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I added some custom repositories sometimes ago.

How can I determine, which software I have installed is from them?

I want to delete unused repos.

2 Answers 2

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This thread in ubuntuforums solves the problem with synaptic: http://ubuntuforums.org/showthread.php?t=1685945

Go into synaptic

Select the "origin" tab in the lower left corner. There you can check if you have any installed packages from a specific repository.

If you find any repositories you don't need anymore you can go to "software sources" on the "administration menu" and remove them from there.

If you don't want to remove them completely, just untick the box to disable them.

I would recommend you uninstall any packages from a repository you want to remove since you won't receive any more updates for them.

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  • Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference.
    – Caesium
    Dec 18, 2011 at 11:14
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    understood, will do so in future.
    – psukys
    Dec 18, 2011 at 14:20
  • Also, synaptic is not installed by default in 11.10.
    – enzotib
    Dec 18, 2011 at 14:48
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  1. Open Ubuntu Software Center;
  2. Pressing the drop-down arrow close to the Installed button on top, you can see all active repositories;
  3. Select every listed repository, and check if some package is installed;
  4. Click the Edit --> Software Sources menu;
  5. Select the Other Software in the dialog that appears (the second one), and just remove unwanted repositories.
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  • You actually answered another question, he asked how to see which packages are installed from certain repositories - this details how to remove a repository :)
    – Caesium
    Dec 18, 2011 at 11:26
  • @Caesium: from the question I understand he likes to delete unused repos.
    – igi
    Dec 18, 2011 at 13:20

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