When I try to install via terminal using :

sudo apt-get install virt-manager

I get this message :

Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package virt-manager

I'm using Ubuntu 13.04 64bits

Main and Universe packages are allowed.

  • 2
    virt-manager is located in the main repositories. What distro and version are you using? Have you refreshed the packages list before with sudo apt-get update? – Lekensteyn Jan 25 '14 at 20:28
  • I'm using Ubuntu 13.04, main repos are also enabled. Yes, I've updated packages many times. – Nasreddine Jan 26 '14 at 16:06
  • Please add the output of apt-cache policy and the output after running sudo apt-get update. – Lekensteyn Jan 26 '14 at 22:23
  • 1
    How did you install Ubuntu? Audit the contents of the /etc/apt/sources.list file and the /etc/apt/sources.list.d/ directory. If it apt-cache policy does not fit in the post, use paste.ubuntu.com – Lekensteyn Jan 27 '14 at 20:00
  • 2
    I bought it with pre-installed version (12.04), then upgrade it to 13.04. apt-cache policy output paste.ubuntu.com/6836482 sources.list content paste.ubuntu.com/6836484 sources.list.d directory content : paste.ubuntu.com/6836490 – Nasreddine Jan 29 '14 at 7:49

You don't really need all PPAs. If you install Flash player + Chromium, you can remove the Chrome PPA. By reducing the number of external repositories, your packages list will be refreshed must faster.

Mixing multiple distro versions is a bad idea. You now have both Precise and Raring enabled in your sources.list. Since Raring is end-of-life since 27 January 2014, the Raring packages will vanish from the main repos soon. You need to replace your hosts by old-releases.ubuntu.com as described in this question.

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