I’m working in a lab with a lot of machines and my idea is to bypass the grub and boot in an auto log session and once logged a script will start a full screen windows with three buttons on it: Windows Ubuntu and Reboot. When the client click on Windows the system will reboot in Windows which is installed in a second partition on the same computer, when he clicks on Ubuntu the computer will log out of my auto log session and give an option to the student to open his session in Ubuntu. Now the question was how to start in Linux full screen window with no option to close it because this is my session and the student has nothing to do in it.
Nothing harmful to do just I bypass the grub which Is difficult to control in distance and auto log in my session
Can you help me with that?