Bug in 32-bit 5.4.51 kernel, root fs on USB and USB power

[uberscubajim]

I've just upgraded my Pi 4B 4GB to the latest kernel. I have /boot on the SD card with everything else on an attached USB 3 SSD. Worked fine before, but after the upgrade I was just left with the rainbow screen.

On investigation I found that it was just waiting for the USB SSD to come up. Not a problem at all, except that it hadn't turned the USB power on! So no SSD and hence no progression beyond the rainbow screen.

Tweaking the

Code: Select all

/boot/config.txt

on another machine to use the 64-bit kernel meant that it booted fine! As the SSD is encrypted and therefore needs a specific initramfs I was very glad to have previously created all the necessary initramfs versions!

As always, I'm less of a role model and more of a dire warning. In this case warning people of that specific combination.

Feedback most welcome!