VM doesn't boot up after converting to GPT from MBR

[powersupport]

I have tried to convert a disk from MBR to GPT by using a partition manager. I have also changed bios from seabios to OMVF and also added an EFI disk. However, the VM still does not boot up. It gets stuck at UEFI interactive shell. Someone please help me. Server is currently down

 

[timonych]

I have tried to convert a disk from MBR to GPT by using a partition manager. I have also changed bios from seabios to OMVF and also added an EFI disk. However, the VM still does not boot up. It gets stuck at UEFI interactive shell. Someone please help me. Server is currently downView attachment 14221

Hi,

For me workaround for Win8 was like this:

1. Create new WM and Install it.
2. Make a backup FAT32 partition.
3. Restore FAT32 Partition to old VM.
4. Make some changes with btmgr and uefi for Windows Boot.
5. Clone OVMF disk drive to old VM.

Or You can use rEFInd as bootloader in VM on FAT32 Partition.

 

[gachoinhac]

Hi,

For me workaround for Win8 was like this:

1. Create new WM and Install it.
2. Make a backup FAT32 partition.
3. Restore FAT32 Partition to old VM.
4. Make some changes with btmgr and uefi for Windows Boot.
5. Clone OVMF disk drive to old VM.

Or You can use rEFInd as bootloader in VM on FAT32 Partition.

Hi tymonych,

Could you guide us detail about changing something with btmgr and uefi for Windows Boot?