How to Install KDE SC 4.9 on Ubuntu 12.04 LTS

The following tutorial will teach Ubuntu and Kubuntu users how to install the newly released KDE SC 4.9 on the Ubuntu/Kubuntu 12.04 LTS (Precise Pangolin) operating system.

After another six months of hard work, the famous KDE Software Compilation (SC) suite reached version 4.9 on August 1st, 2012.

Composed of the KDE Plasma Workspace, the KDE Applications and the KDE Development Platform, KDE SC 4.9 comes loaded with many interesting and new features, updated applications, new technologies and functionality, as well as breath-taking effects.

The following tutorial was created especially for those of you who want to install KDE SC 4.9 on their Ubuntu 12.04 LTS (Precise Pangolin) machines. In other words, with this guide, we will teach you, step by step, how to install KDE SC 4.9 on top of your existing Ubuntu 12.04 LTS (Precise Pangolin) installation.

Step 1 - Add KDE SC 4.9 repositories

Hit the CTRL+ALT+T key combination on your keyboard and paste the following command in the terminal window:

sudo add-apt-repository ppa:kubuntu-ppa/backports

Enter your password when asked and hit the Enter key.


Then paste the following command in the terminal window:

sudo apt-get update

Close the terminal window when the operation is done! Proceed to the next step.

Step 2 - Install KDE SC 4.9

All you need to do now is to click the link below...

Click here to Install KDE SC 4.9
Wait a few seconds, and the Ubuntu Software Center application will appear. Click the "Install" button on the new window...


To install the KDE SC 4.9.0 packages enter your password when asked...


Wait for the KDE SC 4.9 packages to be downloaded and installed...


...when the installation is over close Ubuntu Software Center and reboot your computer.

When you get back, at the login screen, select your username, click the Sessions button and select the KDE Plasma Workspace entry.


Type your password and voilà... KDE 4.9 fun on your Ubuntu 12.04 LTS desktop!


Uninstalling KDE SC 4.9 (optional)

If you want to remove KDE SC 4.9 from your system, or downgrade to the previously installed version, all you have to do is to hit the CTRL+ALT+T key combination on your keyboard and paste the following commands in the terminal window (one by one, hitting Enter after each one):

sudo apt-get install -y ppa-purge
sudo ppa-purge ppa:kubuntu-ppa/backports
sudo apt-get -f -y autoremove

If you encounter any issues with the tutorial, do not hesitate to use our commenting system below.

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Via: How to Install KDE SC 4.9 on Ubuntu 12.04 LTS