Is there a way to install Gnome on trusty tahr?
I imagine that the OP meant he want have the Gnome Desktop environment on his or her Ubuntu 14.04.
There are two possible answers here:
Use the version distributed by Ubuntu Gnome 14.04, which is the Gnome 3.10 version. This is recommended as it does not need to add PPAs.
sudo apt-get install ubuntu-gnome-desktop
which should work out of the box. This will install the
gnome-shelland a series of default applications for the Gnome Desktop experience. You can install just
gnome-shellif you want, but be warned that this would be an untested (and unsupported) configuration - the desktop configuration is made assuming the presence of the default apps(1).
This will install a package called
gdmtoo, which is the "Display Manager" (the program that shows you the login screen --- and that will setup the basic graphic environment), and will ask you if you want to use
lightdm(the original Display Manager of Unity). In principle you can choose one of them; in practice sometimes the Gnome Desktop misbehaves if you do not use
Use the new Gnome 3.12, with the PPA. These are experimental packages, you can break your system, and you are supposed to do that only if you are confident you can manage the breakage (as clearly stated in https://launchpad.net/~gnome3-team/+archive/gnome3-staging)
=== *WARNING* === The packages here have been deemed not ready for general use, they have known bugs and/or regressions, sometimes of a critical nature. Mostly things should run smoothly but be prepared to use ppa-purge, when you encounter issues! If they break your system, you get to keep both halves.
(1) consider that this is normally not a problem. Linux application for one desktop will generally run on all the others --- I have Ubuntu Gnome with Thunar File Manager (from Xubuntu) and digiKam (from Kubuntu) photo manipulation program, and the only problem is that the "graphical appearance" could be a bit inconsistent... which I really don't care.
Open terminal by Ctrl+Alt+Tand run following command:
sudo add-apt-repository "deb http://archive.ubuntu.com/ubuntu $(lsb_release -sc) universe" sudo add-apt-repository ppa:ricotz/testing sudo add-apt-repository ppa:gnome3-team/gnome3 sudo apt-get update sudo apt-get install gnome-shell ubuntu-gnome-desktop