How to do a screencast?

Question

Video

Background
There is a factory that produces a certain product. Equipment for the production of this product was created by one foreign company. The equipment is automated, the APCS uses a server, which will be discussed.
Essence
The other day the server crashed. There is a backup that the company is ready to deploy for a decent amount. We want to capture the recovery process in detail, so that later, if necessary, we can do it ourselves.
Actually the question is
How to humanly (and not sitting in front of a monitor with a camera) record a video of the recovery process, provided that most of the work will be done by booting from a live cd?

Answer 1

If they run from their live cd, then they will hardly give you access to the computer at this time to run the video recording program.
Only 1 option, which you said to take a camera and write, because maybe the server will reboot a few more times.