Attention: DSC V2 Pull Server on 2012 R2 Core supported again

For a while now a DSC V2 Pull Server hasn’t been functioning properly on Server 2012 R2 Core. The underlying cause is that the xPSDesiredStateConfiguration resource module has been configuring the DSC Service with an OLEDB provider (Jet) which is actually deprecated starting with 2016 and doesn’t work with Server 2012 R2 Core.

The error messages you encounter if this bug has hit you look like this (see pull server event log):

Registration of Dsc Agent with AgentID = f7fb8bbc-f48a-435b-8952-e4a534f4d1b0 failed. The underlying error is : The ‘Microsoft.Jet.OLEDB.4.0’ provider is not registered on the local machine.

Since module version 3.8.0.0 the db provider has been changed to ESENT again which removes the incompatibility and makes the Pull Server work on 2012 R2 Core again.

This means that all V2 Pull Servers that were set up with the xDscWebService resource on Server 2012 R2 prior to 3.8.0.0 are configured with OLEDB so consider redeploying the Server entirely.

The file C:\inetpub\PSDSCPullServer\web.config should contain this section…:

<appSettings>
    <add key="MaxConcurrentRequests" value="10000" />
    <add key="MaxRequestsPerTimeslot" value="10000" />
    <add key="TimeslotSize" value="1" />
    <add key="dbprovider" value="ESENT" />
    <add key="dbconnectionstr" value="C:\Program Files\WindowsPowerShell\DscService\Devices.edb" />
    <add key="ConfigurationPath" value="C:\Program Files\WindowsPowerShell\DscService\Configuration" />
    <add key="ModulePath" value="C:\Program Files\WindowsPowerShell\DscService\Modules" />
    <add key="RegistrationKeyPath" value="C:\Program Files\WindowsPowerShell\DscService" />
  </appSettings>

…and upon registration of a Pull server client via LCM ReportServerWeb resource the edb gets created (indicators for proper configuration in red):

PS H:\> ls "C:\Program Files\WindowsPowerShell\DscService"


    Direcory: C:\Program Files\WindowsPowerShell\DscService


Mode                LastWriteTime         Length Name
----                -------------         ------ ----
d---s-       17.03.2016     16:49                Configuration
d---s-       17.03.2016     16:49                Modules
-a----       21.03.2016     18:33        1056768 Devices.edb
-a----       13.01.2016     04:59        1310720 Devices.mdb
-a----       21.03.2016     18:33           8192 edb.chk
-a----       21.03.2016     18:33         131072 edb.log
-a----       21.03.2016     18:33         131072 edb00001.log
-a----       21.03.2016     18:33         131072 edbres00001.jrs
-a----       21.03.2016     18:33         131072 edbres00002.jrs
-a----       21.03.2016     18:33         131072 edbtmp.log
-a----       21.03.2016     17:26             39 RegistrationKeys.txt
             21.03.2016     18:33        1056768 tmp.edb

Just a heads-up: Don’t use the sample scripts from the xPSDesiredStateConfiguration module as they are outdated (time of this writing – 22.03.16). Please have a look for the official DSC documentation at https://msdn.microsoft.com/en-us/powershell/dsc/pullserver for Pull Server configuration examples.

 

 

 

 

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WMF5 finally re-released

Microsoft have finally released the long-awaited fixed version of WMF5. I personally believe that it’s intolerable to let one’s users wait two months just for this simple fix.

Today, we have republished the Windows Management Framework (WMF) 5.0 RTM packages for Windows Server 2012 R2, Windows Server 2012, Windows 2008 R2 SP1, Windows 8.1, and Windows 7 SP1 to Microsoft Download Center. These packages replace previously released WMF 5.0 RTM packages and WMF 5.0 Production Preview packages.

Important Note: For systems running Windows 7 SP1 or Windows Server 2008 R2 SP1, you’ll need WMF 4.0 and .NET Framework 4.5 or higher installed to run WMF 5.0.

We want to extend our sincere thanks to the PowerShell Community for your continued patience and support while we were addressing thePSModulePath issue found in the previously released WMF 5.0 RTM packages.

To learn about the new features and improvements in WMF 5.0 RTM, please refer to (and contribute to) the WMF 5.0 release notes.

Please continue to provide feedback via our new UserVoice site.

Changes in the republished packages
  • The KB numbers of these packages (KB3134758, KB3134759, and KB3134760) are different than previously released WMF 5.0 RTM packages (KB3094174, KB3094175, and KB3094176).
  • These packages have fixes only for the PSModulePath issue compared to the previously released WMF 5.0 RTM packages.
Uninstall previously released WMF 5.0 RTM packages

You must uninstall previously released WMF 5.0 RTM (KB3094174, KB3094175, and KB3094176) packages.

Source: https://blogs.msdn.microsoft.com/powershell/2016/02/24/windows-management-framework-wmf-5-0-rtm-packages-has-been-republished/

WMF5 is to re-release at end of February

Updated 02/08/2016 – Thank you for your continued patience. We have fixed the offending PSModulePath issue and tested it thoroughly. We are working towards getting properly signed WMF 5.0 RTM builds. Now, we expect that around end of February you will be able to download the revised packages.

Source: https://blogs.msdn.microsoft.com/powershell/2015/12/23/windows-management-framework-wmf-5-0-currently-removed-from-download-center/