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