Good morning Dariusd,
we need a Linux VM for testing purposes, in this particular case for a trainees course work. We have partitioning a hard disk as subject, explain the MBR and EBR, working with BIOS and last but not least with an EFI based system. So there is no need to install Debian, we can use Ubuntu as well and for this scenario we need only a terminal and a few commands.
Thanks a lot for your attention and your interesting
Bye from the Bavarian snow hills ;-)
Tom