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How to boot into bootable differencing vhdx in Hyper-V
Hello,
I am trying to upgrade my boot to VHD VHDX to the latest Windows 10 update using this terrific tutorial from @Kari: Native boot Virtual Hard Disk - How to upgrade Windows
However, I am having trouble getting the vhdx to boot in Hyper-V. Everything seems to work as expected, but when I get to step 1.18, Hyper-V gives a "The boot loader did not load an operating system" error booting off the VHDX.
I wonder if the boot files are getting created appropriately. When I run
c:\windows\system32\bcdboot c:\windows /s c:
it says it worked correctly, but if I run
bcdedit /v
after that, it says "The boot configuration data store could not be opened. The requested system device cannot be found."
The c: drive is available via the windows installation command prompt.
Other possibly useful information:
- The VHDX is a differencing disk, and the parent VHDX file is read-only
- The VHDX was created in Windows and initialized for Windows install using DISM. It was not created in Hyper-V.
Any ideas? Thanks in advance.