Booting Risc OS from UEFI on the Raspberry Pi 4

Hi there,

With the recent demise of the NOOBS bootloader/menu, I am looking for a new solution to boot multiple OSes from the same SD card on my Pi4 systems.

Thing is, UEFI now works on the Pi4:
https://github.com/pftf/RPi4/releases

So… should it be possible to boot Risc OS on the Pi4 using UEFI now?

Thanks!

NOOBS lite 3.7 still works. It worked installing dual boot between RPi OS Bullseye and RISC OS on RPi 4 from SD card.

Then imaging the SD card to USB enabled USB only dual boot after updating RISC OS CMOS file and RPi OS fstab and cmdline.txt.

https://downloads.raspberrypi.org/NOOBS_lite/images/NOOBS_lite-2021-05-28/

I am not looking at what works, Chris, but at what WILL wrk in the future. Of course I can use NOOBS right now, but it’s a dead-end.

I am trying to figure out what the next way to do it is.

How far in to the future do you need it to work. The RPi 4 could well be the last RPi capable of running RISC OS. Anything after Cortex-a75/55 can’t run RISC OS.

You are right on that one… :(