I'll show you how to do a FULL INSTALLATION of Linux onto a USB drive in a (relatively) safe way using VirtualBox. This is not a live USB with persistence, but rather, a full install. Towards the end of the video, I mention that you are creating the installation in legacy mode. You can also create it in EFI mode if you select the option in VirtualBox. Contact me: Twitter: @sleepyeyesvince MeWe: https://mewe.com/i/sleepyeyesvince