It seems that existing guides of how to boot from USB are out of date, and the one here (https://learn.adafruit.com/external-drive-as-raspberry-pi-root/hooking-up-the-drive-and-copying-slash) didn't work, as it didn't alter the root, though it copied all my files to the SDD.

I don't want to mess up any important files, as I don't know much about them. Is there any up-to-date tutorial for a beginner?

  • What Raspbery Pi model you are using? Is it a RPi 3B+?
    – Ingo
    Mar 25, 2019 at 18:02
  • It seems that existing guides of how to boot from USB are out of date no, they are not, of course, depends on what you're reading. Going to AdaFruit to get instructions on raspberry pi is like going to a driving instructor to learn how to fly a jumbo jet. With respect to AdaFruit, they barely know their own "products" so, you're not going to get any useful information about something they didn't "make" Mar 26, 2019 at 1:41
  • @Ingo, yes, it is a Raspberry Pi 3 Model B+, from the box. Do you know of and recommend a guide that works without any in-depth technical knowledge?
    – user96931
    Mar 26, 2019 at 15:10
  • Hmm. I found a topic here (raspberrypi.org/forums/viewtopic.php?p=1385780) and the third post seems to fit my needs. I'll update this if it works.
    – user96931
    Mar 26, 2019 at 15:17
  • Ok, I've got it working now :)
    – user96931
    Apr 30, 2019 at 20:07

1 Answer 1


The Raspbberry Pi 3B+ has improved boot capabilities. It can boot from any USB drive out of the box. Just flash an Raspbian Image to the USB storage like you do it with a SD Card. Put it into one USB port on the RasPi and boot. The only thing is that there must not be a SD Card in its slot. The RasPi will always first boot from it if it find one.

  • Except that it's not any USB drive, just some USB drives.
    – ccpizza
    Aug 17, 2019 at 8:51

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