Anyone iPXE booting Windows10 ?

[16again]

Over here, doesn't work:

WinPE environment sees iSCSI target to install to. Install goes fine....until install needs to reboot. On reboot, iPXE part of booting goes fine, windows boot loader is started....but runs into an inaccesible boot device.

afaik, during boot process the system loads registry settings and boot-time drivers, and then re-mounts C:\ drive using disk driver and settings from registry. I assume that's the failing stage, resulting in an inaccessible both device.

Tried both W10Pro and W10Ent, same result.

W8.1 Windows server 2012R2 and even server2016 Preview3 all iPXE boot fine.

Hints & tips welcome