Ubuntu 5.04 problem connecting to LAN

J_K9 · 10-27-2005, 07:18 PM

Hi,

I am having trouble connecting my Ubuntu box to my home ethernet network. 'sudo ifup eth0' returns: 'Ignoring unknown interface eth0=eth0.' I then found out that my resolv.conf did not exist, and so I created one (with the appropriate DNS server addresses). I checked the Device Manager, but the ethernet adapter was both found and accepted, as can be seen here and here.

Here is my /etc/network/interfaces:

Quote:

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# This is a list of hotpluggable network interfaces.
# They will be activated automatically by the hotplug subsystem.
mapping hotplug
script grep
map eth0

What is wrong? It should be working....anyway, yeah, any help would really be appreciated. I'm trying to teach my mum Linux and not being able to connect to the network isn't a great start - haha!

Thanks in advance,

M.

J_K9 · 10-27-2005, 09:15 PM

Resolved - installed Breezy.

Thanks,

M.

FliesLikeABrick · 10-28-2005, 09:09 AM

just so you know, the problem was because you don't have a line in your /etc/network/interfaces file for eth0.

if you look in /etc/network/interfaces on breezy, you'll see that there should be a line saying something like:

iface eth0 inet dhcp

-OR-

iface eth0 inet static
address 192.168.0.1
netmask 255.255.255.0
network 192.168.0.0
broadcast 192.168.0.255
gateway 192.168.0.1

If neither of these exist, then when you try to put the interface up it doesnt know what to do with it, so it ignores it. With your pasted file, this seems to be the case

J_K9 · 10-28-2005, 06:35 PM

Ah, thank you! I must've overlooked that...hehe! I assumed that 'map eth0' did something similar, although I really didn't give it much thought. Thanks again,

M.