mslab 24.04 - Importing hydrated DC VM fails to boot if the VM OS is WS 2025

[Karl-WE]

Scenario:
Host OS (Hyper-V): b26085 Windows Server 2022
Guest OS (DC): b26085 Windows Server 2025
mslab version: 24.04.01 - first noticed this in a 23.x release, appears to be related to WS 2025 changes.

Issue:
Using WS 2022 as host OS and WS 2025 for DC (2_CreateParentdisks.ps1). DC template can be created successfully.
When the hydrated DC is imported for a lab using 3_Deploy.ps1, the imported DC VM will fail to boot.

Repro

• Install WS 2022 as host OS
• enable Hyper-V
• deploy mslab 24.04
• Use WS 2025 ISO during 2_createparentdisks.ps1

Workaround:
Use WS 2022 as a guest OS

[Karl-WE]

This issue is under Investigation by Microsoft.