How to Install Mate Desktop Environment 1.4

1- Add MATE repository:

- For Ubuntu 12.04 Precise Pangolin

sudo add-apt-repository "deb http://packages.mate-desktop.org/repo/ubuntu precise main"

- For Debian wheezy

vi /etc/apt/sources.list

and add:

deb http://packages.mate-desktop.org/repo/debian wheezy main

save and close

- For LinuxMint

You need to use the repository above for Ubuntu, then edit /etc/apt/preferences using command:

vi /etc/apt/preferences

and  at the bottom of the file add these lines:

Package: *
Pin: origin packages.mate-desktop.org
Pin-Priority: 700

2- Refresh and install

sudo apt-get update
sudo apt-get install mate-archive-keyring
sudo apt-get update
sudo apt-get install mate-desktop-environment

Wait for the installation

Is done.