Ubuntu 12.04: Cinnamon Installation

There are a couple of ways to install Cinnamon Desktop Environment on Ubuntu 12.04.

1. Via Ubuntu Repository, add the Cinnamon ppa and install it:
   
   sudo add-apt-repository ppa:gwendal-lebihan-dev/cinnamon-stable
   sudo apt-get update
   sudo apt-get install cinnamon
   For nightly build:
   sudo add-apt-repository ppa:gwendal-lebihan-dev/cinnamon-nightly
   sudo apt-get update
   sudo apt-get install cinnamon
2. Via Linux Mint Repository, add the Linux Mint repository to the software sources ("/etc/apt/sources.list"):
   deb http://packages.linuxmint.com/ <latest version code name, ex: lisa> main
   and install it:
   sudo apt-get update
   sudo apt-get install linuxmint-keyring cinnamon cinnamon-session
   If you use this approach, you can install software packages available to Linux Mint as well, but it might give you problems such as duplicate applications. Because many software available to Linux Mint is KDE based, you might accidentally installed KDE desktop environment to your Ubuntu OS.