Windows 10: How to boot into bootable differencing vhdx in Hyper-V

Discus and support How to boot into bootable differencing vhdx in Hyper-V in Windows 10 Virtualization to solve the problem; 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... Discussion in 'Windows 10 Virtualization' started by herg39458, Jun 11, 2021.

  1. herg39458 Win User

    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.

    :)
     
    herg39458, Jun 11, 2021
    #1
  2. herg39458 Win User

    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.
     
    herg39458, Jun 11, 2021
    #2
  3. jimbo45 Win User
    How to boot into bootable differencing vhdx in Hyper-V

    Hi there

    You can try this method (from the Ms documentation) which doesn't need HYPER-V features so should work on any Windows version.

    https://docs.microsoft.com/en-us/win...-the-boot-menu

    Cheers
    jimbo
     
    jimbo45, Jun 11, 2021
    #3
  4. jimbo45 Win User

    How to boot into bootable differencing vhdx in Hyper-V

    How to boot into bootable differencing vhdx in Hyper-V

    Hi there
    OK understand now !!!
    Cheers
    jimbo
     
    jimbo45, Jun 11, 2021
    #4
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How to boot into bootable differencing vhdx in Hyper-V

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