Troubleshooting • Re: Pi 5 no longer boots from USB SSD

It's a bit of a long shot but please can you try adding the following command to config.txt on the SSD
enable_uart=0

If you have another Pi e.g. Pi4 that can boot from that SSD then it might be worth trying to run "sudo apt update; sudo apt full-upgrade" on the SSD

Thank you for replying so quickly.

I edited config.txt on the SSD. The enable_uart=0 did not have any effect on boot success or behavior.

No success booting the Pi 400 from the SSD either - but I came close. Note, the 400 is also powering the official Pi monitor. First I tried the SSD plugged into a powered USB hub. No luck at all there. I'd have thought it might since I was taking the power load off to some degree. Then I plugged the SSD directly into my one remaining USB3 on the Pi 400, and it momentarily showed the desktop, before blanking. Subsequent attempts yielded an error for MSD on USB3: "over-current." It kept trying to reboot but produced the same error. Again, this was on the 400. No such diagnostic errors (or anything) ever came up on the screen when I tried booting the Pi 5 from the SSD. Strange that it used to work ....

So I was unable to run apt update and apt full-upgrade on the SSD.

FWIW the Pi 400 and the Pi 5 are both powered by their own official Pi power supplies.

Statistics: Posted by cspan — Thu Dec 19, 2024 6:26 pm

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