- Veeam Support Knowledge Base
- Restored UEFI-based Windows 2008 R2 SP1 cannot be booted in Hyper-V environment
Restored UEFI-based Windows 2008 R2 SP1 cannot be booted in Hyper-V environment
| KB ID: | 2848 |
| Product: | Veeam Agent for Microsoft Windows |
| Published: | 2018-12-24 |
| Last Modified: | 2022-08-11 |
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Challenge
Cause
The machine fails to boot due to a machine configuration that conflicts with Hyper-V.
- For Hyper-V guest Virtual Machines, Server 2008 R2 is only support for use with Generation 1.
- UEFI-based boot is only supported by the virtual machines using Generation 2.
Solution
As Hyper-V only supports Server 2008 R2 running in a Generation 1 VM, and Generation 1 in turn only supports MBR, the only solution to make the restored UEFI-based VM operational is to convert the bootloader from the incompatible UEFI (GPT) to MBR.
This process is documented in the Solution section of KB2407.
More Information
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