Personal Package Archives (PPA) in Ubuntu – it catalogs APT, which are provided by third parties on Launchpad (platform-party developers Ubuntu). That’s where the freshest and the coolest programs grouped into packages Debian, which can be downloaded. It is well known that this service using Google and the community Wine.
The advantage of using PPA as compared with the simple downloading the package from the project site is that you can update it via Synaptic, just as if it was loaded from the main repositories. Also, check update themselves with GPG-signed, and we cannot doubt the authenticity of what you are installing. Rather than paint the other benefits of adding these directories as a source of applications, we just take so put the popular open Chromium browser from Google.
To be able to install and then update Chromium, go to System> Administration> Software Sources. Then open the tab Third Party Software and press Add. Finally, add the following two separate lines APT:
deb http://ppa.launchpad.net/chromium-daily/ppa/ubuntu jaunty main deb-src http://ppa.launchpad.net/chromium-daily/ppa/ubuntu jaunty main
Do not hurry to embed Jaunty Jackalope rather than Intrepid, since in this example, the older version of Ubuntu 9.04 is not supported. Now we have a line APT, and you can import the key GPG, to confirm the download. Chromium is installed and so, but we still recommend you do this to get rid of the error message, which will occur at the end of each update (and, of course, for the security, too). Start a terminal and type the following command
sudo apt-key adv - recv-keys - keyserver keyserver.ubuntu.com 4E5E17B5
At the same time with the key server Ubuntu downloaded key, identified by symbols, standing at the end. After downloading the key is imported into the list of keys Synaptic, that is, the next time you install or upgrade Chromium is confirmed that the packages came from the correct source. Now, having fully established by PPA and the imported file GPG, you can run a standard terminal and type:
sudo apt-get update sudo apt-get install chromium-browser
In this first update the cached list of packages stored in Synaptic, then install the browser Chromium. It can be found in the menu Applications> Internet. Install PPA Ubuntu should be relatively standard procedure, no matter what package you may choose. For example, to add the latest version of Wine through its Launchpad-mirrors you can use the following lines:
deb http://ppa.launchpad.net/ubuntu-wine/ppa/ubuntu jaunty main deb-src http://ppa.launchpad.net/ubuntu-wine/ppa/ubuntu jaunty main and to import the key GPG -- sudo apt-key adv - recv-keys - keyserver keyserver.ubuntu.com F9CB8DB0
To finish, run the update and installation, as done in the previous example. You can see on these pieces of code that the only real changes would address folder PPA and the value associated with key GPG.