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When I type the command sudo tasksel, I get a list of server packages that I can install. I only have the basic Ubuntu server installed at moment. My version is 12.04. When I select, for example, samba file server and OK it, I get an error. tasksel: aptitude failed (100).

I also get errors trying to sudo apt-get install ubuntu-desktop. (unable to locate package)

I can ping Google and other site and I do seem to have Internet connectivity. How can I fix this?

Organic Marble
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user83103
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    seems like your Main repository is disabled. can you post the output of sudo cat /etc/apt/sources.list Or run sudo apt-get update and try again – atenz Aug 13 '12 at 14:31

2 Answers2

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Tasksel throws error code 100 because there are errors with the package manager. You can try the following steps to fix it:

  1. Update the repository list:

    sudo aptitude update

  2. Enable the universe and main repository:

    sudo add-apt-repository "deb http://archive.ubuntu.com/ubuntu $(lsb_release -sc) main universe"
sudo aptitude update

  3. Try running force install:

    sudo aptitude -f install

  4. Check for error messages in the installation:

    sudo apt install ubuntu-desktop^

    If the above returned an error then you need to first fix it before installing the package using tasksel. The following links may be of assistance:

  1. Try purging and reinstalling tasksel:

    sudo apt remove --purge tasksel
sudo apt install tasksel

  2. Install the package again, using tasksel:

    sudo tasksel install ubuntu-desktop

That's it!
Good Luck!

Error404
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Run sudo apt-get update && sudo apt-get upgrade to retrieve the update information.

Try to reconfigure the Packages through 

 sudo dpkg --configure -a

And try installing through tasksel, if still then do the above update command and it will resolve .

atenz
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