Can't start NetworkManager

CainFoool · #1 28th February 2011, 04:13 PM

Recently I have noticed (last night actually) that my internet was not starting.
My computer running Fedora 14 is connected via ethernet cable (eth0) however it does not show in ifconfig if I type it in the terminal.

Typing

Code:

service Networkmanager start

Only bring me to a evil error,

Code:

Starting NetworkManager Deamon: [FAILED]

I need the internet as I host a server and it's on downtime right now.
Thanks 8)

EDIT
Checking ifconfig, I noticed a device was found called "lo" I stopped it by typing

Code:

ifconfig lo down

and my ethernet showed up again and says it is UP. However I still have no internet.

I also tried stopping my eth0 and starting it again, with no luck. This is getting really annoying.

Help is appreciated.

jpollard · #2 28th February 2011, 04:47 PM

lo is used for local loop back. It is needed.

What does your messages log show?

CainFoool · #3 28th February 2011, 05:00 PM

How do I get that shown?

beaker_ · #4 28th February 2011, 05:02 PM

NetworkManager activates only "system-connections" at startup and those applets won't do it. Google it. Or, if it's just an ethernet card, use network services instead.

su
yum install system-config-network
system-config-network
chkconfig network on
exit

Besure to check activate at startup and "controlled by network manager" if you expect your desktop clients to sense the internet connection. Firefox off-line for ex.,

Late Edit: Yeah I reread it. After your logs, also check what your systems sees as an ethernet device paste the output of:
lspci |grep Network
lspci |grep Ethernet

CainFoool · #5 28th February 2011, 05:16 PM

I can not access the internet so YUM is useless for me.
I've been typing this on my other computer.

---------- Post added at 05:16 PM ---------- Previous post was at 05:12 PM ----------

edit: Downloaded that network file and installed it onto my computer.
Refreshed Firefox and Chrome but nothing happened. Restart required?

beaker_ · #6 28th February 2011, 05:22 PM

So it did work but has stopped. Either a hardware or software problem.

Just so that I'm clear. You can reach runlevel 5 and login? Gnome is my guess. If I'm guessing correctly then does that applet appear next to the clock and can you connect through it?

lspci |grep Network
lspci |grep Ethernet

To show if anything is present.

If your logs don't tell you much then stand back and check the obvious; swap for a known good cable, swap ports used by another machine on that switch, toss in another nic.

CainFoool · #7 28th February 2011, 05:26 PM

edit again.
Re-read your post and tried the terminal bit
My eth0 never showed in the Device list.

Why would this happen all of a sudden?

---------- Post added at 05:26 PM ---------- Previous post was at 05:22 PM ----------

Quote:

Originally Posted by beaker_

So it did work but has stopped. Either a hardware or software problem.

Just so that I'm clear. You can reach runlevel 5 and login? Gnome is my guess. If I'm guessing correctly then does that applet appear next to the clock and can you connect through it?

lspci |grep Network
lspci |grep Ethernet

To show if anything is present.

If your logs don't tell you much then stand back and check the obvious; swap for a known good cable, swap ports used by another machine on that switch, toss in another nic.

grep network did not show anything but grep ethernet did.

00:07.0 Bridge: nVidia Corporation MCP61 Ethernet (rev a2)

beaker_ · #8 28th February 2011, 05:43 PM

Paste the output of

ifconfig -a
cat /etc/udev/rules.d/70-persistent-net.rules

You know, I'm leaning towards just disabling it in the bios (assuming integrated) and slap in a second just for sh1ts and giggles.

Late edit:

Quote:

Why would this happen all of a sudden?

I'd guess kernel update with possible driver breakage but hoping to see something in udev.

CainFoool · #9 28th February 2011, 06:05 PM

All I did was try and change the permissions of the /opt folder, but ended up deleting it because WaMP was not working. (LAMPP)
Then I tried to make myself login as ROOT on the GUI which worked well but that is when I noticed I didnt get any internet but I restored my backups and internet still didnt work.

beaker_ · #10 28th February 2011, 07:07 PM

I doubt anything installed in opt would break it but I don't know what I don't know. I hate to say it but you probably could have it reinstalled and updated by now. Which is where I'm now leaning. Maybe try a live disc to convince yourself it's not a hardware issue first.

Sorry man.

CainFoool · #11 28th February 2011, 07:50 PM

Can't re-install as I will lose my VM's which have essential information on them.

beaker_ · #12 28th February 2011, 07:54 PM

Then fire up a live cd or dvd and see if it will activate your nic. You're laughing if it does because then you are free to move your vm anyway you wish.

CainFoool · #13 28th February 2011, 08:17 PM

Would this whole conversation change if I said my Fedora booted off a 1TB External Harddrive?

beaker_ · #14 28th February 2011, 08:33 PM

Not really. It just simplifies it because you can move it anywhere. So backing up or recovering your VM should be a piece of cake. That or wait a day or so and see. Someone else might have a better idea. However I'd back those VMs up now and before going further.

Well... Kind of... I remember my external drive install going ballistic after playing musical laptops. But you didn't suggest that here. Same solution though.

CainFoool · #15 1st March 2011, 09:35 PM

Hey there as of now I am typing this on the FEDORA LIVE CD! And yes I see the network icon beside the clock.
As of now I am like WTF?

Ok, good news > Nothing wrong with cable or anything

However, now that I have internet, is there any way I can re-install
that network service?