How to change Guest OS type using powercli

[dharmendrarhce]

Hi ,

There are couple of VMs in my vcenter are having window 10 but in VM setting , it is showing Window 8 .

How can i change it in bulk using powercli . I have all the list of mismatch VM.

Any help

[admin]

see below article -

Scripts: PowerCLI: Detect and Change Guest Selected OS [SHIFT]

it might be help you to change Guest OS type.

If you found my answers useful please consider marking them as Correct OR Helpful

Regards,

Randhir

[LucD · Accepted solution]

You can create a VM and specify whatever OS you want.

When you install a guest OS in the VM, you are not obliged to follow what you specified in the settings.

You can change this setting with the Set-VM cmdlet.

Something like this

Get-Content -Path .\names.txt | %{

  Get-VM -Name $_ | Set-VM -GuestId windows9_64Guest -Confirm:$false

}

[dharmendrarhce]

Thanks for response , to perform this command , i need to make sure , VM is power  off state  and having updated tool and hardware version ?

[LucD]

The VM should be in the powered off state, the VMware Tools and HW version are not a hard requirement.

[dharmendrarhce]

but , when i am trying to do that manually ... i am unable to see the window 10 listed in the version tab ?/

Will that command work on that situation as well ?

[LucD]

Which vSphere version are you using?

Support for Windows 10 was introduced in ESXi 5.5U3 and ESXi 6.0 and above.

In earlier versions you will have to create the VM for example as a Windows 8 machine.

Remember, this setting has little or no impact on the actual guest OS you install in the VM.

[dharmendrarhce]

We are using 6.5...

[LucD]

Then you should have the Windows 10 option.

See also the Guest OS Compatibility Guide (p 110).

But could it be that your HW version is that far behind? Which HW version do you have on those VMs?

[dharmendrarhce]

Yea ... We are having hrdware version 8 in some of VM

[LucD]

That's probably it, you should have at least HW v11 to get Windows 10.

You should be able to do that in one statement.

Get-Content -Path .\names.txt | %{

  Get-VM -Name $_ | Set-VM -GuestId windows9_64Guest -Version v11 -Confirm:$false

}

[dharmendrarhce]

ok. Great so it will change the hardware version along with OS version ?

[LucD]

Correct

[dharmendrarhce]

Tanks much .. WIll update you once i tested in my env