Preparing an Active Directory infrastructure for upgrade to Windows Server 2008

  • To prepare the forest schema for Windows Server 2008

1. Log on to the schema master as a member of the Enterprise Admins, Schema Admins, and Domain Admins groups.

2. Insert the Windows Server 2008 DVD into the CD or DVD drive. Copy the content of the \sources\adprep folder to an Adprep folder on the schema master.

3. Open a command prompt, and then change directories to the Adprep folder.

4. At the command prompt, type the following, and then press ENTER:
adprep /forestprep

5. If you plan to install a read-only domain controller (RODC) in any domain in the forest, type the following, and then press ENTER:
adprep /rodcprep



  • Prepare a Windows 2000 or Windows Server 2003 domain for a domain controller that runs Windows Server 2008

After you prepare the forest, you need to prepare any domain for which you plan to install a domain controller that runs Windows Server 2008.

To prepare a Windows 2000 or Windows Server 2003 domain for Windows Server 2008

1. Identify the domain infrastructure operations master role holder as follows:

In the Active Directory Users and Computers snap-in, right-click the domain object, click Operations Masters, and then click Infrastructure.

2. Log on to the infrastructure master as a member of the Domain Admins group.

3. Insert the Windows Server 2008 DVD into the CD or DVD drive. Copy the content of the \sources\adprep folder to an Adprep folder on the infrastructure master.

4. Open a command prompt, and then change directories to the Adprep folder.

5. Type the following command, and then press ENTER:

adprep /domainprep /gpprep

6. Allow the operation to complete, and then allow the changes to replicate throughout the forest before you install a domain controller that runs Windows Server 2008.

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