LinuxQuestions.org
Help answer threads with 0 replies.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Networking
User Name
Password
Linux - Networking This forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.

Notices


Reply
  Search this Thread
Old 01-01-2005, 10:55 PM   #1
lutha
LQ Newbie
 
Registered: Jan 2005
Posts: 7

Rep: Reputation: 0
Unhappy Ethernet card "broken" after Knoppix LiveCD??


Hi all

Firstly, my apologies for a somewhat long-winded post; I assure you it reads very easily

I have Windows XP Pro on my HP laptop.
I decided to try out Linux, but I didn't want to have to change over completely for various reasons.
So I downloaded the Knoppix 3.6 (?) LiveCD ISO and burned it to a boot CDR.
Then I booted with it, and tried Knoppix a bit.

My home network has a DSL modem connected as a 'router'? ie. all the computers access the internet directly through the LAN.

However, I am totally new to Linux, so I had basically not a clue as to how to configure the LAN or internet to work under Knoppix on the laptop. I found netcardconfig, and ran it a few times, inputting values from my Windows XP setup under the LAN Network Connection. However, there were a few parameters that the program/utility asked me for which did not appear on the XP properties page, so I just input what seemed most logical to me at the time, based on the other settings of the DSL modem and the LAN connections, IP addresses... (I must admit that I am a bit fuzzy in my understanding of all those, too...)

Well, I couldn't get it to work properly, but I wasn't all that fussed, and I also didn't want to spend ages trying to solve this problem. After all, this was just a bit of experimenting.

Okay, so now I want to go back to using XP, thank you very much. The laptop boots (sans LiveCD of course), loads XP nicely. BUT it suddenly says that the network cable is unplugged. This is garbage; I haven't even touched the cable during my playing around with Knoppix. And I just tried the same cable on another computer on the desktop (XP of course), with no problem whatsoever.

In fact, when I plug the laptop into the hub, no light even goes on to indicate something is plugged in!

This all leads me to suspect that somehow Linux has messed with the network card's driver, or somehow with the card's internal memory (or am I way off-track here? Is that possible?) But surely using a LiveCD will, as promised, not affect the underlying system or hard drive??

So what I would really like to know is:
1. What has happened?
2. How can I fix it?
3. How can I prevent it from happening again?

This situation is quite problematic, as now I have no internet or LAN access on my laptop, whether using Windows or Linux (but really, at this stage Linux is not an option; as I've explained, I just don't have the time at this stage to learn a whole new (and more complex) OS, and ther're other reasons that I don't want to switch to Linux [at least just yet])

I hope someone can throw some light on this matter; I would be most appreciative!

Thank you!
Yours in code,

lutha
 
Old 01-01-2005, 11:35 PM   #2
lutha
LQ Newbie
 
Registered: Jan 2005
Posts: 7

Original Poster
Rep: Reputation: 0
Thank Goodness!!

It's solved, and very simply:

I just booted once more with the Knoppix LiveCD (but didn't mess around with netcardconfig or anything this time), and then shut down and booted without the CD, into XP as usual.

Now the light's on on the hub, and we are online!!

Well, I don't know what happened there, but I'm very, *very* happy that the issue was resolved so simply!

I am curious to know what exactly did happen, though... (??)

Cheers,

lutha

Last edited by lutha; 01-01-2005 at 11:36 PM.
 
Old 01-01-2005, 11:40 PM   #3
lutha
LQ Newbie
 
Registered: Jan 2005
Posts: 7

Original Poster
Rep: Reputation: 0
I still want to be able to connect to the internet and LAN using Knoppix, though...

Is there any specific great online resource for a Linux newcomer?

Thanks,

lutha
 
Old 01-01-2005, 11:54 PM   #4
syg00
LQ Veteran
 
Registered: Aug 2003
Location: Australia
Distribution: Lots ...
Posts: 17,175

Rep: Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629
Quote:
Originally posted by lutha
I still want to be able to connect to the internet and LAN using Knoppix, though...
Can't see why you had trouble. Is your router configured as a DHCP server ???.
This is the best option for these sort of situations - the router allocates IP addresses as machines connect.
Knoppix works fine in this environment, and you don't have to do a thing.
Quote:
Is there any specific great online resource for a Linux newcomer?
Doesn't LQ count ???.
 
Old 01-02-2005, 12:21 AM   #5
lutha
LQ Newbie
 
Registered: Jan 2005
Posts: 7

Original Poster
Rep: Reputation: 0
Hi there

Thanks for your reply

Quote:
Originally posted by syg00
Can't see why you had trouble. Is your router configured as a DHCP server ???.
I don't know. I think it might be, though for some reason we've allocated
permanent IP addresses to each of our computers on the LAN. I don't know why. ??

Quote:
This is the best option for these sort of situations - the router allocates
IP addresses as machines connect.
Knoppix works fine in this environment, and you don't have to do a thing.
Okay, but when I typed in an url in Konqueror or Mozilla, it says something like:
Code:
An error occurred while loading http://www.google.com. Unknown host google.com
Quote:
Doesn't LQ count ???.
Of course this site is a great help resource; I'm very impressed...
What I meant to say was, is there a site with easy tutorials for a newcomer to Linux.
Actually, I'm not sure what I meant to say. I haven't slept at all tonight;
I've done a through-the-nighter. Something may have got lost between brain and keyboard...

Again, thanks for your reply

Kind regards,

lutha
 
Old 01-02-2005, 01:23 AM   #6
syg00
LQ Veteran
 
Registered: Aug 2003
Location: Australia
Distribution: Lots ...
Posts: 17,175

Rep: Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629
Quote:
Originally posted by lutha
I don't know. I think it might be, though for some reason we've allocated
permanent IP addresses to each of our computers on the LAN. I don't know why. ??
Shouldn't matter - so long as you have DHCP active.
Quote:

Okay, but when I typed in an url in Konqueror or Mozilla, it says something like:
An error occurred while loading http://www.google.com. Unknown host google.com
What does dmesg have to say about your network on startup - open up a terminal and type
Code:
dmesg | less
Quote:

Of course this site is a great help resource; I'm very impressed...
What I meant to say was, is there a site with easy tutorials for a newcomer to Linux.
Must be - google is your friend ...
 
Old 01-02-2005, 05:22 AM   #7
lutha
LQ Newbie
 
Registered: Jan 2005
Posts: 7

Original Poster
Rep: Reputation: 0
dmesg says this: (right at the end)
Code:
eth0:  link up.
[drm]<...>
[drm]<...>
eth0: Tx/Rx process did not stop in 2000 usec.
eth0: remaining active for wake-on-lan
I really am quite lost with this.
What does this mean? And why are all the comments from dmesg {what is dmesg, anyway?} about eth0 scattered around amongst all the other torrent??

Regards,

lutha
 
Old 01-04-2005, 06:29 AM   #8
syg00
LQ Veteran
 
Registered: Aug 2003
Location: Australia
Distribution: Lots ...
Posts: 17,175

Rep: Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629Reputation: 2629
dmesg is your boot messages - very handy; try "man dmesg"
As for the networking, that is more black magic than science.

Sorry I can't help - I've just got network issues of my own
 
Old 01-04-2005, 08:20 AM   #9
cidrolin
Member
 
Registered: Jul 2004
Distribution: Fedora c2
Posts: 89

Rep: Reputation: 15
Quote:
Originally posted by syg00
Shouldn't matter - so long as you have DHCP active.
sorry but it *might* matter ! The PC's configured with static IP won't need the dhcp service, so they will wotk fine whether it's running or not. On the other hand, a new PC, connected to the same network, and using dhcp has a chance to get an IP that is already used statically by another machine, unless the dhcp scope was chosen to leave out the static IP's. This would result in conflicting IP's on the network, with somewhat unpredictable (but usually bad) results.

Back to your main concerns :

- first ensure that the router's dhcp server is running
- boot with knoppix
- check your network config the right way, and not with your web browser, that is, open a terminal, and type
Code:
ifconfig -a
- does eth0 have a IP addres ? If not, something is wrong with the dhcp server, probably
- if it does have an IP, check it is on the same segment (address and subnet mask) as the other machines; if not you can change it on the fly with ifconfig (see man ifconfig)
- try pinging (by IP address) the other machines, the router.

If it works but you still cannot connect with a browser, then you must check the default gateway setting (should be your router), and the access restrictions on the router...

Aware this is not an all-figured out solution, I try to bring you hope... Thinking of it, laptops sometimes have weird chipset ethernet cards, it took me some time to get my Acer travelmate to work with Fedora, because the bm440 ethercard had not its driver in the distro install...

by the way, goofing around with powerful networking commands (or unadapted drivers) may cause funny parameter values to be stored permanently in the non volatile memory of the ethercards... Guess that' what happened...
 
Old 01-04-2005, 10:34 AM   #10
lutha
LQ Newbie
 
Registered: Jan 2005
Posts: 7

Original Poster
Rep: Reputation: 0
Quote:
Originally posted by syg00
dmesg is your boot messages - very handy; try "man dmesg"
As for the networking, that is more black magic than science.
Okay, thanks for your input.
Quote:

Sorry I can't help - I've just got network issues of my own
Hope they get resolved nicely

Kind regards,

lutha
 
Old 01-04-2005, 10:45 AM   #11
lutha
LQ Newbie
 
Registered: Jan 2005
Posts: 7

Original Poster
Rep: Reputation: 0
Quote:
Originally posted by cidrolin

by the way, goofing around with powerful networking commands (or unadapted drivers) may
cause funny parameter values to be stored permanently in the non volatile memory of the
ethercards... Guess that' what happened...
cidrolin, thank you so much for this nice and juicy reply!
I guess I might have somehow put some stuff into the ethernet card's memory.

In the interim, my fantastic solution of post #2 turned out to be not that fantastic:
the LAN hub my laptop was plugged in to did not show an LED light on wneh I plugged in the laptop,
and this was very, *very* frustrating!

I eventually solved it by:
1. booting with knoppix
2. messing around with netcardconfig
3. rebooting from knoppix, into knoppix
4. messing around in general, quite briefly
5, booting into xp.

And I'm writing this now from said laptop, using xp.

I also bought Linux for Dummies today, (well, my dad bought it for me ), and it comes with RedHat 8.
So to keep myself busy in the next few days, I'm trying to dual-boot this laptop, to use both xp and RH.
I don't know if/when I'll get back to knoppix; I only tried it mainly to see how linux feels, although as a
very newcomer I can't say that I have really experienced it properly...

cidrolin, again, thank you so much for your enlightening post; it's really a great resource for me...

Kind regards,

lutha
 
Old 01-05-2005, 03:20 AM   #12
cidrolin
Member
 
Registered: Jul 2004
Distribution: Fedora c2
Posts: 89

Rep: Reputation: 15
btw, my travelmate runs XP and FC2 as dual boot really fine (after fiddling a little as I said).

Just be aware that there is an issue with installing a linux after xp for a dual boot system, because xp does not partition properly the hdd; occasionally it makes xp unavailable after Linux install. This problem is fully recoverable, but you should document *before* you start installing Linux.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
have livecd of 'Linux Gentoo' how do i get past the "livecd root #" command line? randell6564 Linux - Distributions 11 11-20-2005 01:31 PM
Unrecognized PCMCIA card - "Intel AnyPoint" wireless ethernet adamwynne Linux - Laptop and Netbook 1 07-15-2004 10:50 PM
FC2: Ethernet card continually being "inactivated" ummmmm Linux - Hardware 3 07-06-2004 02:05 PM
Debian(Knoppix? on HD) "locks" when PCMCIA card is inserted... dgr72371 Linux - Laptop and Netbook 4 01-23-2004 08:04 AM
netdev watchdog timeout on "unused" 2nd ethernet card with nmbd johnvoisey Linux - Networking 1 02-11-2003 07:03 AM

LinuxQuestions.org > Forums > Linux Forums > Linux - Networking

All times are GMT -5. The time now is 04:53 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration