Unable to install Windows with iPXE and sanboot WinPE iso

[robinsmidsrod]

If you want to continue using sanboot to install to a local disk, you might have luck with the --drive 0x81 parameter to sanboot, because that should instruct it to not set itself (winpe) as the first bios drive in the machine. My guess is that this is the reason why you get the message about not being able to install to your local drive. But I would also suggest that you use wimboot (as already mentioned), as it is usually faster than doing a sanboot of a WinPE iso. See the tutorial already linked by zhang_liang.