Also molk is booting the pegXmac install now cleanly from the bootmenu. I just have one last tiny issue in that when molk boots, it probes a range of frequencies from the monitor, some of which are too high for my monitor to cope with so when osx starts up, it selects a refresh rate too high for my monitor to display and its shutting down.
I have a theory that its because I use it on a kvm, the probed frequencies are what the kvm tells the client computers what it supports, not what the monitor is capable of.
I'll hook a screen up to it directly and confirm this and work a way out how to force it to certain modes at boot as a fix once I can see it.