Thanks a lot for your reply. However, I can't change it to the way it works in SuSe. For instance, I can change it to boot straight to the command with no X server. All I do in SuSe is do this in /etc/inittab and make it like this id:3:initdefault

Looks like to me Ubuntu has only 2 runlevels. One is single user mode (that's is 1) and another is for all with GUI (that's is from 2 to 5). That's kind of turn me down. Say, if someone wants to use Ubuntu to run for a file server, and she/he only needs to run with full multiuser with network without GUI. That's impossible. Right? Because you can't change it to telinit 1 sine that is single user mode only. I like the traditional way like Redhat and SuSe, which have 6 runlevels. Also, after I modified the file in /etc/event.d/rc-default and change to telinit1 for single user mode, my machine didn't pass the reboot. It's hanging right before it loads windows manager.

I don't know if anyone in here know how to make Ubuntu boot straight to the command line without GUI involved? I heard about upstart? Did anyone use this kind of thing yet? Please helppppppppppp. Very appreciate that.