Does Raspberry Pi 4 support boot medium other than SD card. Can I boot raspberry Pi from EMMC or NOR flash ?

Thanks, Swapnil


1 Answer 1


Other than SD card, It is possible to boot Raspberry Pi from USB.

Some Raspberry Pi Compute Module 4 (CM4) boards come with a built-in eMMC flash chip for storing nonvolatile data. This chip replaces the need for a separate SD card, which can be useful if you want to save space on your expansion board or don’t want the user to flash an SD card.

  • Thank you for the reply. SD card is not considered reliable in industrial environment. Same goes for USB. Basically I wish to know whether it is possible to configure an EMMC as boot medium. Any thoughts/information you have regarding this?
    – Swapnil
    Feb 21, 2023 at 15:41
  • I am looking for Raspberry PI 4 board only. I did google and mostly saw that SD Card, USB is mentioned. But I am looking to see if anybody has used EMMC or any other boot medium which is considered reliable for industrial use.
    – Swapnil
    Feb 21, 2023 at 15:49

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