Latest packages (1.4 release)
 
 If you want to try the latest MATE packages, you can use the MATE repository for Ubuntu. Once set up the repository, you need to edit the /etc/apt/preferences file as follow:
 
 Note: This assumes you are using packages.mate-desktop.org. If you are using a different mirror, then use that instead.
 
 Package: *
 Pin: release o=linuxmint
 Pin-Priority: 700
 
 Package: *
 Pin: origin packages.linuxmint.com
 Pin-Priority: 700
 
 Package: *
 Pin: release o=Ubuntu
 Pin-Priority: 500
 
 Package: *
 Pin: origin packages.mate-desktop.org
 Pin-Priority: 700
 
 Ubuntu Oneiric Ocelot (11.10) repository
 
 Add ONE of these repos to /etc/apt/sources.list via the following command:
 
 sudo add-apt-repository "deb http://packages.mate-desktop.org/repo/ubuntu oneiric main"
 
 sudo add-apt-repository "deb http://repo.mate-desktop.org/ubuntu oneiric main"
 
 or using a text editor of your choice add ONE of the following mirrors to /etc/apt/sources.list:
 
 deb http://packages.mate-desktop.org/repo/ubuntu oneiric main
 
 deb http://repo.mate-desktop.org/ubuntu oneirc main
 
 Ubuntu Precise Pangolin (12.04) repository
 
 Add ONE of the following repos to /etc/apt/sources.list via the following command:
 
 sudo add-apt-repository "deb http://packages.mate-desktop.org/repo/ubuntu precise main"
 
 sudo add-apt-repository "deb http://repo.mate-desktop.org/ubuntu precise main"
 
 or using a text editor of your choice add the ONE following mirrors to /etc/apt/sources.list:
 
 deb http://packages.mate-desktop.org/repo/ubuntu precise main
 
 deb http://repo.mate-desktop.org/ubuntu precise main
 
 Ubuntu Quantal Quetzal (12.10) repository
 
 Add ONE of the following repos to /etc/apt/sources.list via the following command:
 
 sudo add-apt-repository "deb http://packages.mate-desktop.org/repo/ubuntu quantal main"
 
 sudo add-apt-repository "deb http://repo.mate-desktop.org/ubuntu quantal main"
 
 or using a text editor of your choice add the ONE following mirrors to /etc/apt/sources.list:
 
 deb http://packages.mate-desktop.org/repo/ubuntu quantal main
 
 deb http://repo.mate-desktop.org/ubuntu quantal main
 
 MATE Installation (Oneiric/Precise/Quantal)
 
 Then run the following command to update your repositories and install MATE:
 
 sudo apt-get update
 sudo apt-get install mate-archive-keyring
 sudo apt-get update
 # this install base packages
 sudo apt-get install mate-core
 # this install more packages
 sudo apt-get install mate-desktop-environment
 
 
 Инфа отсюда:
 http://wiki.mate-desktop.org/download?ubuntu

