2. apt-get install gnome-session-fallback
3. sudo apt-get install xubuntu-desktop
4. sudo apt-get update
5. echo xfce4-session >~/.xession
or echo “gnome-session –session=gnome-classic” > .xsession
or echo “gnome-session –session=gnome-classic” > .xsession
You can use a different session types for the gnome session:
ubuntu
gnome-classic
gnome-fallback
ubuntu-2d