New Gentoo Install.. "Interface eth0 does not exist"

shgadwa · Guru Joined: 12 Mar 2009 Posts: 327

I am unable to get both wired and wireless cards to work. The network cards do not show up in ifconfig. If I type in /etc/init.d/eth0 start, it says "interface eth0 does not exist. Ensure that you have the correct kernel module for your hardware."

I would assume that my devices are not setup in my kernel. However, I do have it enabled. Should I use modules instead??

For the record, I'm using Atheros network cards.

Thanks!

~Shawn

The Doctor · Moderator Joined: 27 Jul 2010 Posts: 2678

I think you have a typo in that command:
/etc/init.d/eth0 should be /etc/init.d/net.eth0
and did you remember to create the symbolic link as per the handbook?

As for the module vs not for networking, it should not make any functional difference unless the card requires firmware (as I understand it).
_________________
First things first, but not necessarily in that order.

Apologies if I take a while to respond. I'm currently working on the dematerialization circuit for my blue box.

shgadwa · Guru Joined: 12 Mar 2009 Posts: 327

I made a typo, but just in this thread, unfortunately. My knowledge of gentoo Linux isn't that bad that I'd not call it net.eth0.

Anyway, I am 90% certain this is not a kernel issue. I do have it enabled in the kernel, but I've tried modules to no effect. Also I used genkernel to configure the kernel and that didn't make a difference. I don't like bloated kernels so I will reconfigure later.

The Doctor · Moderator Joined: 27 Jul 2010 Posts: 2678

Well, make sure that net.eth0 actually exists and if it does I would check to see if you need any firmware for it. It might also be illuminating to add net.eth0 to the boot run level and see how it fails.

It may also be worth rebuilding your kernel with the driver as a module, but that seems like more of a long shot. If the symlinks exist, my money would be on firmware.
_________________
First things first, but not necessarily in that order.

Apologies if I take a while to respond. I'm currently working on the dematerialization circuit for my blue box.

BillWho · Veteran Joined: 03 Mar 2012 Posts: 1600 Location: US

shgadwa,

Enter the output of lspci -n here http://kmuto.jp/debian/hcl/

That should identify your network card and help with finding the right driver.

sao98021 · Posted: Sat Apr 07, 2012 6:42 am Post subject:

dont forget to add dhcpcd, if you do infact use dhcp.

shgadwa · Guru Joined: 12 Mar 2009 Posts: 327

Thank you guys for your help.

I went ahead and enabled everything from Atheros for my NICs in the kernel, as a module. Upon reboot, it worked perfectly. DHCPCD found an IP address really fast, and everything works fine.

Thank you for your help.