Switching ubuntu boot from graphics to text mode.

This one has always puzzled me and make me go round and round few times now on all my new VM's, so I decided to note down what I did this time.

To Change the Graphic boot to Text mode on startup all you need to do is modify your /etc/init/.cfg file.

In my case I was trying to do this with gdm.cfg based on many google results however, I missed a crucial point that I had selected another Display Manager lightdm. After trying few things I finally realized the mistake. So here is the snippet from /etc/init/lightdm.cfg (This should be same for gdm as well in gdm.cfg):

start on ((filesystem
           and runlevel [!026]
           and started dbus
           and (drm-device-added card0 PRIMARY_DEVICE_FOR_DISPLAY=1
                or stopped udev-fallback-graphics))
          or runlevel PREVLEVEL=S)

stop on runlevel [016]

You can change the runlevel in

stop on runlevel [016]

but I didn't find it necessary, just changing it in start on section did the job.