Windows Server

Louise · Guest

Hello,

We currently have a Domain Controller with Windows 2000 Server and are
planning to upgrade it to Windows 2003 Server Standard.

I was reading the upgrade document at:
http://www.microsoft.com/windowsserver2003/evaluation/whyupgrade/win2k/w2ktows03-2.mspx

It said that it is better to do a clean installation or migration rather
than an upgrade. There are about 30 user accounts on the server. Do you
think an upgrade will work fine? Are there any special tools that should be
used for the upgrade?

Do I just put in the 2003 Server CD and select upgrade,and all the user
accounts, group policy, and everything will be operational after the
upgrade?

Thanks in advanced.

Thanks,
L

Ada Pan [MSFT] · Guest

Hello Louise,

Your plan sounds good. Actually, they are commonly used steps for migration
from Windows 2000 to another Windows Server 2003 machine.

For your convenience, I have summarized the steps below:

Note: Please perform a complete backup for your Windows 2000 DC first.

1) Put the new Windows Server 2003 into the domain.
2) Change its TCP/IP configurations to make sure it use the existing
Windows 2000 as the preferred DNS server.
3) Join it to the domain.
4) Extend the current domain's Schema by running ADPRPE commands. (See 2 in
the "Additional Information" section.)
5) Promote the new Windows Server 2003 to be a replica DC.
6) Transfer the GC/FSMO roles from the old Windows 2000 DC to the new
Windows Server 2003 DC. (See 3 in the "Additional Information" section.)
7) Transfer the DNS and DHCP services to the new DC. (See 4 in the
"Additional Information" section.)
8) Migrate other necessary data to the new Windows Server 2003 DC.
9) Change the DC's TCP/IP configuration and DHCP scope configurations to
make sure every machine in the domain (including the DCs) is using the new
Windows Server 2003 DC/DNS as their Preferred DNS server.
10) Offline the Windows 2000 DC for several days to see if everything
works. If yes, we can demote it later.

Additional Information:
======================

1. Please perform a complete backup before the migration.

2. How to extend AD schema before adding a new Windows Server 2003 DC into
the existing Windows 2000 AD domain?

The most important thing during this upgrade plan is that we need to extend
the AD schema of the existing domain.

Generally speaking, to upgrade a new Windows Server 2003 DC in an existing
Windows 2000 domain, we need to use the ADPREP commands ("ADPREP
/FORESTPREP" and "ADPREP /DOMAINPREP") to upgrade the existing Windows 2000
forest and domain to ensure that they contain the additional objects,
attributes and permissions necessary to support the Windows Server 2003
Active Directory environment.

"ADPREP /FORESTPREP" is a one-time operation performed on the schema
operation master (FSMO) of the forest. The FORESTPREP operation must have
successfully completed and replicated to the infrastructure master of each
domain before "ADPREP /DOMAINPREP" can be executed in that domain.

To run "ADPREP /FORESTPREP", the user must be a member of the Schema
Admins, Domain Admins, and Enterprise Admins groups.

"ADPREP /DOMAINPREP" is a one-time operation run on the infrastructure
operation master domain controller of each domain in the forest being
upgraded.

To run "ADPREP /DOMAINPREP", the user must be a member of the Domain Admins
group of the domain in which you are running DOMAINPREP.

The following documents contain good information regarding these operations:

278875 Cannot Promote a Windows Server 2003 Domain Controller into a
Windows
http://support.microsoft.com/?id=278875

How to use the adprep command at the command line
http://www.microsoft.com/technet/prodtechnol/windowsserver2003/proddocs/ents
erver/adprep.asp

255690 HOW TO: View and Transfer FSMO Roles in the Graphical User Interface
http://support.microsoft.com/?id=255690

3. How to transfer the GC/FSMO roles from another DC to a new one?

Please refer to the following articles:

Configure a domain controller as a global catalog server (Windows Server
2003)
http://www.microsoft.com/technet/prodtechnol/windowsserver2003/proddocs/stan
dard/msmqconcepts/msmq_inst_set_gc.asp

324801 HOW TO: View and Transfer FSMO Roles in Windows Server 2003
http://support.microsoft.com/?id=324801

4. How to migrate DNS and DHCP services?

814591 HOW TO: Install and Configure DNS Server in Windows Server 2003
http://support.microsoft.com/?id=814591

323383 How To Replace the Current Primary DNS Server with a New Primary DNS
http://support.microsoft.com/?id=323383

How to move a DHCP database from a computer that is running Windows NT
Server 4.0, Windows 2000, or Windows Server 2003 to a computer that is
running Windows Server 2003
http://support.microsoft.com/?id=325473

5. The following are some nice documents for upgrading from Windows 2000 to
Windows Server 2003 DC:

325379 How to Upgrade Windows 2000 Domain Controllers to Windows Server 2003
http://support.microsoft.com/?id=325379

Upgrading from Windows 2000 Server to Windows Server 2003
http://www.microsoft.com/windowsserver2003/upgrading/w2k/default.mspx

Upgrading from Windows 2000 Server to Windows Server 2003
http://www.microsoft.com/windowsserver2003/evaluation/whyupgrade/win2k/w2kto
ws03-2.mspx

Hope this helps.

Regards,

Ada Pan

Microsoft Online Partner Support
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