I am new to Ubuntu, and I have just installed Ubuntu 12.04 on a computer. I am using an automatic proxy server. When I select a software package to install and input my password, the progress icon displays for a few seconds, and then it stops. I tried to install different programs, and I always had the same problem. I can browse the web with Firefox, so I know I have a network connection. I do not see any errors or anything. What should I do?

  • Did you configure Firefox to use the Proxy Server? Dec 27 '12 at 17:49
  • Did you config Firefox, or your computer to use the proxy?
    – Max Tither
    Jun 13 '13 at 2:31

Just use synaptic package manager, even though it's not as fancy as the software center. To install it type: sudo apt-get install synaptic in the terminal.


Here is a work around. Once you find a game you want to install, you can search for it in the terminal with (for example ** Super Tux):

apt-cache search Super Tux

Then you can install one of the names it displays by for example:

sudo apt-get install supertux

If you want to install a game from dotdeb.com for instance, you can open the terminal and type:

sudo dpkg -i 

Make sure to leave a Space after the -i and then drag-and-drop the deb file you downloaded onto the terminal and press Enter.

  • I am trying to install netbeans. If I try the command "apt-cache search netbeans" I get nothing back. May 1 '12 at 13:19
  • 1
    You install netbeans for the original web site. It will not be in the Software Center as its sort of "lisenced" software. netbeans.org/downloads/index.html
    – Meer Borg
    Mar 7 '13 at 5:26

I had the same problem with software. It's probably a permission thing.

On my menu the command to open uses software-center with pkexec, which command without parameters defaults to superuser. It seems to have issues.

By altermint the menu command to gksu software-center I found it worked and installed programs with no problems.

  • I am not sure what you are suggesting here. I am a real beginner :) May 1 '12 at 13:20
  • I see - I tried gksu but when I try to look at installed software it just sits there with a rotating time icon. May 1 '12 at 13:53
  • When I try to execute "gksu software-center" I get a warning on the command line that says "unable to find the server at software-center.unbunto,com" May 2 '12 at 16:33
  • I think you did typo, should be a point instead of comma (ubuntu,com > ubuntu.com). Aug 27 '13 at 4:47

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