I installed Armbian onto a reliable 16GB class 10 SD card, put it into an Orange Pi 3 with a 5v 3000 mA power supply (not a phone charger) and I've bumped into this error..

ALERT! /dev/mmcblk0p1 does not exist. Dropping to a shell!

The armbianmonitor -u command was not found so I had to take a photo of the computer screen.

 

 

I'm not sure what is going on here and I couldn't find someone who had this error on an Orange Pi 3 before.

 

If anyone has some advice I'd love to hear it.

I fixed it.

I reloaded the OS on the SD card an it worked after that. It must not have loaded correctly the first time.

Make sure to verify the written data.

Also keep in mind that this process verifies the written data only but nothing else. So Etcher for example cannot test if the left free space of the sd card has issues.