Hi, i would like to know how to start a Debian based OS without X (no gui, only console) by editing or adding a line in gnu grub. Does any one know how to do this? I need to install some video drivers before it will load the GUI. Thanks a lot

Just eliminate either loading gdm, or kdm now your system will load at the gui...
you can use sysvconfig at root to stop these initial services..

Or whichever display manager (kdm/xdm) you're using.

To restore it back:

boot the system..

CTRL+ALT+F2 - to get to a command prompt so you can login as root
/etc/init.d/gdm stop - Shut down gdm/X

aptitude update
aptitude install build-essential module-assistant
m-a update
m-a prepare

OK now you are ready to install/compile your nvidia or ATI drivers..

it will not fully load up. It dies loading the linux video drivers that do not work 100%. I need a to edit some thing in gnu grub to disable Start X (GUI).

We gave you a few alternatives. None work? Strange..... How did you install Debian? You only need a base system for CLI. (no gui).

I said that it was a Debian based os. It is untangle firewall/router OS. I really need to know how to disable the GUI. Thanks

I need a way of editing the info in gnu grub. Thanks a lot

You don't disable X by editing grub.. My post told you how to boot the system, get to a command prompt then shut down gdm/x
I even included directions on how to install the compile environment and Kernel headers so you could compile a nvidia or ATI driver.. if you know a better way then please share, but what I posted has always worked for me on Debian based systems.

Have you booted in single user mode yet?On debian it has 2 entries in grub.Multiuser and single user.If you boot using single user it boots to a root password command.You can do your repairs from a cli.If it dosent have a single user mode entry in grub..you can use "e" to edit the grub command and add single to it and then enter "b' to boot..it should boot as single user...then you can use nano to edit xorg.conf and change driver to vesa and see if that gets gui working.
Like this
/boot/vmlinuz-2.6.26-1-686 root=/dev/hda1 ro single

How did you install the system initially?

I've asked around on the Untangle forums about this very issue, a while back, and gotten the response from the developers that, because of the way the GUI is integrated into the distro, there is no way to launch without it without breaking the system.