1. goto http://debgen.simplylinux.ch/ 2. click on 3rd party repos 3. fill the details as per your requirement and click on send 4. now select sources under Default Debian Packages and if necessary check on yes include, if source packages are required and then click generate sources.list button to generate your links 5. add them to etc/apt/sources.list 6. open root terminal and type apt-get update