Pine64 Boot from HDD / USB etc working with original debian image:
pine64-image-debianbase-310102bsp-2
just add here: /boot/uEnv.txt
root=/dev/sda1
or
root=UUID=d5188f7b-4ef5-4596-af76-30491e6b247e rootwait
and change /mnt/usb_1/etc/fstab… if you mounted it to usb_1
That’s it!