Windows Server 2016 core error

Hello,
When installing Windows Server 2016 Core on an Up Board Windows gives a error on the first time booting up.
It give the error INACCESSIBLE_BOOT_DEVICE.
It shutdown and keeps trying to boot up.
The Windows Server 2016 GUI installation has no problems and works fine on a Up Board.
We think it's a driver or UEFI problem.
Does any one have a idea to solve this problem?
When installing Windows Server 2016 Core on an Up Board Windows gives a error on the first time booting up.
It give the error INACCESSIBLE_BOOT_DEVICE.
It shutdown and keeps trying to boot up.
The Windows Server 2016 GUI installation has no problems and works fine on a Up Board.
We think it's a driver or UEFI problem.
Does any one have a idea to solve this problem?
Comments
Windows Server Core 2016 is missing drivers for the MMC card.
It are the drivers sdbus.inf en sdstor.inf.
Adding them to the Windows ISO and installing Windows works.
To add the drivers we extract the inf and sys files from the GUI version and them to the Core version.
In total 5 files
Windows\INF\sdbus.inf
Windows\INF\sdstor.inf
Windows\System32\drivers\dumpsd.sys
Windows\System32\drivers\sdbus.sys
Windows\System32\drivers\sdstor.sys
To extract en add them we used this guide as reference
https://community.spiceworks.com/how_to/125921-how-to-add-drivers-manually-to-a-usb-drive-to-install-windows-7-using-a-usb-3-0-port
https://github.com/sealsystems/tiny-cloud/tree/master/prepare-hardware/up-win2016
Personally I used Rufus https://rufus.akeo.ie/ to make USB stick and edit the WIM file directly on USB stick.
But your method works just as good.
It does work with Windows Server 2016 Core, but does not with Hyper-V Server 2016. I guess it misses some other driver. Can you tell me what else is needed?
couple of drivers until it works a again. Keep doing this until you find the missing driver.