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
Install CU2
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)
Running the ConfigMgr 2012 R2 SP1 (SP2) upgrade.
Post Upgrade
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.