If you change the "id:6:initdefault:" in /etc/inittab to
"id:3:initdefault:" you will get a console login upon reboot

What you want is to change the default runlevel to 3 from 5.
Open Linuxconf and under "Boot" you should find what you are looking
for. Linuxconf has both text and graphic interfaces so it can be used
to switch back and forth.

Also check the archives for recent articles as there have been several
having to do with this sort of thing.

Find /etc/inittab and open it in a text editor as root

change the line that reads:
id:5:initdefault:

to:
id:3:initdefault: