Operational Defect Database
BugZero found this defect 2373 days ago.
Data sources
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Veeam | kb2407
Restoring GPT Disk to Incompatible Legacy BIOS System
Last update date:
10/4/2021
Affected products:
Veeam Agent for Microsoft Windows
Affected releases:
ALL
Fixed releases:
No fixed releases provided.
Description:
Challenge
After selecting a restore point during the bare metal restore configuration, the following message pops up: OS disk in backup uses GPT disk.This may cause boot issues on BIOS systems. If this is ignored and the restore process completes, the following may happen when the restored machine boots up: No boot disk found or An operating system wasn’t found
Cause
This warning occurs when the Veeam Bare Metal Recovery environment detects that the machine it is running on currently has a BIOS that is not in UEFI mode, and the backup file attempting to be restored contains GPT formatted disks.A system with legacy BIOS mode only is not able to boot to an operating system using GPT.
Solution
Check BIOS Settings First Check BIOS boot settings of the machine being restored to and determine if it can be configured to use UEFI instead of Legacy mode. If the machine can be configured to use UEFI boot, the steps below do not need to be performed. For VM's this setting may be enabled in the Virtual Machine settings: vSphere VM Hyper-V VM must be Generation 2
More Information
If the system does allow for both MBR and GPT partitions, check with your vendor whether this can be changed in the BIOS settings of the system.Restoring MBR Disk to Incompatible UEFI System - KB3156.
