No eth0 in /dev

[mrpringle]

Hey,
My gentoo system was running fine. Just today I put a new motherboard in my PC, but same everything else, including hard drive.

Gentoo still works okay, but it gives me an error saying that eth0 was not found. It isn't listed under /dev, but I'm not sure why.

Here is the printout of my dmesg.

Just in case it is relevant the new motherboard is a Gigabyte P35-DS4, and the old one was a Gigabyte 965P-S3.

Any help would be appreciated.

Thanks

[tylerwylie]

You'll probably have to recompile your kernel for the correct drivers. Although it is loading a module I doubt that's the one you need.

[mrpringle]

[mark_alec]

Network interfaces do not appear in /dev. Post the output of 'ifconfig -a'
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www.gentoo.org.au || #gentoo-au

[mrpringle]

[Rikai]

Since most network devices are persistent, udev doesn't get rid of them by default.

# rm /etc/udev/rules.d/70-persistent-net.rules

And udev will forget about the old network devices and eth1 should become eth0.


You could also

# ln -s /etc/init.d/net.eth0 /etc/init.d/net.eth1
# rc-update del net.eth0
# rc-update add net.eth1 boot

to use eth1 on boot instead of eth0.

[mrpringle]

[mrpringle]

Ok, I deleted the 70-persistent-net.rules and now when I start gentoo dhcpcd times out and the ethernet link is always down for some reason when everything is connected.

* Starting eth0
* Bringing up eth0
* dhcp
* Running dhcpcd ...
Error, eth0: timed out [ ok ] * eth0 received address 169.254.209.71/16

[Knute]

You didn't!

Ok, the simple way to fix it, other than just editing it rather and deleting it , is to simply stop and then restart udev.
_________________
Knute
----------
The human race has one really effective weapon, and that is laughter.
-- Mark Twain

If you want proof of that, take a look at windows sometime.

[mrpringle]

[Knute]

From what I read, if you delete the 70-persistent-net.rules file and then stop and restart udev, it should rebuild the rule.

I did a quick google search using "udev rules regenerate".
I can post mine if you want, but since the rule contains MAC address and such, it probably won't help u too much.

I had this issue come up on me and all I had to do was to take out the lines for eth0 and such, and then change the eth2 (I think) back to eth0 and restarted the network services and I was back in business.
_________________
Knute
----------
The human race has one really effective weapon, and that is laughter.
-- Mark Twain

If you want proof of that, take a look at windows sometime.

[mrpringle]

[mrpringle]

I'm bumping this post because I have no idea what to try and I really need my network up and running or else my ebuilds will get too far out of date. Another problem is I have a samba and ssh server running off the PC, which I obviously can't use without network connectivity.

Why is the link down when a cable is plugged in .The network adapter is detected properly under gentoo, but the link light never comes on. It does work fine when I boot into windows though.

One thing I find really strange is the fastethernet worked when I first switched motherboards and the new network adapter was listed under eth1, but after deleting and rebuild the udev net rules I can no longer get the eth1 interface to come online?

Actually, just another thought my mobo has an IEEE1394 port as well. Would it be possible that eth0 is actually that port instead of my on-board gigabit ethernet?

Any assistance or suggestions would be much appreciated.

[mrpringle]

This sounds exactly like my problem. I will try this fix when I get home

http://gentoo-wiki.com/HARDWARE_RTL8168

[trossachs]

My prob is this:

[xbmodder]

That's -bad-
Did you do an etc-update?
Did you muck around with files outside of /etc?
_________________
http://xbmodder.us/

[trossachs]

Right now I'm stuck with this:

[chanakam2000]

[Monkeh]

[trossachs]

Sorted with 2.6.23. cheers!