Working with OC on external memory?

Question

PHP

Hello. I would like to know how it is possible to work with another OC (like linux) by simply connecting a flash drive (or hard drive) to the computer? Those. without a flash drive (or hard drive) I will have Windows, but with a Linux flash drive. And, of course, with saving the changes.
Thank you.

Answer 1

require_once($_SERVER['DOCUMENT_ROOT'].'/engine/core/connect.php');

Answer 2

everything is described here: help.ubuntu.ru/wiki/ubuntu_%D0%BD%D0%B0_usb