Il 17/08/2014 17:54, Sergio Vignali ha scritto: > Ok I have ubuntugis unstable in may sources list but if I run sudo > apt-get install grass > no update happens, the version remain the 6.3 > > Hi Sergio, you should run sudo apt-get update and sudo apt-get upgrade and grass will upgrade to 6.4.4, along with any other update...