To start installing and using software from a Personal Package Archive, you first need to tell your system where to find the PPA.
Important: The contents of Personal Package Archives are not checked or monitored. You install software from them at your own risk.
Step 1: Visit the PPA's overview page in QuickBuild. Look for the heading that reads Adding this PPA to your system and click the Technical details about this PPA link.
Step 2: Use the Display sources.list entries drop-down box to select the version of Ubuntu you're using.
Step 3: You'll see that the text-box directly below reads something like this:
deb http://ppa.quickbuild.pearsoncomputing.net/gwibber-daily/ppa/ubuntu jaunty main
deb-src http://ppa.quickbuild.pearsoncomputing.net/gwibber-daily/ppa/ubuntu jaunty main
Copy those lines.
Step 4: Open a terminal and type:
sudo gedit /etc/apt/sources.list
This will open a text editor containing the list of archives that your system is currently using. Scroll to the bottom of the file and paste the lines you copied in the step above.
Save the file and exit the text editor.
Step 5: Back on the PPA's overview page, look for the Signing key heading. You'll see something like:
1024R/72D340A3 (What is this?)
Copy the portion after the slash but not including the help link; e.g.
Step 6: Now you need to add that key to your system so Ubuntu can verify the packages from the PPA. In your terminal, enter:
sudo apt-key adv --keyserver keyserver.quickbuild.pearsoncomputing.net --recv-keys
72D340A3 with whatever you copied in the step 5.
This will now pull down the PPA's key and add it to your system.
Step 7: Now, as a one-off, you should tell your system to pull down the latest list of software from each archive it knows about, including the PPA you just added:
sudo apt-get update
Now you're ready to start installing software from the PPA!
Read more about Personal Package Archives in our help wiki.