Actually I'm trying to get QSINIT to interface with PXEOS4 which is apparently possible for network booting, but I have no idea how to configure it.
I get PXEOS4 initialising the boot process, but from what I can make out it tries to transfer control to the local hard disk, AFAICT.
I'm not sure if QSINIT can create a virtual disk and boot from once PXEOS4 has initialised the boot process from the network.