lo vs eth0

anonazyet · n00b Joined: 16 Apr 2002 Posts: 38

Hey!
I just finished installing Gentoo 1.1a. Graduated(?) from Mandrake 8.1. Tghought I could take on the geek stuff :oops:

Well, I'm stuck with no LAN! Mandrake used to start eth0 at boot, I only had to configure my PC as hostname.abcd.in and also enabled DHCP during installation. I'm connected to my college server with 60 other systems. Use Dlink card.

I followed all the steps mentioned in the Installation guide.

1. did the rc-update add net.eth0 default
2. Enabled eth0=dhcp in /etc/conf.d/net
3. /etc/hostname has myhostname.server.com

Lan did work during the installation with ifconfig -a giving UP RUNNING for both lo and eth0. I have no idea how to get eth0 running again. What is lo?Can anyone help me out here?
thanx,
Abhi

gschneider · Posted: Tue Apr 16, 2002 9:05 am Post subject:

do you have the kernel module for your card loaded?
or do you have it compiled in the kernel?
does ifconfig give an error message when you run "ifconfig eth0 up"?
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anonazyet · n00b Joined: 16 Apr 2002 Posts: 38

Hmm..

Tried the following:

1. added eth0 to /etc/modules.autoload , Shows eth0 [ok] while booting
2. ifconfig -a still shows only lo
3. ifconfig eth0 up gives "eth0: unknown interface:No such device"

Have to admit about the kernel module, well I dunno! :lol:

Always used the .config file from
earlier install. Tried to menuconfig on my own but dunno where to enable "eth0"
I did lookup on my friends mandrake 8.2 with netconf, revealed that

Net device =eth0
kernel module = 8139too

I guess I forgot to compile the module [mandrake's .config gave a kernel panic]?
I have the drivers should I compile and put the .o file in /lib/modules? or should I directly
copy the module? Where do I enable it during menuconfig?

Can I find out the module being used from the boot cd [eth0 did work during install]?

thanx again and pleaz pardon my ignorance ;-)

,
Abhi.

gschneider · Posted: Tue Apr 16, 2002 11:55 am Post subject:

try first this:
modprobe 8139too
ifconfig eth0 up

if that works, remove the eth0 entry from /etc/modules.autoload and replace it with 8139too.
then it should work....
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anonazyet · n00b Joined: 16 Apr 2002 Posts: 38

Hi!
Thanx 4 ur help. I recompiled the kernel, this time getting deeper into the sub menus. Found out about the modules for my ethernet card

Network device Support -> Ethernet (10 or 100 MBit) Enabled (* not M) both Realtek rtl8139

reboot
ifconfig -a

shows both eth0 and lo but eth0 isn't up and running!? tried executing

modprobe 8139too
can't locate module 8139too

It works on Mandrake though. Anyway after I do

dhcpcd eth0 -h msit157.jntu.ac.in
ifconfig -a

It works! I get both lo and eth0 as UP RUNNING!!!
I just have to figure out a way to make it run on it's own
so now that I have compiled my kernel with support for my eth card, what should I add in

/etc/modules.autoload

thanx again, I'll keep tinkering around!!
Abhi

Guest · Posted: Thu Apr 18, 2002 8:04 am Post subject:

You can modify the file /etc/conf.d/net there you can define that eth0 gets his tcp/ip information through dhcp

Good Luck