linux kernel not support ethernet

Angela Wu · 06-13-2013, 12:18 AM

I used Ubuntu 12.04. It's original support ethernet.
But after I downgrad kernel version to 2.6.32.45 .
The ethernet just doesn't work. What should I do to make
ethernet to work?Thanks

camorri · 06-13-2013, 09:49 AM

To make an ethernet card work, there needs to be a kernel module ( driver ) loaded that supports the particular ethernet card you have. This is true for any kernel. Drivers are compiled at the same time the kernel itself gets compiled.

You are running Ubuntu. Odds are you have the driver, you need to find out which one, for your card and use the modprobe command to load it.

First thing is to open a command prompt, and run the command /sbin/lspci. That command will list the devices connected to your pci bus. In the list you should see the ehternet card. It will look something like this :

Quote:

00:07.0 Bridge: nVidia Corporation MCP61 Ethernet (rev a2)

Look for the key word, 'Ethernet'. The rest will probably be different on your system due to hardware differences.

You can then google for 'linux driver for your ethernet card' Usually common cards are not hard to find. If you can not find the driver, post the output from the command, and someone here can help.

You can look at the output of the command 'lsmod' to look at the list of loaded drivers. If the correct module is there, you can try to activate the device; with the command 'ifconfig eth0 up'. That command will not work if you do not have the driver loaded.

Once you know the name of the driver, as root, or sudo, try to load the driver. The command will be 'modprobe nameofdriver'. All commands without the quotes, just what is between the quotes.

If you get no response, that is success. You should be able to see the module listed with the command /sbin/lsmod.

Once the driver is loaded, and you use the command 'ifconfig eth0 up', you can look at Network Manager to see your configuration, and modify it if necessary.

Angela Wu · 06-13-2013, 06:54 PM

How should I change the command to find my ethernet driver,
While I was in kernel 3.0.29. Is is supposed have ethernet drive exixt.
What command should I take?

Angela Wu · 06-13-2013, 07:13 PM

As following is command by /sbin/lspci -k , I found :
2:00.1 Ethernet controller: Intel Corporation Platform Controller Hub EG20T Gigabit Ethernet Controller (rev 02)

Kernel driver in use: pch_gbe
Kernel modules: pch_gbe
02:00.2 Unassigned class

Then where is the ethernet driver could I find?

jkirchner · 06-13-2013, 07:14 PM

Why did you downgrade the kernel? It is possible your ethernet was supported in a later kernel and not in the older one. Is there a reason you downgraded?

Angela Wu · 06-13-2013, 07:21 PM

Right now my kernel is 3.2.0.29 and it got pch_gbe ethernet driver.
But When I downgrade kernel to 2.6.32.45 , the ethernet driver won't support.
Can I save the pch_gbe and how can I load this etherne driver into my
kernel version 2.6.32.45?
Very Appreciated!

Angela Wu · 06-13-2013, 07:24 PM

Quote:

Originally Posted by jkirchner

Why did you downgrade the kernel? It is possible your ethernet was supported in a later kernel and not in the older one. Is there a reason you downgraded?

I need to work program in this version 2.6.32.45.Because my original program was work in kernel version 2.6.32.45.It is orginal in
the PowerPc computer.

Angela Wu · 06-13-2013, 07:56 PM

angela@angela-desktop:/$ sudo find -name pch_gbe*

./sys/bus/pci/drivers/pch_gbe

./sys/module/pch_gbe

./lib/modules/3.2.0-29-generic-pae/kernel/drivers/net/ethernet/oki-semi/pch_gbe

./lib/modules/3.2.0-29-generic-pae/kernel/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.ko

./usr/src/linux-headers-3.2.0-29/drivers/net/ethernet/oki-semi/pch_gbe

angela@angela-desktop:/$

In my kernel 3.0.29 the ethernet driver locate in the above path. When I down grade my kernel version to 2.6.32.45,

What should I do to ismod pch_gbe to all these path??

bsat · 06-14-2013, 04:32 AM

see if this helps

http://linuxsoft.cern.ch/cern/slc61/...d-pch_gbe.html

bsat · 06-14-2013, 04:34 AM

pch_gbe seems to be part of the kernel source tree only from 2.6.37

http://lxr.free-electrons.com/source...ain.c?v=2.6.37

so you will have to download the source code and compile it yourself.

Angela Wu · 06-14-2013, 04:52 AM

Quote:

Originally Posted by bsat

pch_gbe seems to be part of the kernel source tree only from 2.6.37

http://lxr.free-electrons.com/source...ain.c?v=2.6.37

so you will have to download the source code and compile it yourself.

Oh~Thanks, That helps.

druuna · 06-14-2013, 05:03 AM

Just curious: Have you tried using one of the other intel 1000Mbit drivers available in the 2.6.32 kernel?

This one for example: Intel(R) PRO/1000 PCI-Express Gigabit Ethernet support (Intel support).

Angela Wu · 06-14-2013, 10:37 AM

I believe that I will try it next week!
It help a lot~~~

Angela Wu · 06-17-2013, 08:12 PM

I had compile the ethernet e1000 & make install, insmod as following message:

sudo find -name e1000

./sys/bus/pci/drivers/e1000

./sys/module/e1000

./lib/modules/2.6.32-02063245-generic/kernel/drivers/net/e1000

./lib/modules/3.2.0-29-generic-pae/kernel/drivers/net/ethernet/intel/e1000

./usr/src/linux-headers-2.6.32-02063245/drivers/net/e1000

./usr/src/linux-headers-3.2.0-29/drivers/net/ethernet/intel/e1000

e1000 was in every correct location but still can't work is my ethernet.
I found my computer can't auto capture the mac address. What should I do
to auto capture my mac address or fine my mac address?

Thanks

druuna · 06-18-2013, 01:49 AM

Can you post the output of the following commands:

Code:

dmesg | grep -i eth

lspci -vvs $(lspci | awk '/Ethernet/ { print $1 }')

lshw -class network      # should also show mac address