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47 lines
2.8 KiB
Markdown
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Linux FAQs with Answers--How to install non-free packages on Debian
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> **Question**: I need to install some proprietary device driver on Debian, which is part of a non-free package. However, I cannot find and install the package in my Debian box. How can I install non-free packages on Debian?
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The Debian project is distributed as a collection of packages, [48,000][1] of them, as of Debian Wheezy. These packages are categorized into three areas: main, contrib and non-free, mainly based on licensing requirements, e.g., [Debian Free Software Guidelines][2] (DFSG).
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The main area contains free software that complies with DFSG. The contrib area contains free software that complies with DFSG, but relies on non-free software for compilation or execution. Finally, the non-free area contains non-free packages that are not compliant with DFSG but redistributable. The main repository is considered a part of Debian, but neither contrib or non-free repository is. The latter two are maintained and provided only as a convenience to users.
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If you want to install a non-free package maintained by Debian, you need to enable contrib and non-free repositories. To do so, open /etc/apt/sources.list with a text editor, and append "contrib non-free" to each source.
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The following is an example of /etc/apt/sources.list for Debian Wheezy.
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deb http://ftp.us.debian.org/debian/ wheezy main contrib non-free
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deb-src http://ftp.us.debian.org/debian/ wheezy main contrib non-free
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deb http://security.debian.org/ wheezy/updates main contrib non-free
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deb-src http://security.debian.org/ wheezy/updates main contrib non-free
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# wheezy-updates, previously known as 'volatile'
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deb http://ftp.us.debian.org/debian/ wheezy-updates main contrib non-free
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deb-src http://ftp.us.debian.org/debian/ wheezy-updates main contrib non-free
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After modifying sources of packages, run the following command to download package index files for contrib and non-free repositories.
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$ sudo apt-get update
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If you are using aptitude, run the following instead.
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$ sudo aptitude update
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Now you are ready to search and install any non-free package on Debian.
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--------------------------------------------------------------------------------
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via: http://ask.xmodulo.com/install-nonfree-packages-debian.html
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出
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[1]:https://packages.debian.org/stable/allpackages?format=txt.gz
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[2]:https://www.debian.org/social_contract.html#guidelines
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