Server 2016 Core + PsDscRunAsCredential

DSC
1

We’ve been running our DSC on Windows 2012 R2 GUI and Core for a while and it’s been working perfectly. Recently we decided to move to 2016 GUI and Core. Running a consistency check works perfectly fine on Windows 2016 GUI (1607 + May CU), however when running a consistency check on Windows 2016 Core, every resource using PsDscRunAsCredential gets an “The filename or extension is too long” error.

I thought maybe it was a certificate issue but I double checked our certificate settings against https://msdn.microsoft.com/en-us/powershell/dsc/securemof and they have the correct settings.

VERBOSE: [S16AUMDC01TST01]: LCM:  [ Start  Resource ]  [[cScheduleTask]PowershellHelpUpdateScheduledTask]
VERBOSE: [S16AUMDC01TST01]: LCM:  [ Start  Test     ]  [[cScheduleTask]PowershellHelpUpdateScheduledTask]
VERBOSE: [S16AUMDC01TST01]: LCM:  [ End    Test     ]  [[cScheduleTask]PowershellHelpUpdateScheduledTask]  in 0.0470 seconds.
Invoke-CimMethod : The filename or extension is too long
At C:\Program Files\WindowsPowerShell\Modules\BVISMServerEnforcer\Functions\Public\Invoke-BVEnforcerCheck.ps1:20 char:5
+     Invoke-CimMethod -CimSession $ServerName -Name PerformRequiredCon ...
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : AuthenticationError: (:) [Invoke-CimMethod], CimException
    + FullyQualifiedErrorId : Win32Error:206,Microsoft.Management.Infrastructure.CimCmdlets.InvokeCimMethodCommand
    + PSComputerName        : s16aumdc01tst01

Anyone have any ideas?

2

I’ve pinged a few folks on this.

3

Thank you very much Don. I’ve discovered the issue exists on both Core and GUI. I’ve consolidated all the information on this post here https://powershell.org/forums/topic/server-2016-the-filename-or-extension-is-too-long/.

If you can close this post that would be great.