Ubuntu: How do you change default runlevels without inittab?

[Jack]

One way to do this is to go to the appropriate
/etc/rc?.d directory and change the S to a K 
for the starting of X script. As Jonathon has noted in

"modern" debian based distros runlevel 2-5 are
identical "out of the box". I believe that it
defaults to runlevel 2. So I'm surprised that you're
actually in runlevel 5. Are you sure of this?
While my method won't change your runlevel, you can
use
it to prevent X from launching in your default
runlevel. Which is what I think you're really wanting 
to accomplish anyway.

Brian
--- Leo Mauler <webgiant at yahoo.com> wrote:

> I've just installed Xubuntu on an older computer.  I
> want the option of running the GUI some of the time
> (such as for the Synaptic Package Manager), but I
> want
> to boot into text mode all of the time and run
> startx
> when needed.
> 
> So I go to edit /etc/inittab and change the default
> runlevel so that the GUI doesn't start on boot,
> except
> there is no inittab.  Instead, there's this entirely
> new thing called "Upstart".
> 
...