When downloading pre-built images (Damaso / Wolfanoz / etc) and attempting to run them on a newer Pi, they typically fail with the message Start4.elf is not compatible or This board requires new software
To fix newer boards vs. older, incompatible boot files:
- Write the image to an SD card.
- Navigate to https://github.com/raspberrypi/firmware/tree/master/boot
- Download all the fixup*.dat and start*.elf files (~16 files total)
- Mount the boot partition onto a computer
- Paste the fixup*.dat and start*.elf files into the appropriate folder, overwriting what is already there
- umount
- Try booting the Pi again with the updated SD card (it should now work in theory)
Note: some images seem to use different filesystems for the boot partition, deviating from the norm. These can be a bit tricky to deal with and/or just require them to be mounted onto a Linux vm / machine in order to properly update the files