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SCCM 2012 R2 CU4 Requires a Reboot to Complete the Installation

I never missed to install any of the Cumulative Updates of SCCM 2012 R2. It’s a routine that I install all the SCCM 2012 R2 CUs at least in 4-5 different environments. For me it’s very normal that to restart the server before starting the SCCM /ConfigMgr 2012 R2 CU  installation (whenever wizard prompts me to do so). But today, it was something different. During the ‘Prerequisite Check’, SCCM 2012 R2 CU4 didn’t ask me to restart the server. Download SCCM 2012 R2 CU4 from here (kb/3026739).

Entries of cm12-r2cu4-kb3026739-x64-enu.log file :-

<![LOG[    Starting task 'Verifying restart is not required.'.]LOG]!><time="21:46:40.913+330" date="02-07-2015" component="Update Setup" context="" type="0" thread="4380" file="">
<![LOG[Task 'Verifying restart is not required.' completed, state is 'passed']LOG]!><time="21:46:41.038+330" date="02-07-2015" component="Update Setup" context="" type="0" thread="4528" file="">
..
..
<![LOG[Installation tasks completed, with at least one task pending a reboot.]LOG]!><time="21:58:53.002+330" date="02-07-2015" component="Update Setup" context="" type="0" thread="4528" file="">
<![LOG[Update Setup has completed successfully.]LOG]!><time="21:58:53.017+330" date="02-07-2015" component="Update Setup" context="" type="0" thread="4528" file="">
<![LOG[Displaying wizard page: 'Installation Complete'.]LOG]!><time="22:00:25.676+330" date="02-07-2015" component="Update Setup" context="" type="0" thread="4528" file="">
<![LOG[To complete the installation, close this wizard and restart the computer.]LOG]!><time="22:00:25.692+330" date="02-07-2015" component="Update Setup" context="" type="0" thread="4528" file="">
<![LOG[COMPLETE PAGE: View release notes requested.]LOG]!><time="22:01:58.544+330" date="02-07-2015" component="Update Setup" context="" type="0" thread="4528" file="">

SCCM 2012 R2 CU4 -1

To my surprised, SCCM / ConfigMgr 2012 R2 CU4 asked for a reboot at the end of the installation wizard. The MSI log file (cm12-r2cu4-kb3026739-x64-enu.msi.log) provided some more details. The reason for the restart mentioned in SCCM ConfigMgr 2012 R2 CU4 MSI log file is “Reason for Restart: 1”. As per the MSI logging If this property is present with a value of 1, then the Installer will require a reboot because it overwrote an in-use file.

Entries of cm12-r2cu4-kb3026739-x64-enu.msi.log

MSI (s) (C4:08) [21:52:39:716]: Windows Installer installed the product. Product Name: Cumulative Update 4 for Configuration Manager R2 (KB3026739). Product Version: 5.0.7958.1501. Product Language: 0. Manufacturer: Microsoft Corporation. Installation success or error status: 0.
MSI (s) (C4:08) [21:52:39:756]: Value of RebootAction property is 
MSI (s) (C4:08) [21:52:39:790]: Windows Installer requires a system restart. Product Name: Cumulative Update 4 for Configuration Manager R2 (KB3026739). Product Version: 5.0.7958.1501. Product Language: 0. Manufacturer: Microsoft Corporation. Type of System Restart: 2. Reason for Restart: 1.
MSI (s) (C4:08) [21:52:39:822]: Product: Cumulative Update 4 for Configuration Manager R2 (KB3026739). Restart required. The installation or update for the product required a restart for all changes to take effect.  The restart was deferred to a later time.

So no need to worry, if at all you’re getting the restart for the first time after any of SCCM 2012 Cumulative Update installations !!

About Author 

Anoop is Microsoft MVP and Veeam Vanguard ! He is a Solution Architect on enterprise client management with more than 13 years of experience (calculation done on the year 2014) in IT. He is Blogger, Speaker and Local User Group Community leader. His main focus is on Device Management technologies like SCCM 2012,Current Branch, Intune. He writes about the technologies like SCCM, SCOM, Windows 10, Azure AD, Microsoft Intune, RMS, Hyper-V etc...

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Posted in: ConfigMgr (SCCM), Configmgr2012

8 Comments

  1. Upgraded to R2 CU4 last week, and it hosed my MP, having to uninstall/reinstall my MP 🙁

  2. VR says:

    I tested the installation of CU4 in my lab, it didn’t prompt me for reboot.

    • Anoop says:

      I’ve updated 4 of my servers and only 1 prompted for reboot. So we can’t expect reboot every time after installing SCCM 2012 R2 CU4 on your SCCM site Servers.

  3. It should be recommended to update all servers that receive a CU or SP update.

    • Anoop says:

      Was that a question or statement. If question then as per my experience I would update all the site servers and site DB. All the site systems will get automatically updated to SCCM 2012 R2 CU4 once you install this on site server.

      Regards
      Anoop

  4. Domagoj says:

    Hi,

    was SCCM console opened during CU installation?

    C/P from: http://support.microsoft.com/kb/3026739

    Restart information
    You do not have to restart the computer after you apply this update.

    Note We recommend that you close the Configuration Manager Administrator Console and any associated applications such as the Remote Control Viewer or Status Message viewer before you install this update.

    You may be prompted to restart the computer that the Administrator Console update is being applied to if the Remote Control Viewer (CmRCViewer.exe) is being used during the update process.

    You can avoid restarting by closing the Remote Control Viewer before you install the update, or by adding the REBOOT=ReallySuppress parameter to the update installation properties. Be aware that this parameter is automatically added to packages that are created by the Cumulative Update installation.

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