[SOLVED] Veeam Backup VMWare to Proxmox boot error

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noipname

New Member
Oct 8, 2025
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Hello everyone,

To day i tried to restore a Server 2019 to Proxmox via Veeam Backup but that didn't work...

With SEABios:
The error i have is : inaccessible boot device (windows rescure mode)

With OVMF:
The error is : 1760966954084.png


I already installed QEMU Agent for Virtio in the VM
I have the lastest Veeam Proxmox Plugin someone have a same issue ?
 
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Reactions: Johannes S
fba said:
Hello

it seems the vm is missing suitable storage drivers. Switch to SATA for disk temporarily and install drivers before switching back or pre-install the drivers before migration like described in this thread.
Also have a look at https://pve.proxmox.com/wiki/Migrate_to_Proxmox_VE#Migration
and
https://pve.proxmox.com/wiki/Windows_VirtIO_Drivers
Click to expand...
Hello, thank you for the anwser, humm i already installed the driver before backup the VM but that not work too...
i changing format disk to sata on my proxmox and that boot on windows !!! :)

If i rechange for SCSI format proxmox can't boot again and stay on rescue mode of windows :(
 
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Reactions: RoxyProxy and Johannes S
fba said:
Installing the virtio scsi driveris not enough, it must be enabled for getting loaded on boot.
The required procedure is described in detail here: https://pve.proxmox.com/wiki/Paravirtualized_Block_Drivers_for_Windows
Or
you run the PowerShell script provided here: https://github.com/derhanns/load-virtio-scsi-on-boot/

Only after these procedures a migrated windows will be able to boot from scsi drive.
Click to expand...
Ok thanks you, i tried another method, detach the disk and edit it to sata (machine boot) attach another disk 1GB in SCSI to load the driver virtio, poweroff the vm and reconver sata disk to scsi and that work :)

Thanks you for your help :)
 
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