I have Ubuntu 14.04. I installed Cinnamon like this:
sudo add-apt-repository ppa:lestcape/cinnamon
sudo apt-get update && sudo apt-get install cinnamon
Also tried this.
sudo add-apt-repository ppa:lestcape/cinnamon
sudo apt-get update
sudo apt-get install cinnamon
All finished ok, but there was no result after reboot. Why?