Early versions of the Raspberry Pi could only boot from SD cards, but newer ones can boot from any USB device, like an external drive or USB stick. Here's how.

Raspberry Pi won't boot? New Raspberry Pi 5 not booting? Try these Raspberry Pi troubleshooting tips.

This article focuses on the more recent Raspberry Pi 3 and 4, but the fixes outlined also apply to rival Odroid, Arduino, or Beagleboard single-board computers. Put it in a case!