Set Gnome as Default In Natty Narwhal

[powerofpi]

This may sound like a silly question, but I can't seem to find the answer. How can I go about making Gnome the default desktop session in Natty?

[Krytarik]

You can change the system's default session option by "System -> Administration -> Login Screen" or the corresponding path in Unity. The settings will eventually be stored in "/etc/gdm/custom.conf", like this:

[daemon]
TimedLoginEnable=true
AutomaticLoginEnable=false
TimedLogin=krytarik
AutomaticLogin=krytarik
TimedLoginDelay=10
DefaultSession=gnomeGreetings.

Note: That name refers to the name of the respective *.desktop file in "/usr/share/xsessions". So, you have to check that if you want to set it manually.