Since Kickstart no longer has the '--start' and '--end' options for the
partition command, we need to do this manually.
3e655d4c5d
Why do we need to do this at all? Well, because some SoCs read U-Boot
from the boot media at a particular offset. Normally, the first
partition starts at 2048 (with fdisk) or at 8192 (if using Kickstart)
which means that something from the first partition will be erased, or
data written here will eventually overwrite U-Boot if U-Boot is greater
than 2MiB.
Looking at the biggest file in 'uboot-images-armv8' package, the biggest
file is ~12 MiB so the double of closest 2's exponent results in 32MiB.
Some SBCs, like the Raspberry Pi (at least up-to RPi4) lineup needs MBR
partitioned disks, while other, more newer SBCs, like the Orange Pi 5,
needs GPT partitioned disks. So create two disk images.
