Series of Hyper-V errors

Microsoft-Windows-Hyper-V-VMMS/Admin

Failed to import correctly the device '%5' for '%1'(VMID %2). Error: %3 (%4) .

Microsoft-Windows-Hyper-V-VMMS/Admin

Failed to import unknown device '{ResourceType=20, OtherResourceType="<null>", ResourceSubType="Microsoft Synthetic Display Controller"}'.

Microsoft-Windows-Hyper-V-SynthNic/Microsoft-Windows-Hyper-V-VDev-Admin

The description for Event ID 12580 from source Microsoft-Windows-Hyper-V-VStack-SynthNic cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.

If the event originated on another computer, the display information had to be saved with the event.

The following information was included with the event:

8D677AB8-31E1-40F4-9A7E-7EA8EF70CBFC

58FBD88F-265F-4224-AD1E-F08EE3A859C6

Synthetic Ethernet Port

00-00-00-00-00-00

Solution: I got this error message when I did not have KB949219 applied to the Hyper-V host. It worked fine after patching the system.

Error: Hyper-V Manager, An error occurred while attempting to change the state of the virtual machine. failed to read or update VM configuration: Unspecified error (0x80004005)

Solution: I got this error message when I did not have KB949219 applied to the Hyper-V host. It worked fine after patching the system.

I am running production guest VMs on Windows Server 2008 Hyper-V Release Candidate 1. Now that Hyper-V Release Candidate 1 update-- KB950049 has release, I decide to run Windows update to patch my OS.

It turns out that Hyper-V Release Candidate 1 update requires an update to VM Integration Services on all guest VMs. Be Warned, You will have to update each guest VM manually and restart them.

Step-by-step on how apply the update for Hyper-V RC1—KB950049. http://support.microsoft.com/kb/950049

1. Shutdown all running guest VMs
2. Run windows update on the host to retrieve the patch. ( Server Manager > Configure Updates > Check for Updates)
3. Click “View available updates”
4. Choose “KB950049” and Click Install.
5. Once installation completes, Choose “Restart now”
6. When THE host comes online, remote desktop into the system
7. Turn on guest VMs on the host, login to each VM
8. On each guest VM, you will notice the “Found New Hardware found wizard”. Click Cancel on “Found New Hardware found wizard”. From “Action” menu of “Virtual Machine Connection”, select “Insert Integration Services Setup Disk”. This will update the (You may need to click “Update” on Server 2008 VM)
9. Once installation is complete, you will be asked to reboot the guest VM.

Here is a high level over view of how you can duplicate your existing Active Directory environment to lab environment.

1. On Production network, create a new VM and promote it to a domain controller (run dcpromo)
2. Once replication is completed, shutdown the newly created VM and move it to the lab environment
3. Turn on the VM in the lab environment, seize Operations Master (OM) roles using NTDSUTIL utility,