Since you asked for something that novice users could easily do, I found a step-by-step guide for that purpose:
LEDE documentation (more advanced): https://lede-project.org/docs/user-guide/drives
Since you asked for something that novice users could easily do, I found a step-by-step guide for that purpose:
LEDE documentation (more advanced): https://lede-project.org/docs/user-guide/drives