What is the best way to create a persistent live USB stick (where I can install packages on the fly, that saves command history etc., mostly used to fix computers, mount file systems, use gparted etc.).
Mostly like Knoppix used to be, but that is too much out of date already.
It's about an install image (where I dd it on the stick), and I don't want to use any Windows Tools to create the stick, but an existing Debian installation.