= Adding Ubuntu GIS repository to your system's software sources = To use Ubuntu GIS packages, you need to add the repository to your system's software sources. Verify that your ubuntu distribution is supported by the Ubuntu GIS project: [wiki:SupportedDistributions List of the supported distributions] == Add the sources.list entries == See the "Install packages" section of this page to know the entries to add: https://launchpad.net/~ubuntugis/+archive/ubuntugis-unstable 1. Open the file ''/etc/apt/sources.list'' with a text editor and append the entries to the file. 2. Authenticate the repository. Open your terminal and enter: {{{ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 314DF160 }}} ''314DF160 is the OpenPGP key of the Ubuntu GIS repository'' If you prefer adding the entries using the GUI, see this page: https://launchpad.net/+help/soyuz/ppa-sources-list.html 3. Update your system's package list: {{{ sudo apt-get update }}}