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Joachim_Otahal's avatar
Joachim_Otahal
Iron Contributor
Feb 26, 2024

ISO Build 26063 fails to boot in Hyper-V - but why?

Edit 2: Feedback Hub Link https://aka.ms/AApb1l0

Host is Windows 11, new empty virtual machine, 8 cores, 20480 MB RAM, network connected, rest default, AMD 5950x, trying to boot

Windows_InsiderPreview_Server_vNext_en-us_26063.iso, MD5 D6F8AEE061B689606F22F6A80A383142

and I get this - Hit a key after three of six dots, and it skips to PXE:

 

So I swap to Windows_InsiderPreview_Server_vNext_en-us_26040.iso, and it instantly works!

 

Anybody else having the same effect? Did something change which I fail to see? I would LOOOOVE to get into the bug bash, hoping the deduplication corruption in insider and Server 2022 would finally be noticed and fixed, but it does not even boot!

Looks like I have to install 26040 first (missed the 26052 download, was sick) and then upgrade by running setup.exe from the virtual DVD.

 

EDIT: Just tested, exactly the same on a Lenovo Laptop with i5-10210U CPU with Windows 10 Enterprise, 26063 iso does not boot, 26040 iso does.

    • Joachim_Otahal's avatar
      Joachim_Otahal
      Iron Contributor
      I only see the normal announcement, and not the comment try you link to.
  • VTron21's avatar
    VTron21
    Copper Contributor
    Same here, cannot boot to the 26063 ISO using Hyper-V on Server 2022 Datacenter.
  • somewinuser1969's avatar
    somewinuser1969
    Copper Contributor

    Joachim_Otahal 

    yes, me too, the same. so i did a build 26058, and within a running instance,..
    did a clean setup.exe from the 26063 build

     

    Also on a host win server 26063 it gives the same error (it doesn't detect the keyboard orso)

     

    Another alternative, is:
    - use a copy vhdx of a working windows installation
    - shift F2 safe boot
    - repair, go to command prompt
    - type 😧 (your build 26063 iso)
    - run setup.exe

    • Joachim_Otahal's avatar
      Joachim_Otahal
      Iron Contributor
      The upgrade path does not seem to work in my case. I have to use the VHDX version I guess. Quite a bummer for "Use This Build For Bug Bash".
      • somewinuser1969's avatar
        somewinuser1969
        Copper Contributor

        they revamped the setup/install. if you run the setup as i described, you see a brand new setup action menu, i never have seen before.

         

        just install an older version ISO build first

        then,
        and after it (re)boots, press F2 / repair -> SAFE boot -> command prompt -> DRIVE 😧 
        type: SETUP.EXE

         

        what will work for sure

        I run now the newest WServer Build 26063 in Hyper-V. (and a nested one as well)

        works okey, but indeed won't boot when having the Windows_InsiderPreview_Server_vNext_en-us_26063.iso attached


        it looks it doesn't detect the keyboard quick enough
        it's pretty nice (but not working very good)

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