ipxe boot windows 7 installer using wimboot - error

[KnightRaven]

I realize this post is older but is exaclty what I am butting into. Is there any other info out there that explains what needs to happen to get past the select driver screen. Been trying to boot to win 7 using iPxe wimboot from a fog install. Even after loading the NIC driver and mapping a drive back and re-running setup it still comes to the needs a driver screen.

Any details on this would be helpful. Is it actually looking for a driver? is it needing more setup files that perhaps didn't make it into the boot.wim? What is it looking for. Do the NIC drivers have to be embedded into the wim to work? Ive been able to manually load them from usb for testing but even on a PC that had drivers injected, I still get the needs driver screen.

Quite frustrating to be so close and cant get the install to work.

Thanks,
Jason