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Asked: 2021-09-11 11:35:32 +0800 CST

Can Ubuntu Server 20.04 64-Bit boot from USB device on RPi 3B+?

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It boots for RPi4 from USB device, so I assumed it would also for the RPi3B+. However, I have not had any luck so far. Is there some extra step needed, or do I fundamentally need to boot from SD card and mount the file system separately? (I'm surprised how little comes up when googling this.)

20.04

1 Answers

  1. I tried booting a third time, this time from a different USB slot, and it worked! RPi3B+ Ubuntu does boot from USB out of the box.

    Edit: I am finding that all three RPi3B+ units in my cluster are consistently failing to find my USB SSD device if inserted in the two USB slots not right next to the ethernet socket.

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