Right. That is what I saw. It would give an error the first time, then if you did ‘make image’ a second time without doing anything else, it would complete. However, it is not the same size as the image downloaded from Sierra’s Source. It is missing the boot image, but the total size of the other images aren’t the same. about 4K less, which is disturbing. Can you verify the images you got, and why isn’t the bootloader in there?