Windows Server 2016 as guest on bhyve 4k emulated drive

[Artur Moor]

Hello,

if the option 'sectorsize=4096/4096' for the emulated drive specified, the
installation process of "Windows Server 2016" completes the first stage
('Copying Windows files', 'Getting files ready for installation',
'Installing features' etc.) and fails after rebooting to the second stage.

The second stage ends with the following message:
Boot Failed. Windows Boot Manager
Boot Failed. EFI DVD/CDROM
Boot Failed. EFI DVD/CDROM 1
Boot Failed. EFI Hard Drive

I suppose that Windows Boot Manager has problems when booting the 4k
emulated drive.

Does anyone have any idea what can be the cause of this?

Thanks in advance for any hints!

Artur