Get-WmiObject fails as non-Administrator
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mercoledì 27 giugno 2012 17:53
I'm using a variant of this script to test the KVP functionality on Hyper-V:
http://blogs.msdn.com/b/virtual_pc_guy/archive/2008/11/18/hyper-v-script-looking-at-kvp-guestintrinsicexchangeitems.aspxOn a Win2K8R2 server with a user (which has Administrator privileges) the script fails to run this command:
# Get the virtual machine object $query = "Select * From Msvm_ComputerSystem Where ElementName='" + $VMName + "'" $Vm = gwmi -namespace root\virtualization -query $query -computername $HyperVServer
The error is like this:
PS C:\Users\Public\Downloads> .\hyper-v.kvptest.ps1
Specify the Hyper-V Server to use (enter '.' for the local computer): .
Specify the name of the virtual machine: Factory
Get-WmiObject : Invalid object path
At C:\Users\Public\Downloads\hyper-v.kvptest.ps1:45 char:12
+ $Kvp = gwmi <<<< -namespace root\virtualization -query $query -computername $HyperVServer
+ CategoryInfo : InvalidOperation: (:) [Get-WmiObject], ManagementException
+ FullyQualifiedErrorId : GetWMIManagementException,Microsoft.PowerShell.Commands.GetWmiObjectCommand
Guest KVP information for Factory
You cannot call a method on a null-valued expression.
At C:\Users\Public\Downloads\hyper-v.kvptest.ps1:17 char:48
+ foreach ($CimProperty in $CimXml.SelectNodes <<<< ("/INSTANCE/PROPERTY[@NAME='Name']"))
+ CategoryInfo : InvalidOperation: (SelectNodes:String) [], RuntimeException
+ FullyQualifiedErrorId : InvokeMethodOnNull
You cannot call a method on a null-valued expression.
At C:\Users\Public\Downloads\hyper-v.kvptest.ps1:22 char:48
+ foreach ($CimProperty in $CimXml.SelectNodes <<<< ("/INSTANCE/PROPERTY[@NAME='Data']"))
+ CategoryInfo : InvalidOperation: (SelectNodes:String) [], RuntimeException
+ FullyQualifiedErrorId : InvokeMethodOnNull
System.ObjectAny idea why this script needs to run with Admin permissions, even if the user is an Administrator?
Is there a way to let it run without Administrator permissions?
Thanks.
Tutte le risposte
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mercoledì 27 giugno 2012 19:29It has been my experience that this is an issue with UAC. If you right-click the PowerShell and "Run as Administrator" (as the non-administrator user), and then run the script, do you achieve success?
G. Samuel Hays
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giovedì 28 giugno 2012 09:12
These errors happen also when it runs on Windows Server 2012 as Administrator.
Looks like the whole script needs an update to cope.
The error is like this:
Get-WmiObject : Invalid object path
At C:\Users\Public\Downloads\hyper-v.kvptest.ps1:45 char:12
+ $Kvp = gwmi <<<< -namespace root\virtualization -query $query -computername $HyperVServer
+ CategoryInfo : InvalidOperation: (:) [Get-WmiObject], ManagementException
+ FullyQualifiedErrorId : GetWMIManagementException,Microsoft.PowerShell.Commands.GetWmiObjectCommandThis error is specific to the non-Administrator account.
Guest KVP information for Factory
You cannot call a method on a null-valued expression.
At C:\Users\Public\Downloads\hyper-v.kvptest.ps1:17 char:48
+ foreach ($CimProperty in $CimXml.SelectNodes <<<< ("/INSTANCE/PROPERTY[@NAME='Name']"))
+ CategoryInfo : InvalidOperation: (SelectNodes:String) [], RuntimeException
+ FullyQualifiedErrorId : InvokeMethodOnNull
You cannot call a method on a null-valued expression.
At C:\Users\Public\Downloads\hyper-v.kvptest.ps1:22 char:48
+ foreach ($CimProperty in $CimXml.SelectNodes <<<< ("/INSTANCE/PROPERTY[@NAME='Data']"))
+ CategoryInfo : InvalidOperation: (SelectNodes:String) [], RuntimeException
+ FullyQualifiedErrorId : InvokeMethodOnNull
System.Object- Modificato olaf_aepfle.de giovedì 28 giugno 2012 09:13
- Contrassegnato come risposta olaf_aepfle.de giovedì 28 giugno 2012 09:13
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