If your network manager is not working, and says unmanaged, or Networking disabled in ubuntu 10.04 try this fix
Open the terminal from Applications menu -> Accessories -> Terminal run the following commands
service network-manager stop
rm /var/lib/NetworkManager/NetworkManager.state
service network-manager start
Then reboot your system.





My first 15 minutes of experience with any linux was a networkmanager crash. it took me several hours of trying to cope with it myself (I thought that I’m doing something wrong), yet it seems that after n-teen years of development Linux still fails at simple tasks.
Thankfully it’s not my computer I set up linux on.
Anyways, back to the topic: neither the commands worked, nor the manual operation (the file cannot be edited or deleted, despite I made my account member of all possible groups). What’s up with that? I should have typed some more magic, maybe?
Eventually I’ve solved an issue by killing the process (Knetworkmanager, like if that K was necessary?) and suspending to disk. Hopefully one of the fixes that are currently being downloaded solves the issue. I just hope for it.
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it worked. thank you.
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@mctom: the “more magic” is “sudo” before each command -
sudo service network-manager stop
… etc.
“sudo” runs the command as the root user, which is not the same (has more powers) even than making your user a member of all admin groups.
Maybe the OP is running always as root (!!!! gasp!) and didn’t think of sudo because of that.
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Thanks a lot for the information.
It works.
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Thanks a lot man it worked
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any more ideas ? , its not working at all , with root also,
thanks in advance ,
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