Windows Virtual Machine fails to boot with "INACCESSIBLE BOOT DEVICE" after change from i440FX to Q35 Machine type

Solution Verified - Updated -

Issue

  • Virtual Machine running on RHV failed to boot after changing the Cluster Compatibility Level to 4.4 or higher.
  • Virtual Machine running on RHV failed to boot after changing its custom Chipset from i440FX to Q35
  • Virtual Machine running on RHV with older i440FX chipset fails to boot after migrating it to OpenShift Virtualization using MTV.

Environment

  • Red Hat Virtualization 4.x
  • OpenShift Container Platform 4.x
    • OpenShift Virtualization
  • Migration Toolkit for Virtualization (MTV)
  • Microsoft Windows Guest using VirtIO, IDE or SATA drivers

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