I upgraded to Ubuntu 14.04 today and I have two problems

1) When ever i do 'sudo' followed by a command the system just stalls, nothing from 'sudo ls' to 'sudo apt-get install ... ' etc works. The system just waits and waits.

2) My networking is never starting. I cannot connect to internet at all. no ethernet and no wireless. The tray icon is missing. /var/lib/NetworkManager/NetworkManager.state tells my networking is enabled. I cannot edit any system files because I cannot 'sudo'!

however, when I enter recovery mode, everything seems to be fine. 'sudo' works and networking also works!!!. Can somebody help me please.

  • 1.Could you please show the command(s) output? 2.Only one question at a time. – xangua Sep 24 '14 at 21:02
  • Does it ask for the password? – Kaz Wolfe Sep 24 '14 at 21:03
  • sudo is not asking for password. – Coniferous Sep 25 '14 at 4:54

It sounds like a hostname resolution failure.

Did you change your hostname recently?


In recovery mode, update your /etc/hosts with your new hostname so it points to, like so:  myNewHostname

Also make sure that your hostname file is correct.


Your localhost is probably not resolving properly. In recovery mode, check your /etc/hosts file and make sure lines like these exist: localhost myHostname

If it doesn't, create it.

  • I checked my /etc/hosts file and found that it has ' localhost myHostname'. So I changed the second line to ' localhost myHostname' . But it is not helping – Coniferous Sep 25 '14 at 4:56
  • @Coniferous Don't remove, add. – Kaz Wolfe Sep 25 '14 at 6:07
  • Hai I have added a third line now ' localhost myHostname myHostname' , still the problem persist. – Coniferous Sep 25 '14 at 6:48

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