Re: [gentoo-server] Disabling net.eth0

[Aaron Walker]

On Sat, 2004-05-01 at 19:59, Collin Starkweather wrote:
> This is a question about my laptop, but I figure the folks on the server
> list might be more in tune with the issues so please bear with me.
>
> I recently ran into a problem where my ethernet controller on my laptop
> died a grisly death.  It kinda works for a few minutes after booting,
> then triggers a kernel panic.  For those who want more detail, see
> today's post at
>
>   http://www.collinstarkweather.com
>
> Problem is, it's built into the motherboard.  If a kernel panic isn't
> triggered immediately on boot, I
>
>   rmmod 3c59x
>
> which keeps the problem from cropping up and use my 802.11g card for
> networking.  This has led me to some interesting questions I haven't
> been able to figure out.
>
> 1)  I could recompile my kernel without 3c59x, but is there a way
> instead to simply keep the module from being loaded on boot?
>
> 2)  My wireless card is set up as an interface named ath0.  But no
> matter what I do, net.eth0 wants to come up on boot.  `rc-update show |
> grep eth0` gives
>
>             net.eth0 |
>
> Doesn't look like I can disable it with rc-update since it's not
> explicitly associated with a runlevel to begin with.  Other than
> renaming /etc/init.d/net.eth0, which seems an awful kludge, is there a
> way to keep it from coming up on boot?
>
> Thanks,
>
> -Collin

Is hotplug installed (and started in default runlevel)?  If you are not
explicitly telling it to load the module (via
/etc/modules.autoload.d/kernel-2.x) then its probably being loaded by
hotplug.  I am sure there is a way to tell hotplug to not load certain
modules, but I'm not sure how to do this.  Check out the hotplug docs. 
If your laptop is like mine, the NIC module is the only module hotplug
loads.  If that's the case, you can disable hotplug altogether.

HTH
-- 
Aaron Walker <ka0ttic@××××××.com>
http://ka0ttic.dyndns.org/