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Make Raspberrypi boot from USB first

Raspberry Pi Asked by PokerFace on December 13, 2020

I have RaspberryPi 3B+. I read that there is a way to make my raspberry boot from USB by changing config.txt that will change the OTP. Is there a way to make my raspberry to boot from USB and only if there isn’t USB connected or bootable it will try to boot from SD?

One Answer

Is there a way to make my raspberry to boot from USB and only if there isn't USB connected or bootable it will try to boot from SD

Here you can find details about the Boot sequence of the Raspberry Pi. It is described in detail there but in short you will find, that the Raspberry Pi will allways first boot from the SD Card if one is inserted with at least containing the bootcode.bin file.

So it is not possible what you want. As long as the RasPi finds a bootable SD Card, it will boot from it first.

Answered by Ingo on December 13, 2020

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