Sunday, May 10, 2009

Installing Windows 2008 R2 into existing Domain AdPrep /ForestPrep

Goal: Install first windows 2008 R2 Domain controller into existing 2008 Forest/Domain.

Problem: Receiving fallowing error, upon running DCpromo “To install a domain controller into this Active directory forest using “adprep /forestprep”.

The Adrep utility is available on the windows 2008 R2 installation media in the \support\adprep folder

Solution:

You need to log into one of your existing domain controller (Infrastructure Master) and copy the folder mentioned in the above error to let’s say C drive.

To see the FSMO roles, simply go to command line and run

  • netdom query FSMO

image

So you are going to be running below command from your Infrastructure Master, not the new R2 DC you are trying to bring up.

Summarize task

  • Log in DC ( Infrastructure Master)
  • Copy support\adprep folder into C drive of your existing DC
  • Open command line
  • Run AdPrep32 /ForestPrep (I ran Adprep32 because my existing DC is 32 Bit)
    Wait ForestPrep to finish
  • Run AdPrep32 /DomainPrep (I ran Adprep32 because my existing DC is 32 Bit)
  • You are done now go back to Windows 2008 R2 you wish to DCpromo
  • Run DCpromo and fallow the wizard

ADprep_001

ADprep_002

ADprep_003

ADprep_004

ADprep_005

ADprep_006

ADprep_007

ADprep_008

ADprep_009

Adprep TechNet

image

Oz Casey Dedeal

MVP (Exchange)
MCITP (EMA), MCITP (SA)
MCSE 2003, M+, S+, MCDST
Security+, Project +, Server +

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2 comments:

Anonymous said...

Good post, adprep moved to \sources\adprep in 2008 R2!

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