconfig/networking/devices

e.g.
[yd@myserver devices]$ ll
total 48
-rw-r--r-- 3 root root 192 Jun 26 15:20 ifcfg-eth0
-rw-r--r-- 3 root root 182 Jun 26 15:20 ifcfg-eth1
-rw-r--r-- 3 root root 204 Jun 26 15:20 ifcfg-eth2
-rw-r--r-- 3 root root 207 Jun 26 15:20 ifcfg-eth3
-rw-r--r-- 3 root root 285 Jun 26 15:20 ifcfg-eth3:1
-rw-r--r-- 3 root root 70 Jun 26 15:20 route-eth3
[yd@myserver devices]$

revert
kind regards
yogeeraj

Re: bring up eth0

Geert Van Pamel — Thu, 09 Aug 2007 17:38:43 GMT

You could try the following commands:

lspci

modprobe -r eth0

modprobe -v eth0

cat /etc/modules.conf

cat /etc/modprobe.conf

mii-tool eth0

ethtool eth0

ifconfig eth0 ...

ifup eth0

dmesg |grep eth0

grep eth0 /var/log/messages

cd /etc/sysconfig/network-scripts

cat ifcfg-eth0

More inspiration in the extremely interesting book from HP:

Linux Troubleshooting for System Administrators and Power Users
James Kierkland, et al.
2006, HP Professional Books
ISBN 0-13-185515-8

Re: bring up eth0

Sac_3 — Fri, 10 Aug 2007 12:43:48 GMT

Hi Geert Van Pamel ,
Looking for "Linux Troubleshooting for System Administrators and Power Users" book. If you have this book in pdf format, can u pls send it.If your Ok will giv u my email id.

Regards,
SaC

Re: bring up eth0

Geert Van Pamel — Sat, 18 Aug 2007 14:16:36 GMT

I once had a problem on Fedora Core 6 with a not automatically unrecognized ethernet card.

ifup eth0
3c59x device eth0 does not seem to be present, delaying initialization.

I solved the problem with the following little startup script:

vi /etc/init.d/localnet
#!/bin/bash
echo $0 $* # Local network startup

modprobe -r eth0
modprobe -v eth0

Then I register this startup script

grep default /etc/inittab
...
id:5:initdefault:

cd /etc/rc5.d
ln -s ../init.d/localnet S10localnet

Re: bring up eth0

Geert Van Pamel — Sun, 19 Aug 2007 05:38:56 GMT

For Sac: you can buy it for 34$

http://www.amazon.com/exec/obidos/ISBN=0131855158