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Azure to WMware migration: Operating system not found

Posted: Sun Jul 16, 2023 12:59 pm
by yevpro
I am trying to migrate Azure VMs back to on-premises ESXi 6.5 server. Using Azure Storage explorer i download VHD disks, then using Starwind V2V converter i convert local .VHD file to remote ESXi server. The covertion goes without any erros.
But i am not able to start the migrated VM in ESXi. VM doesnt see the operating system on the disk:
Operating System not found.

I have tried 2 different VMs - same result. I have tried to upload the converted disk image to datastore and create manually a new VM using that disk - same result.

VMs had windows 11 and windows server 2019 installed. Both were initially created in Azure.

What might be the problem?

Re: Azure to WMware migration: Operating system not found

Posted: Sun Jul 16, 2023 9:04 pm
by yaroslav (staff)
Try changing the boot order and specify BIOS or EFI as boot type.

Re: Azure to WMware migration: Operating system not found

Posted: Thu Nov 16, 2023 10:32 pm
by cpalacios
Hi there,

Any update on this? I am also getting the same issue.

-Christian

Re: Azure to WMware migration: Operating system not found

Posted: Thu Nov 16, 2023 11:41 pm
by yaroslav (staff)
Try converting the disks and try using IDE controller instead of SCSI for boot volume.

Re: Azure to WMware migration: Operating system not found

Posted: Tue Dec 05, 2023 4:19 am
by hanglament
I also encountered the same situation. Thanks for the help, it worked

Re: Azure to WMware migration: Operating system not found

Posted: Tue Dec 19, 2023 2:38 am
by capertrouble
It's really hard to know where the error occurred. I did the same thing as you twice and failed.

Re: Azure to WMware migration: Operating system not found

Posted: Tue Dec 19, 2023 7:00 am
by yaroslav (staff)
Did you try conversion in repair mode?