replaced NIC, now no network

Gabriel M Dragffy dragffy at
Thu Sep 14 05:08:51 UTC 2006

On Wed, 2006-09-13 at 21:33 -0400, Felix Miata wrote:
> I disabled the onboard eth0 NIC and installed a PCI NIC. On reboot,
> Etch, Xandros and Knoppix all figured out how to use the new device
> instead of the old one. In Kubuntu I now have no network.
> /etc/network/interfaces remains untouched since before the swap, making
> no direct reference to the hardware device.
> doesn't
> address much of anything. In system settings -> network settings there
> is a disabled eth1 and no eth0, and no apparent way to remove the bogus
> device or add and configure the new eth0. How do I solve this in 6.06?
> -- 
> "Wisdom is supreme; therefore get wisdom. Though it cost all you
> have, get understanding. Esteem her, and she will exalt you;
> embrace her, and she will honor you."		Proverbs 4:7-8 NIV
>  Team OS/2 ** Reg. Linux User #211409
> Felix Miata  ***

Hi I'm not sure of the exact solution for your problem, however try the
following. In a terminal type:

ifconfig -a

this will list ALL of your network interfaces and you should see your
new NIC listed. Remember the number of this NIC eth0? eth1?

more /etc/network/interfaces

Have a look to see if it is referred to. It's possible that the number
has changed from eth0 to eth1 and your interfaces file only has
configuration data for eth0. If that's the case, edit the file:

gksudo gedit /etc/network/interfaces

and change all references to the defunct eth0 to eth1, save and quite,

sudo ifdown -a && sudo ifup -a

Hope that helps you, but I could be barking up the wrong tree!

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