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Exchange 2007 to 2013

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  • Exchange 2007 to 2013

    I have exchange 2007 installed and i'm trying to install exchange 2013. However the install has thrown an error about 2003 still being install in AD. The old 2003 server is offline (and has been for ages) so does anyone know how i remove legacy exchange 2003 config from AD? All the articles i've read so far assume that 2003 exchange is still up and running and to do specific tasks from there to remove exch 2003 from the domain...

    Any help appreciated!
    Cheers.
    Dan

  • #2
    Re: Exchange 2007 to 2013

    Currently there is no migration path from Exchange 2007 to 2013.
    You need to wait until 2013 CU1 is released and install that. You also need to have Exchange 2007 SP3 rollup 10 installed for full compatability.

    If the old server is offline, then you need to do as much as you can. One option would be to rebuild the server using the recovery options. At the very least, if you can get ESM instaleld on to a suitable machine then you can complete the migration and remove the Exchange 2003 references from the domain.

    Simon.
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    Simon Butler
    Exchange MVP

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    Sembee is a registered trademark, used here with permission.

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    • #3
      Re: Exchange 2007 to 2013

      Sembee is correct, there is no direct route from 2003 to 2013.

      You have a couple options at this point. One is moving from Exchange 2003 to 2010, and then from 2010 to 2013 (can't skip straight to '13).

      There's a good MS TechNet article on moving to 2010 , and then you can migrate to 2013.


      Another option is using a third party migration tool, which is much simpler and allows you to skip the hassle of Exchange 2010. I recommend using MigrationWiz.

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      • #4
        Re: Exchange 2007 to 2013

        Thanks for the info, I thought i might have to reinstall exchange 2003 and then properly remove from AD. I'll check out Migration Wiz too, but that doesn't help as I've still would need to install exchange 2013 which i can't due to old exch 2003 references in AD...

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        • #5
          Re: Exchange 2007 to 2013

          Have you read the MSFT TechNet article titled "How To Remove the Last Legacy Exchange Server From Organization"? (sorry, can't link directly)

          It's important to not just turn off the legacy exchange server and actually go through and uninstall the old Exchange.

          If I am understanding your situation correctly, it may be quite a process trying to go through and delete everything retroactively.

          Perhaps use ADSI edit to remove everything except the admin group?

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          • #6
            Re: Exchange 2007 to 2013

            I think this is the TechNet article David refers to: http://technet.microsoft.com/en-gb/l...xchg.141).aspx

            The preferred method is never, ever to go to ADSIEDIT, but try to do a repair install -- this assumes the computer account for the old Exchange server is still available -- and clear removal of an old Exchange server. This guarantees a cleanup while any hacking of registry or AD doesn't!
            Tom Jones
            MCT, MCSE (2000:Security & 2003), MCSA:Security & Messaging, MCDBA, MCDST, MCITP(EA, EMA, SA, EDA, ES, CS), MCTS, MCP, Sec+
            PhD, MSc, FIAP, MIITT
            IT Trainer / Consultant
            Ossian Ltd
            Scotland

            ** Remember to give credit where credit is due and leave reputation points where appropriate **

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            • #7
              Re: Exchange 2007 to 2013

              Originally posted by Ossian View Post
              I think this is the TechNet article David refers to: http://technet.microsoft.com/en-gb/l...xchg.141).aspx

              The preferred method is never, ever to go to ADSIEDIT, but try to do a repair install -- this assumes the computer account for the old Exchange server is still available -- and clear removal of an old Exchange server. This guarantees a cleanup while any hacking of registry or AD doesn't!
              Hi,
              I'm about to do the same thing as well, so I wonder what could go wrong if somehow I accidentally deleted the wrong key ?

              Comment


              • #8
                Re: Exchange 2007 to 2013

                Get-RoutingGroupConnector to see if the Ex03 to Ex07 connector still exists.

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