The original runlevel configuration file has been moved from "/etc/inittab" to "/etc/init/rc-sysinit.conf" ,and the default normal graphic mode is also changed to "env DEFAULT_RUNLEVEL=2" — Ubuntu 10.04 after…..
Just set your new runlevel here:
PATH: /etc/init/rc-sysinit.conf
/*************************
env RUNLEVEL=
*************************/

