@sheepzThe Firebird is able to run any Amiga operating system such as Amiga OS 3.2. If you only want to run that OS then you can use a program called VampireFlash to flash Kickstart 3.2 to the Firebird. It is permanently there until you decide to either update the CPU core, in which case you will have to flash Kickstart 3.2 to the Firebird again, or you choose to flash another Kickstart.
