SCCM 2012 R2 Upgrade Path for Multisite Hierarchy

Requirements:

• Download SCCM 2012 R2 RTM bits

• Download Windows 8.1 ADK

Steps:

• Start upgrade from the top in hierarchy, first CAS then Primary and then Secondary Servers.

• Take backup of CAS as well as Primary servers. Ensure that you’ve a good copy (I would suggest to have 2 copies just in case) of backup.

• In CAS server, Uninstall Windows 8 ADK from Programs and Features

• Install Windows 8.1 ADK along with three features (Deployment Tools, WinPE and USMT)

• Disable the site maintenance tasks “Backup Site Server”, “Delete Aged Client Operations” and “Delete Aged Data Discovery” on SCCM ConfigMgr sites.

• No need to update remote Site System servers (remote DPs, MPs, SUPs). However, ensure that prerequisite for installed site system roles.

• Open the SCCM 2012 R2 bits and run the Splash.hta

• On the Getting Started page, make sure that Upgrade this Configuration Manager site is selected.

• Follow the GUI and finish the installation.

• Once installation is successful in CAS, then follow the same process for Primary server.