moving vm from forest A domain A on hyerv1 to hyperv2 domain B forest B

Question

We have two separate forest A and B and each have couple of hyperv nodes

We have created a ton of vms on hyperv1 on domain A forest A now we wand to move them to hyperv2 which is located on forest B and domain B

Two way trust is available between forest A and B

Also I can establish ps-session bidirectionaly from hyperv1 to hyperv2

But when I try to move vms from forest A to forest B it will show the following errors

Also modified trusted hosts of wsman but still no hope

Any idea or help

Answer 1

If you need to migrate those virtual machines live, you have to grant appropriate permissions for the host instances in your Active Directory on both sides since, as far as I remember, the migration is triggered using the host account, and it is not accepted by default when doing a cross-domain migration.

If you have the option to shut down the virtual machines during the migration process, I would recommend you do that and just export->copy->import them the regular way or use a free V2V converter https://www.starwindsoftware.com/starwind-v2v-converter to speed up that process or perform batch processing.

Answer 2

Hi Shad,

Thanks for your post. Please make sure that you have done the following steps:

1. On the Hyper-V host to be managed, open a Windows PowerShell session as Administrator.
2. Create the necessary firewall rules for private network zones:

Enable-PSRemoting

3. To allow remote access on public zones, enable firewall rules for CredSSP and WinRM:

Enable-WSManCredSSP -Role server

Reference: https://learn.microsoft.com/en-us/windows-server/virtualization/hyper-v/manage/remotely-manage-hyper-v-hosts#connect-to-a-windows-server-2016-or-windows-10-remote-host-outside-your-domain-or-with-no-domain

Best Regards,

Ian Xue

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