Automatic loading of a ROS launch file

edit

If you want to disable Ubuntu's GUI, you can follow these steps:

Edit "/etc/init/gdm.conf" and comment out the following lines:

 start on (filesystem
           and started hal
           and tty-device-added KERNEL=tty7
           and (graphics-device-added or stopped udevtrigger))

so that they look like this:

#start on (filesystem
#          and started hal
#          and tty-device-added KERNEL=tty7
#          and (graphics-device-added or stopped udevtrigger))

As far as autoboot of roslaunch, I've demonstrated that in my answer to this question. Have a look.