The NanoPi is not officially supported on Ubuntu, as you are using a
custom build. I would advise to report the bug to your image
distributor. Marking as invalid. Since the error is `
mmc_load_image_raw_sector: mmc block read error` from uboot it might be
related to uboot anyways.
** Also affects:
** Description changed:
On a freshly installed NanoPi R4S, the first reboot hangs with this
error:
### ERROR ### Please RESET the board ###
All reboots after this work OK. The problem only exists with the
oracular image from https://sd-card-
images.johang.se/boards/nanopi_r4s.htm