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Prerequisite Check Failed - Existing Configuration Manager RRS feed

  • Question

  • upgrading 2007 R3 to 2012 and I ran the Prerequisite checker and I'm getting an error:

    A site server or site system role is already installed on the computer selected for secondary site installation.  Remove the site or site system role from the computer, or select another computer for secondary site installation.

    Any ideas?

    Tuesday, November 6, 2012 9:46 PM

Answers

All replies

  • Upgrade from CM2007 to CM2012 is not supported. Only Side-by-side migration.

    And you cant migrate a secondary site in SCCM 2007 to a secondary site in SCCM 2012.
    If you remove the secondary site, you can reuse the server as a DP in SCCM 2012.


    Ronni Pedersen | Microsoft MVP - ConfigMgr | Blogs: http://www.ronnipedersen.com/ and SCUG.dk/ | Twitter @ronnipedersen

    Tuesday, November 6, 2012 9:58 PM
  • Can I do an install on the same server then migrate? 
    Wednesday, November 7, 2012 1:45 AM
  • Yes. You can use the samen server as a "Shared Distribution Point" during the migration.
    Then clients from both the old CM07 Site and the new CM12 Site, can get content from the same Distribution Point.

    More info:
    http://technet.microsoft.com/en-us/library/gg712275.aspx#About_Shared_DPs_in_Migration


    Ronni Pedersen | Microsoft MVP - ConfigMgr | Blogs: http://www.ronnipedersen.com/ and SCUG.dk/ | Twitter @ronnipedersen

    • Marked as answer by John Marcum Wednesday, November 7, 2012 12:52 PM
    Wednesday, November 7, 2012 6:20 AM
  • To add a bit to what Ronni said... You have two options when dealing with CM07 secondary sites during migration.

    1. Uninstall the secondary site then reinstall it as a CM12 site.

    2. Migrate the secondary site to a CM12 distribution point.

    Most people seem to be going with option 2 because it's the quickest and easiest. Doing that will allow you to continue using the DP during the migration and doesn't require re-sending the content acrosss your WAN.


    John Marcum | http://myitforum.com/cs2/blogs/jmarcum/|

    Wednesday, November 7, 2012 12:52 PM
  • But I don't have a secondary site.  I only have a primary.  That is why it's confusing to me.

    Wednesday, November 7, 2012 6:29 PM
  • Open SQL management studio and run "select * from sysreslist" and see if a secondary site is listed. It might be a remainder from a no longer existing site.

    Torsten Meringer | http://www.mssccmfaq.de

    Wednesday, November 7, 2012 6:42 PM
  • So you are running the CM12 installer on a new server and it's telling you that a server is already installed on that server? Is this the first CM12 server in your environment or are you adding one? Has this server been a CM07 server at any time?


    John Marcum | http://myitforum.com/cs2/blogs/jmarcum/|

    Wednesday, November 7, 2012 7:17 PM
  • This server currently has CM07 on it.  Can I not install CM12 and migrate the data over?

    Torsten, It's only showing one site.

    Wednesday, November 7, 2012 9:21 PM
  • No. As I wrote in the first answer, in-plase upgrade from CM2007 to CM2012 is not supported.

    You need to install CM12 on a new/other server, and then migrate...


    Ronni Pedersen | Microsoft MVP - ConfigMgr | Blogs: http://www.ronnipedersen.com/ and SCUG.dk/ | Twitter @ronnipedersen

    Wednesday, November 7, 2012 9:32 PM
  • your killing me Ronni.  lol I don't really have that option.  Can I export the data and blow it away and install?
    Wednesday, November 7, 2012 9:39 PM
  • Well.... Then fdisk is the Tool you're looking for :)

    I dont know any great tools or solutions that will help you to solve this specific problem, but if you have a "simple" setup, you could just backup your source files, document your settings, reinstall the site server and then re-create/import your content (packages etc).


    Ronni Pedersen | Microsoft MVP - ConfigMgr | Blogs: http://www.ronnipedersen.com/ and SCUG.dk/ | Twitter @ronnipedersen

    Wednesday, November 7, 2012 9:47 PM