Live file systems allow booting Linux without installing to hard drive. System files are temporarily stored in RAM, changes aren't saved. Live systems are useful for testing, troubleshooting, and data recovery
Linux distributions are operating systems based on Linux kernel and package management. They include Linux kernel, utilities, libraries, and application software. Distros vary in community-driven vs commercial support and customization options
Linux is a free and open-source operating system created by Linus Torvalds in 1991. Linux distributions bundle all necessary software for running an operating system. Most supercomputers use Linux since November 2017
VirtualBox allows running Kali Linux as separate guest VM. VMs can interact with host, other VMs and network machines. BIOS/UEFI virtualization may need to be enabled
Live USB installation is non-destructive and portable. Customizable with custom Kali Linux ISO images. Can be configured for persistent storage across reboots
Kali Linux WSL installation via wsl --install is broken and missing keyring files. Apt-get update fails due to missing Kali archive keys. Apt-key command installation fails due to GnuPG signature verification issues