ubuntu14.04安装mate

refs:

http://imcn.me/html/y2014/22442.html

http://www.omgubuntu.co.uk/2014/08/install-mate-desktop-ubuntu-14-04-lts

Ubuntu 14.04 用户，通过 PPA直接安装 Mate 桌面：

sudo apt-add-repository ppa:ubuntu-mate-dev/ppa
sudo apt-add-repository ppa:ubuntu-mate-dev/trusty-mate
sudo apt-get update
sudo apt-get install ubuntu-mate-core ubuntu-mate-desktop

卸载 gnome,shell

sudo apt-get remove gnome-shell  gnome

sudo apt-get  purge gnome

$sudo apt-get autoclean

$sudo apt-get autoremove