Wednesday, January 25, 2017

package management - How do I enable the "extras" repository?


I keep reading about an extras repository for Ubuntu with new software that comes out independently of the distro release. How do I enable it?



This repository should be enabled by default and is only available for 10.10 and up.


In the Software Center (Applications -> Ubuntu Software Center) navigate to Edit -> Software Sources...


software sources


From there navigate to the Other Software tab and ensure the Independent sources are selected


independent


Press close and allow the sources to reload.


Open the APT Sources list


sudoedit /etc/apt/sources.list

Locate the lines which say


deb


Remove the hash (#) tag from those lines. If the hashes are not present then that source is already enabled. If those lines aren't there at all you will need to add them to the bottom of the file:


deb http://extras.ubuntu.com/ubuntu precise main
deb-src http://extras.ubuntu.com/ubuntu precise main

Close the editor and run


sudo apt-get update

This will download the package cache from the extra's location.


Reference:


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