I'm configuring some PCs for a school computer lab and what I want to achieve is that every time I boot the PC the script deletes a student user and recreates it to restore all default setting of the machine.
It is possible to achieve this configuration? I have tried it with a script and partial work until I logoff with the teacher user after that I can see student user and log in correctly with all defaults restored. What I want to do is to have the student user at login.
Install Ubuntu 16.04 LTS from the first point release, 16.04.1. It will stay with the xenial kernel series, now at 4.4.0-112, and will be supported until April 2021. You find the iso file and md5sum at the following link,
old-releases.ubuntu.com/releases/xenial
There is a working guest session in this version. It is true that it is not as safe as a confined session, but I think it can be good enough for this purpose.
The guest session is temporary. A new guest session is created every time someone logs in to it.
A simple alternative is a live Ubuntu system (typically booted from a DVD disk or USB pendrive). It can be installed into an internal drive, if that would be best, for example with mkusb.
A live system (live-only, not persistent live) will be reset to the original state after reboot or shutdown.
