vCenter 5.1 Single Sign On error during installation

Today vSphere 5.1 is released. I did an upgrade of my existing vSphere 5 vCenter server. During the installation of the vCenter Single Sign On (SSO) software the following warning occurred:

Error 29115: Cannot authenticate to DB.


After this error the installation stops and the rollback begins. To solve this make sure the server authentication checkbox is set to SQL Server and Windows Authentication mode on the SQL server.


Thanks to Gabrie van Zanten and Maish Saidel-Keesing for helping me out!

Upgrade Windows Server 2012 Release Candidate (RC) to RTM

Now Windows Server 2012 is release I tried to upgrade my lab environment from Microsoft Windows Server 2012 RC 8400 to Windows 2012 RTM. It is not officially supported to upgrade from Windows Server 2012 RC to Windows Server 2012 RTM by Microsoft.

I did the following steps to upgrade:

  • Downloaded  the Windows Server 2012 ISO
  • Mount or extract the ISO
  • Executed setup.exe
  • After several screens it is possible to choose for “Upgrade: Install Windows and keep files, settings and applications” option


  • Now the he following error appeared:

The upgrade cannot continue. The upgrade you needs to be running the following Windows Server 2012 build number of higher: 8508.0


  • use the work around by editing  the file “cversion.ini”  found in the “sources” folder. Change the “MinServer=8508.0”  line in “MinServer=8400.0


  • Start the setup process  again. Now repeat the above steps.  The installation checks the compatibility. In my case the following errors are displayed:


  • To solve the above errors I did the following things:

– Uninstall the Intel Wired PROset for Windows software

– Because the Active Directory (AD) role is installed, I needed to upgrade the AD schema by using the ADPREP /FORESTPREP and ADPREP / DOMAINPREP commands

– Reboot the system

  • Again the setup process must be started and the upgrades completes. After the upgrade the Windows Server 2012 version is Build 9200 (RTM).


VMware Fusion 5 and Microsoft Office 2013 screen refresh problem

When using  Microsoft Office 2013 on Windows 7 or Windows 8 in VMware Fusion 5 the screen is not properly refreshed and leaving black regions.


This is because VMware Fusion 5 offers DirectX9 for Windows 7 and Windows 8, but Microsoft Office 2013 requires DirectX10. This is a know issue in VMware Fusion 5.

There are two work arounds available:

  • Disable 3D acceleration in the VM settings
  • Disable hardware acceleration in the Microsoft Office 2013 application


Disable 3D acceleration in the VM settings

  • Shut Down the VM
  • Go to Settings and click on  Display
  • Turn the Accelerate 3D Graphics setting to OFF


  • Start the VM

Disable hardware acceleration in the Microsoft Office 2013 application

  • Open the Office application you want to turn disable the hardware acceleration
  • Click on Settings – Advanced – Disable hardware acceleration

More information can be found here.