Pentium III, Compaq Armada. I need to wipe it clean. It's currently running old Mint v13 - Mate version. DVD drive is dead, so I can't use DBAN. It has 1 USB-1 port, but even if I could put DBAN on a flash, I'm sure this ancient box won't boot from flash. Are there any magic incantations in Mint that I could do to clear all user data, email and router passwords, etc?