In place Windows Server 2003 upgrade to Windows Server 2008

Posted: May 18, 2010 in Systems Administration
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In place: Microsoft Windows Server 2003 upgrade to Windows Server 2008
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I received a request on How to make an In place upgrade from Windwos Server 2003 to Windows Server 2008, and so I decided to perform the task and document the steps to do it.  This is as easy as it comes people, step by step.
PROCESS:
01. Raise Domain Functional Level to Windows 2003
02. Raise Forest Functional Level to Windows 2003
03. Verify free space on C:\ for migration
04. Install Windows Server 2003 Support Tools
05. Query Domain Replication Status
 a. run netdom query FSMO
 b. netdiag \L
 c. dcdiag \f\dcdiag.log
 d. verify results of all the previous commands
06. Insert Windows Server 2008 media to DVD Drive
07. Prepare Forest for upgrade running the following commands via command prompt console
 a. \sources\adprep\adprep /forestprep
 b. \sources\adprep\adprep /domainprep
08. Execute setup.exe from dvd media.
09. Select the Upgrade option
10. After upgrade is complete login to server.
Conclusion:
I preferred to perform an upgrade this way rather than creating a global catalog and moving the FSMO; the only downfall to this is that if the upgrade process fails then you will have to troubleshoot to get it up and running. At the ends depends on the Adminsitrators skills and cunning.  Remember to send me more posts on other categories you would like me to test.
Alberto Ayala II, MS
MCSE, MCTS, MCITP, CompTIA A+
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