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Migrating 2003 AD to 2008

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  • Migrating 2003 AD to 2008

    We are having trouble with DCPROMO of the 2k8 server. It keeps telling to run the adprep /forestprep, which we already have run on the 2K3 Server. Please help.

  • #2
    Re: Migrating 2003 AD to 2008

    makie sure you've done
    adprep /forestprep
    adprep /domainprep
    adprep /gpprep

    Also, make sure you used the appropriate version off the 2008 CD.. if you do adprep with a 2008 disk but you're actually using 2008R2, i beleive it has some differences.

    did you run adprep on the relevant masters ?
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    • #3
      Re: Migrating 2003 AD to 2008

      Has replication completed?

      And yes, R2 is a different schema version to 2008
      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

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


      • #4
        Re: Migrating 2003 AD to 2008

        I concur with advice already given. If you are running ADPREP from the Windows 2008 R2 ISO, should you be adding Windows 2008 R2 DCs, you will need to run ADPREP if the 2003 DC(s) are 64 bit and ADPREP32 with appropriate switches if 32 bit. They are both in the same folder.