When working with the Server Core installation of Windows Server, most GUI applications does not work. This is expected for the most GUI applications, since dependencies for those GUI`s is not present on Server Core. One such example is Software Center, which is part of the System Center 2012 Configuration Manager client.
When trying to launch Software Center (C:\Windows\CCM\SCClient.exe) on Server Core you might get an error such as “SCClient has stopped working”:
For the most part you won`t have the need to launch the Software Center on a Server Core installation of Windows Server. I recently worked with software updates on Windows Server 2008 R2 Hyper-V with Server Core. Although the WSUS integration in System Center Virtual Machine Manager might be a better option for working with Windows Updates on Hyper-V, System Center Configuration Manager 2012 was used in this particular scenario. As Hyper-V servers need to be in maintenance mode before maintenance work such as Windows patching, triggering the installation of new software updates in the SCCM Client needed to be performed manually in the scenario I worked with.
The first thing I tried was the UDA.CCMUpdatesDeployment COM object, which Boe Prox has written an excellent article about. However, this COM object is part of the System Center Configuration Manager 2007 client, and not available in the System Center Configuration Manager 2012 client.
It turns out there is a new WMI namespace in System Center Configuration Manager 2012, the ROOT\ccm\ClientSDK, which provides similar capabilities. If you have not worked a lot with WMI before, exploring this namespace might be a challenge. There is a project on CodePlex to make this a bit easier, the Client Center for Configuration Manager project:
This is a WPF GUI application for working with the ROOT\ccm\ClientSDK remotely, using WinRM. A nice feature of the GUI, is that the underlying PowerShell commands is shown at the bottom:
When clicking on “Missing Updates”, the PowerShell command actually running on the remote computer is Get-WmiObject -Query “SELECT * FROM CCM_SoftwareUpdate” -Namespace “ROOT\ccm\ClientSDK”.
When you click Install all, you will see that the InstallUpdates method is used to trigger installation of missing updates:
Based on this information, we can create PowerShell functions to make it easier to work with these commands. This is a few basic examples:
These functions can be used on computers with the System Center Configuration Manager 2012 client installed:
Ideas for further work:
- Use the CIM cmdlets available in PowerShell 3.0 and above to create functions that will work with either DCOM (legacy WMI) or WSMan (PowerShell Remoting). You can find excellent examples in some of the 2013 Scripting Games entries. One example is the Get-SystemInventory function from Event 2.
- Use PowerShell or the Configuration Manager Trace Log Tool to track installation status from SCCM log files such as C:\Windows\CCM\Logs\WUAHandler.log:
- Use the Get-PendingReboot function to track whether a reboot is required after installing updates: