I have installed Crouton on my chromebook, with the standard unity desktop(Ubuntu 12.02).
However, I wish to use the Gnome 3 desktop environment. I cannot however install gnome-shell, since it requires me to change the DE from the login screen. Since I log in from the shell of chrome os, this isn't possible.
If I have gnome-shell installed, how can I change the desktop environment from inside Ubuntu, with Unity DE?
sudo update-alternatives --config x-session-manager
?