I am trying to create a new boot image for a CD for QNX 6.5.0SP1. How do I do this?

I assume I have to modify /boot/build/finstall.build and re-build a new image. Although I am not sure if this image that
 is used to build the instalflop.dat (bootable CD image in the runtime kit) or not?

Then I think I need initialize an actual floppy with this new boot image and then copy the raw floppy /dev/fd0 back to 
disk.

That image then becomes the replacement instalflop.dat for the runtime kit.

Is this correct?