2000 to 2008 Migration question

Discussion in 'Server Migration' started by Raul, Feb 5, 2010.

  1. Raul

    Raul Guest


    We are in the process of upgrading our windows 2000 (32 bit) domain to
    windows 2008 R2 (64 bit). We are ready for the process but I have few
    questions regarding running "prep".

    Our domain consists of 10 domains. One Parent and 9 child domains and each
    domain has 2 windows 2000 DC's. I am starting the upgrade with the parent

    On the Parent domain I am to run processes before introducing win 2008 r2

    adprep32 /forestprep (schema master only)
    adprep32 /domainprep
    adprep32 /domainprep /gpprep
    adprep32 /rodcprep (infrastructure master only)

    Should I run any of the processes above against the second DC?

    Also, When it's time to upgrade child domains I must run:

    adprep32 /domainprep
    adprep32 /domainprep /gpprep

    Both against the PDC. Should any of these be run against the the second DC?

    Thank you in advance.
    Raul, Feb 5, 2010
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  2. Hello Raul,

    /forestprep on the schema master, no need to run it on the second DC also

    /domainprep /gpprep in each domain with Windows server 2000 DCs. /gpprep
    to enable RSOP planning mode

    /rodcprep once in the forest, the IM is contacted automatically and replicates
    to all other IM in the forest

    Before starting the upgrade run support tools dcdiag /v, netdiag and repadmin
    /showreps to check for errors. Therefore install the support\tools\suptools.msi
    from the 2000 installation disk.

    Keep in mind that you have to give time for replication of all changes throughout
    all domains before doing the next steps, this belongs to your AD sites and
    services replication schedule and also the bandwith between the sites in
    the forest .

    Best regards

    Meinolf Weber
    Meinolf Weber [MVP-DS], Feb 6, 2010
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  3. Raul

    Raul Guest


    Raul, Feb 6, 2010
  4. Raul

    Venkat Guest

    Hello Rahul,

    Apart from what Meinolf said, am sure you know that a 32-bit OS cannot be
    upgraded to a 64-bit OS. You will need to introduce new servers with W2k8 R2
    OS as DCs.

    Venkat, Feb 16, 2010
  5. Hello Venkat,

    Good point, i should have mentioned it. :)

    Best regards

    Meinolf Weber
    Meinolf Weber [MVP-DS], Feb 16, 2010
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