net.eth0 absent.

Archlungs · n00b Joined: 19 Feb 2007 Posts: 13

Hey all,

I hope you can take the time to try and figure what it is that's confusing the kernel I have; 2.6.20.
Upon starting up, I'm notified that net.eth0 can not be detected - it suggests enabling the modules necessary, which in this case is forcedeth (ethernet works fine when using forcedeth through the live CD). I also tried downgrading kernels, I went to 2.6.27-r8 although no luck there. |grep'd it, and everything seems to be in check. I'm still very new to gentoo and not used to this type of interactivity with code, so please; any advice or suggestions will be much appreciated.

Thanks!

fangorn · Veteran Joined: 31 Jul 2004 Posts: 1886

If you built forcedeth as a module ([M] in make menuconfig), you have to load it at startup. Check your /etc/modules-autoload.d/kernel-2.6 if it contains forcedeth and do "modules-update" as root.

If you built forcedeth into the kernel, there is still the possibility that there is another network device getting assigned to net.eth0 (had this problem when enabling ethernet over ieee1394). In this case either identify and remove the blocking driver or change your settings to net.eth1. You can also reassign the network devices using udev to something more speaking like dsl or lan, ... and use this names in /etc/conf.d/net.
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Archlungs · n00b Joined: 19 Feb 2007 Posts: 13

Cheers Fangorn,

I have forcedeth built in - or must have - as it wasn't able to load forcedeth as a module on startup.
Is there some kind of walkthrough on how to untangle devices like that? I wouldn't really know what to do.

fangorn · Veteran Joined: 31 Jul 2004 Posts: 1886

For a starting point there is a Howto "writing udev rules" at gentoo-wiki.com.
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wynn · Advocate Joined: 01 Apr 2005 Posts: 2421 Location: UK

You can have a look at what you've got by

Archlungs · n00b Joined: 19 Feb 2007 Posts: 13

Hey!

Uh, sorry about delay, internet activity severely restricted by a casually vacant eth0. ifconfig -a showed a blankslate. Only lo, and even then lo was packing zeros. udevinfo can't find anything for eth0 - and that's the sum of my ethxs.

Alright, but reading up on udev; it'd seem that's where the problem lies. Quite difficult to understand, though - this seems advanced.

wynn · Advocate Joined: 01 Apr 2005 Posts: 2421 Location: UK

If "ifconfig -a" shows only lo then it looks as though the driver for eth0 hasn't been loaded.

If lo isn't set up as "inet addr:127.0.0.1 Mask:255.0.0.0" then that shows a problem in the init scripts, specifically /etc/init.d/net.lo (net.eth0 is symlinked to net.lo, isn't it?). There should be some messages appearing during boot or in /var/log/messages.
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adrislayer · n00b Joined: 16 Aug 2005 Posts: 48

hi, I have a similar problem...

I have 3 eth interfaces, one with a broadcom 440 fast-ethernet, one with firewire and one with ipw2200.

I have installed ipw2200 as a module and it loads properly the firmware, i've checked in the log messages.

when i do the ifconfig -a I get the following:

Archlungs · n00b Joined: 19 Feb 2007 Posts: 13

Hey,

Thanks Wynn; I've found there's no problem with net.lo - and, yeah; net.eth0 is symlinked. The messages appearing during boot and in /var/log/messages (which are relevant) are just that there is no net.eth0 interface. I'll copy the error message:

Black Zer0 · Posted: Fri Mar 16, 2007 8:46 pm Post subject: Re: net.eth0 absent.

wynn · Advocate Joined: 01 Apr 2005 Posts: 2421 Location: UK

wynn · Advocate Joined: 01 Apr 2005 Posts: 2421 Location: UK

Black Zer0 · Posted: Sat Mar 17, 2007 8:59 pm Post subject:

Does this mean I have to add sysfs to fstab?
What exactly do I put there if so.

And after mounting it sys/ was full of the right stuff

wynn · Advocate Joined: 01 Apr 2005 Posts: 2421 Location: UK

Black Zer0 · Posted: Fri Mar 23, 2007 12:00 am Post subject:

It worked for a couple of days but it was useless because xorg. It was because temp and proc werent mounted as well as 8139too, the new problem is that 8139too now fails to load and simply says "Failed to load 8139too" if you know why this would've happened, I was reconfiguring the kernel (enabling vm_86 support) but I don't remember disabling anything in menuconfig.

wynn · Advocate Joined: 01 Apr 2005 Posts: 2421 Location: UK

You can check your config to see if it is enabled: you can do this for the running kernel by

Black Zer0 · Posted: Fri Mar 23, 2007 11:58 am Post subject:

It is enabled as a module at least I think it is because it says CONFIG_8139TOO:m

but for some reason it can't be loaded anymore (I could load it a couple of days ago :roll:

)

wynn · Advocate Joined: 01 Apr 2005 Posts: 2421 Location: UK

You can check to see if it is there with

Black Zer0 · Posted: Fri Mar 23, 2007 8:58 pm Post subject:

It is there,I did those commands and it showed up, so why isn't it working?

wynn · Advocate Joined: 01 Apr 2005 Posts: 2421 Location: UK

When you run

Black Zer0 · Posted: Fri Mar 23, 2007 10:21 pm Post subject:

ismod shows and then it says "fail to insert invalid format"
I also noticed that NO module can autoload if that helps.

wynn · Advocate Joined: 01 Apr 2005 Posts: 2421 Location: UK

Black Zer0 · Posted: Sat Mar 24, 2007 2:03 pm Post subject:

Which Version IS the latest one, I've installed gentoo about 6 times now and havent got any higher than 2.6.19-r7, but someone said they had 2.6.21.
If 21 doesn't exist yet then they had 20.

So I'm supposed to run make && make modules_install right? but where do the newly compiled images go. I remember there being a command to make them show up in /boot or something.

wynn · Advocate Joined: 01 Apr 2005 Posts: 2421 Location: UK

Black Zer0 · Posted: Sat Mar 24, 2007 4:22 pm Post subject: