What is Kali Linux?
Kali Linux is a Debian-based Linux distro made by security professionals (Offensive Security) for security assessments, penetration testing and digital forensics. It comes with hundreds of open-source tools grouped for effective use and optimized for speedy network discovery and vulnerability assessment.
How To Download Kali Linux
I downloaded a normal ISO image to see how installer works, but it's also possible to just get the VirtualBox VM image with Kali Linux.
Kali Linux Installation Screenshots
Here are the screens of my install process – nothing unusual and a fairly smooth install process.
I think I got them here in the right order, but if something's off and not straightforward – let me know!
As always, I had to do install more than once because disk size is suggested as 8GB in VirtualBox which is not enough for modern Debian derived installs – so installer fails halfway and you need to expand the disk – I've seen the same issues trying to install Debian 10 Buster.
Will try and install it onto Raspberry Pi 4 as one of the upcoming Unix Tutorial projects.