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  • Disabling Secure Boot on a Hyper-V guest

    To test out the MAP Toolkit, I wanted to have some Linux machines for it to detect. 
    I created a virtual machine with an empty virtual had drive file and associated the latest Mint ISO file to the DVD drive.
    On boot-up, I see it didn't like the ISO:

    "The image's hash and certificate are not allowed (DB)"


    It says "not allowed" rather than missing, corrupt or whatever so looks like a Secure Boot problem, as discussed here:

    So into Powershell:

    [hyper-v-host]: PS C:\> get-vm
    Name               State CPUUsage(%) MemoryAssigned(M) Uptime   Status             Version
    ----               ----- ----------- ----------------- ------   ------             -------
    Linux Mint         Off   0           0                 00:00:00 Operating normally 8.0


    [hyper-v-host]: PS C:\> get-vm -name "Linux mint"
    Name       State CPUUsage(%) MemoryAssigned(M) Uptime   Status             Version
    ----       ----- ----------- ----------------- ------   ------             -------
    Linux Mint Off   0           0                 00:00:00 Operating normally 8.0


    [hyper-v-host]: PS C:\> get-vm -name "Linux mint" | Get-VMFirmware
    VMName     SecureBoot SecureBootTemplate PreferredNetworkBootProtocol BootOrder
    ------     ---------- ------------------ ---------------------------- ---------
    Linux Mint On         MicrosoftWindows   IPv4                         {Drive, Network, Drive}


    [hyper-v-host]: PS C:\> get-vm -name "Linux mint" | set-VMFirmware -EnableSecureBoot off

    After which, restarting the virtual machine gives me:




    Print | posted on Monday, February 3, 2020 10:44 PM | Filed Under [ Hyper-V Linux ]

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