In this post you learn to upgrade an existing ConfigMgr 2012 R2 SP1 environment to Cumulative Update 2 (CU2).
Upgrade process overview
In this guide you upgrade a single primary site server named CM01, currently running ConfigMgr 2012 R2 SP1. Here is the high-level overview.
- Do an extra backup of your ConfigMgr 2012 R2 SP1 server
- Download CU2, reboot the site server, and install CU2
- Once upgrade is verified, update your boot images, and possible enable automatic client upgrade
Backup your ConfigMgr 2012 R2 SP1 server
Before beginning the upgrade, make sure you have a backup of your ConfigMgr 2012 R2 SP1 server. E.g. make sure you have SQL Backup of your site server database.
Note: The best guide for ConfigMgr backup configuration is of course Steve Thompson’s excellent post: SQL Server Backup Recommendations for Configuration Manager
First, you obviously need to download CU2 for ConfigMgr 2012 R2 SP1 which you find here: http://support.microsoft.com/en-us/kb/3100144
Second, restart the site server to make sure there are no pending reboots.
Then, run the CM12_SP2R2SP1CU2-KB3100144-X64-ENU.exe file, and walk through the setup wizard. After completion you find the CU2 setup log file in C:WindowsTemp.
Note: If the CU2 setup cannot stop the WMI service, happens every once in a while, simply stop the service manually via Services in windows (or PowerShell, or SC.exe)
After the upgrade finishes, check the log file in C:\Windows\Temp, and make sure to update your boot images (Update DP) to get the updated CU2 binaries into the boot image. A SP1 or SP1 CU1 boot image will still be able to talk to the CU2 site, but it just won’t contain any of the OSD fixes from CU2 in it.