Today, in the post I will show you how to migrate SCCM operating system from Windows Server 2008 R2 to Windows Server 2012 R2 in-place. I had some problems and that is what I will try to describe in more detail. You can do a in-place upgrade from:
- Windows Server 2012 R2 to Windows Server 2016
- Windows Server 2012 to Windows Server 2012 R2
- Windows Server 2008 R2 to Windows Server 2012 R2 (SCCM 1602 or higher)
You cannot go from Server 2008 R2 to Server 2016, Windows Server 2008 to Windows Server 2012 or Windows Server 2008 R2 to Windows Server 2012!
The key reason for this change is that most installations of SCCM 2012 R2 are based on Windows Server 2008 R2. And if the SCCM evolves, the operating system also has to evolve. Another possible approach would be to install a Windows Server 2012 R2 from scratch and do a restore of the SCCM and database (keeping the same name and IP). I think the first approach is simpler and I will describe it.
