Quote Originally Posted by TomGibbons
If you add the mono yum repository to your yum.repos.d directory then mono is as easy to install on Fedora as running
Code:
yum install mono
as root at the terminal.

I know you can do it via a GUI but I don't know how. I'm sure it's very easy.
It should also be easy to install mono on Ubuntu, either by choosing "mono" in Synaptic package manager, or typing "sudo apt-get install mono". I'm surprised that your version of Ubuntu doesn't included mono by default; I think most recent versions do.