Boot menu key assistant
Depending on the user OS and version (mac, linux, windows 7, windows 8) and its hardware, there is a lot of possible instructions and combinations. It would be nice to help the user finding the right key to press when rebooting.
Blueprint: https://tails.boum.org/blueprint/bootstrapping/booting/
Parent Task: #8588 (closed)
Subtasks
Original created by @sajolida on 8933 (Redmine)