Adding the PPA to Ubuntu

To start installing and using software from a Personal Package Archive, you first need to tell Ubuntu where to find the PPA and how to verify the authenticity of its software.

Step 1: Copy the first line from the apt sources.list entries section of the PPA overview page.For example:

deb http://ppa.launchpad.net/awn-testing/ubuntu jaunty main

Step 2: Edit the sources.list. Add source to your sources.list

sudo gedit /etc/apt/sources.list

Step 3: Authenticate the PPA. Find the PPA’s OpenPGP key id the overview page. It looks something like this: 1024/12345678, copy it.

sudo apt-key adv –keyserver keyserver.ubuntu.com –recv-keys 12345678

Replace 12345678 with the key id

Step 4: Finally, tell Ubuntu to re-load the sources.

sudo apt-get update

You’re now ready to install software from the PPA!