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Old 05-31-2005, 01:10 PM   #1
LQ Newbie
Registered: May 2005
Posts: 24

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Can't find eth0 after Sarge upgrade to 2.6


I've just upgraded to Sarge kernel-image-2.6-k7. Upgrade went smoothly except for networking functions -- system doesn't seem to find eth0.

If I ifconfig -a, I see:

lo Link encap:Local Loopback
inet ...
inet6 ...

sit0 Link encap:IPv6-in-IPv4

If I look in /etc/network/interfaces is see:

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp

I'm guessing that the new kernel has implemented IPv6 and that /etc/network/interfaces is showing me the network configuration under my old kernel.

But now I'm stuck. I'm not sure that I need IPv6. I can't find where it is configured. And I'd like to get the new kernel talking nicely with my LAN.

Thanks in advance for your help.

Old 05-31-2005, 01:13 PM   #2
Registered: Oct 2004
Location: France, Provence
Distribution: Debian
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Originally from Dead Parrot, in another post :

"If you want to turn off IPv6 system-wide, this can be done in /etc/modutils/aliases -- just find the following line and remove the # character from the beginning of the line:

# alias net-pf-10 off # IPv6

Hope it helps.
Old 05-31-2005, 03:25 PM   #3
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Thanks for the response.

Hmmm... I disabled IPv6 as suggested, then rebooted.


-- ifconfig -a still gives the same result
-- System still can't find eth0
-- And still can't find my LAN

So I'm still at sea.

Old 05-31-2005, 03:28 PM   #4
Registered: Apr 2004
Distribution: Slackware 11.0, Gentoo
Posts: 252

Rep: Reputation: 31
run lspci to see if your interface is listed there. And then make sure you have the correct module loaded for it.
Old 05-31-2005, 03:57 PM   #5
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Registered: May 2005
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Looks affirmative on both counts:

lspci | grep -i Ethernet returns:

Ethernet controller: Silicon Integrated Systems [SIS] SIS900 PCI Fast Ethernet (rev 82)

modprobe -v sis900 returns:


I confirmed that SIS900.ko was in /lib/modules/2.6.8-2-k7/kernel/drivers/net

So, what next?

Again, thanks for your help.



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