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I've been peeking into the ubuntu respository and I see four folders, multiverse, universe, restricted and main. What do they represent?

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1 Answer 1

up vote 18 down vote accepted

From the Ubuntu documentation:

The repository components are:

  • Main - Officially supported software.

  • Restricted - Supported software that is not available under a completely free license.

  • Universe - Community maintained software, i.e. not officially supported software.

  • Multiverse - Software that is not free.

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Additonally: packages in Main and Restricted (almost always) have their translations delivered in ubuntu language packs, whereas packages in Universe and Multiverse deliver their own translations –  kyleN Aug 23 '11 at 17:26

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