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W2K3 DC to W2K8 R2 DC Replacement

    Question

  • I have a W2K3 DC installed on a Dell 1950 server.  CCTVlab.local is the root forest domain.
    Domain name:  cctvlab.local
    Host:  cctvlabdc
    Netbios:  cctvlab
    IP: 192.168.1.1   DNS:  192.168.1.1

    I would like to install a brand new W2K8 R2 DC on a Dell 2950 server and transfer the user accounts to the new hardware.
    I would like to keep the root forest domain "cctvlab.local", ip address, dns ip, and host name the same.
    What is the best way to get this task done?

     

    Monday, September 20, 2010 8:24 PM

Answers

  • Here is a guide on the steps.

    http://blogs.dirteam.com/blogs/jorge/archive/2010/05/19/information-about-upgrading-to-windows-server-2008-r2-ad.aspx

    Quick overview.

    1. Run adprep /forestprep and adprep /domainprep
    2. Point new server to the existing DC for DNS in the TCP\IP properties
    3. Run dcdiag on existing DC to check for any errors
    4. Go through this link http://technet.microsoft.com/en-us/library/cc753720(WS.10).aspx
    5. Allow replication to take place then run dcdiag to check for errors.
    6. Point new DC to itself for DNS.
    7. Demote old server by running dcpromo
    8. Delete all DNS records for the old server name.
    9. Rename DC name http://www.petri.co.il/rename-windows-server-2008-domain-controllers.htm
    10. Change IP address to old Server IP. http://technet.microsoft.com/en-us/library/cc794931(WS.10).aspx
    11. Run dcdiag /fix
    Monday, September 20, 2010 8:37 PM
  • ??/

    • Marked as answer by QuangDinh Wednesday, September 29, 2010 5:55 PM
    Wednesday, September 29, 2010 5:55 PM
  • Thank all that responded to this post:
    Finally, I am able to migrate the W2K3 to W2k8 DC:

     

     

    Procedure:
    On the Dell 1950 W2K3 DC:
    >Log on as administrator
    >Go to Active Directory Users / Computers
    >Add yourself to the following groups:  Domain admin, enterprise admin, and schema admin
    >Go to Administrative tools > Active Directory Domains and Trusts > Raise Domain Functional Level to "Windows 2003"
    >Reboot the W2K3 Domain
    >Login the domain controller with the schema admin right
    >Insert the Windows 2008 Enterprise X64 R2 disk and copy the "support folder" to the C: directory
    >Open command prompt > go to c:\support\adprep > type adprep32.exe /forestprep and follow the instructions on the screen.
    >Open command prompt > go to c:\support\adprep > type adprep32.exe /domainprep and follow the instructions on the screen.

    If you have W2K3 DC with 64 bits , use adprep.exe instead of adprep32.exe
      Note:  the adprep will update the schema to support w2K8 DC
    >Reboot the W2K3 DC


    On the Dell 2950 machine:
    >Right click My Computer > Manage > role and add "Active Directory Domain Services"
    >Run "dcpromo" and make the W2K8 machine child domain on an existing domain. Follow the wizard to complete the installation
    >Reboot the W2K8 DC when the wizard is completed


    On the Dell 1950 W2K DC:
    >Run DC promo and remove it from the existing
    >Shut down the W2K3DC


    On the Dell 2950 W2K8 DC:
    >Change the IP address back to 192.168.1.1
    >Open DNS console and delete the host file associate "cctvlabdc" with ip 192.168.1.1
    >Reboot the W2K8 DC

    • Marked as answer by QuangDinh Thursday, September 30, 2010 1:16 PM
    Wednesday, September 29, 2010 6:02 PM

All replies

  • Here is a guide on the steps.

    http://blogs.dirteam.com/blogs/jorge/archive/2010/05/19/information-about-upgrading-to-windows-server-2008-r2-ad.aspx

    Quick overview.

    1. Run adprep /forestprep and adprep /domainprep
    2. Point new server to the existing DC for DNS in the TCP\IP properties
    3. Run dcdiag on existing DC to check for any errors
    4. Go through this link http://technet.microsoft.com/en-us/library/cc753720(WS.10).aspx
    5. Allow replication to take place then run dcdiag to check for errors.
    6. Point new DC to itself for DNS.
    7. Demote old server by running dcpromo
    8. Delete all DNS records for the old server name.
    9. Rename DC name http://www.petri.co.il/rename-windows-server-2008-domain-controllers.htm
    10. Change IP address to old Server IP. http://technet.microsoft.com/en-us/library/cc794931(WS.10).aspx
    11. Run dcdiag /fix
    Monday, September 20, 2010 8:37 PM
  • If you are talking about an upgrade, you can add a new windows 2008 server and perform DCPROMO on that server.  Here are the high level steps:

    1.      Upgrade the schema using correct version of OS – Adprep

    a.      http://technet.microsoft.com/en-us/library/dd464018(WS.10).aspx

    b.      http://portal.sivarajan.com/2010/03/windows-2008-r2-adprep.html

    2.      Verify the schema version

    a.      http://portal.sivarajan.com/2010/03/active-directory-schema-version.html

    3.      Install a new Windows 2008 server and join it to the domain.  Perform DC promo and select “additional DC for an existing DC option”

    a.      http://msdn.microsoft.com/en-us/library/ee797379(CS.10).aspx

    4.      If you are planning to decommission the old servers, you need transfer FSMO, DHCP etc

    a.      http://support.microsoft.com/kb/324801

    b.      http://support.microsoft.com/kb/962355/en-us

    c.       http://blogs.technet.com/b/networking/archive/2008/06/27/steps-to-move-a-dhcp-database-from-a-windows-server-2003-or-2008-to-another-windows-server-2008-machine.aspx


    Santhosh Sivarajan | MCTS, MCSE (W2K3/W2K/NT4), MCSA (W2K3/W2K/MSG), CCNA, Network+ Houston, TX

    Blogs - http://blogs.sivarajan.com/
    Articles - http://www.sivarajan.com/publications.html
    Twitter: @santhosh_sivara - http://twitter.com/santhosh_sivara

    This posting is provided AS IS with no warranties, and confers no rights.
    Tuesday, September 21, 2010 2:10 AM
  • I tried the steps from Dariusg.  It did not update the user accounts from the W2K3 DC to the W2K8R2 X64 DC.
    Let me clarify what I am trying to do with my W2K3 X86 DC.

    OLD W2K3 X86 DC:

    OS:  W2K3 X86
    Function:  Root Domain Controller
    computer name:  cctvlabdc
    Netbios:  cctvlab
    domain name:  cctvlab.local
    FQDN:  cctvlabdc.cctvlab.local
    IP:  192.168.1.1
    DNS:  192.168.1.1
    Hardware:  Dell 1950
    User accounts: 50-100 users

    W2K3 X86 DC is the only Domain Controller in a LAN network.  My ultimate goal is to replace this Dell 1950 with Dell 2950 using W2K8 X64 R2.
    The new Dell 2950 will have the netbios name, domain  name, ip address, and retain the user accounts from the W2K3 X86 DC.

    Here is what I have done so far:

    1.  Install W2K8 X64 R2 on Dell 2950.
    2.  Assign IP 192.168.1.1 with DNS IP address the same.
    3.  Install Active Directory Service on the W2K8 R2 X64 machine
    4.  Promote it to domain controller using dcpromo.  The domain name is cctvlab.local.
    5.  Temp change IP of the W2K8R2 X64 to 192.168.1.2  with DNS 192.168.1.1

    I am stuck from here..

    I have try to use the ADMT3.2 to migrate the user account from W2K3 X86 to W2K8R2 DC.  The tool does not recognize the 2 machine since the w2k3 and w2k8 dc has the same domain name.

    Tuesday, September 21, 2010 4:00 PM
  • You did NOT follow my steps properly. Go through the steps I listed. I never said to install then assign IP address of the old server right a way. Please go through each step listed above DO NOT skip any steps.

    Give the DC an ip addres of 129.168.1.20 with DNS IP address of 192.168.1.1

    Tuesday, September 21, 2010 5:51 PM
  • Hello Dariusg,

    Here is what I done so far...

    On my W2K3 Ent X86 DC:
    1.  Raise functional level to Windows 2003 
    2.  Make my account a member of domain admin, schema admin, and enterprise admin 
    3.  I copied the adprep32.exe tool from the w2k8r2 x64 install disk.
    4.  Run the command adprep32.exe /forestprep .  Result updates successful
    5.  Run command adprep32.exe /domainprep. Result updates successful
    6.  Reboot my W2K3 DC

    On W2K8R2 X64 machine
    7.   Installed Domain service and reboot
    8.   Dcpromo and make it part of the cctvlab.local domain
    9.   Run command on w2k8 machine "repadmin /syncall", the command run successful.
    10.  DNS is pointing to the W2K3 machine

    Here is the current issue:  The W2K3 machine does not replicate user accounts to the w2k8 machine.  When I create a user account on the W2K8 machine and run the repadmin /syncall command, it does sync the user account to the w2k3 dc.  Please advice what to do next.

     

    WD

    Friday, September 24, 2010 11:44 AM
  • So, when you run readmin /syncall on the Windows 2003 server what results do you get? Post dcdiag.
    Friday, September 24, 2010 12:39 PM
  • I ran the command repadmin / syncall on the w2k8 machine not the w2k3 dc.
    This command is not available on the w2k3 dc.  I looked online that I may need to install the tools from the w2k3 disk for this command to be available.

    Friday, September 24, 2010 1:05 PM
  • Yes that is true you need to download the support tools

    Friday, September 24, 2010 4:52 PM
  • ??/

    • Marked as answer by QuangDinh Wednesday, September 29, 2010 5:55 PM
    Wednesday, September 29, 2010 5:55 PM
  • Thank all that responded to this post:
    Finally, I am able to migrate the W2K3 to W2k8 DC:

     

     

    Procedure:
    On the Dell 1950 W2K3 DC:
    >Log on as administrator
    >Go to Active Directory Users / Computers
    >Add yourself to the following groups:  Domain admin, enterprise admin, and schema admin
    >Go to Administrative tools > Active Directory Domains and Trusts > Raise Domain Functional Level to "Windows 2003"
    >Reboot the W2K3 Domain
    >Login the domain controller with the schema admin right
    >Insert the Windows 2008 Enterprise X64 R2 disk and copy the "support folder" to the C: directory
    >Open command prompt > go to c:\support\adprep > type adprep32.exe /forestprep and follow the instructions on the screen.
    >Open command prompt > go to c:\support\adprep > type adprep32.exe /domainprep and follow the instructions on the screen.

    If you have W2K3 DC with 64 bits , use adprep.exe instead of adprep32.exe
      Note:  the adprep will update the schema to support w2K8 DC
    >Reboot the W2K3 DC


    On the Dell 2950 machine:
    >Right click My Computer > Manage > role and add "Active Directory Domain Services"
    >Run "dcpromo" and make the W2K8 machine child domain on an existing domain. Follow the wizard to complete the installation
    >Reboot the W2K8 DC when the wizard is completed


    On the Dell 1950 W2K DC:
    >Run DC promo and remove it from the existing
    >Shut down the W2K3DC


    On the Dell 2950 W2K8 DC:
    >Change the IP address back to 192.168.1.1
    >Open DNS console and delete the host file associate "cctvlabdc" with ip 192.168.1.1
    >Reboot the W2K8 DC

    • Marked as answer by QuangDinh Thursday, September 30, 2010 1:16 PM
    Wednesday, September 29, 2010 6:02 PM