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jdcreece

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Upgrade main DC from Server 2000 to Server 2003 Enterprise

I have recently installed Exchange 2003 onto a new box running Server 2003 Enterprise. There are 2 other servers on the domain, one is a primary DC and the other is a secondary. Both machines are running Server 2000. After installing Exchange I found out that the primary DC has to be running Server 2003 also inorder to use RPC over HTTP. When trying to upgrade the primary DC from Server 2000 to 2003 Enterprise I get a warning saying that i need to run adprep /forestprep. I have run the command per the instructions in the warning and it said that it was sucessful. I have not restarted the server, though. Now when trying to upgrade I get the same message. Should I move ahead anyway?
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Pete Long
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If your 2003 servers are not R2, you may want to also check out my article:

http://support.microsoft.com/kb/555055
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jdcreece

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I appreciate the fast response. I will let you know what happens ASAP (I won't be at the location for another couple of hours.)
Also, this is the only Exchange server that has ever been on the domain and it is currently being used locally.
when I try to run adprep /forestprep again it says forest wide changes have already been made. Then when I try to install server again I get the same error message that I need to run adprep. The version I am using is Server 2003 Enterprise. It doesn't say R2 anywhere.
Pete, I tried evrything in the first part of your list. When I run netdiag or dcdiag the terminal window promptly disappears. It's been while since I've seen that happen...I know I'm dong something right. Any pointers?
Domain Controller Basic Specs: Xeon 3.4, 1GB RAM, Intel SCSI controller with 250GB of HD space (45GB used), Intel Pro 1000 MT NIC, Server 2000 5.00.2195

Pete, I tried evrything in the first part of your list. When I run netdiag or dcdiag the terminal window promptly disappears. It's been while since I've seen that happen...I know I'm dong something WRONG. Any pointers?

Oops, you know what I mean.

Are you running Adprep /domainprep also?

If your server install comes with 2 CDs, then it's likely R2.

If that's the case, then Adprep needs to be run from the second CD in \CMPNENTS\R2\ADPREP

- cheers NM :)
After reading PL's original post completely (I'm a little impatient sometimes) I've gotten to the point where  checkupgradeonly says everything is good to go. Can you please go into the PDC emulator part with a little more detail?
Have you confirmed domainprep worked?  My article explains what to look for if it didn't.

Hey Pete!
Looks like everything worked. Started upgrading, then when it reboots it starts to load 2003 and then reboots! When i start in safe mode it restarts at ACPITABL.DAT.
There is a second domain controller and users are able to connect but the can't connect to Exchange now. Do i need to promote the secondary controller?
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Tremendous how to from Pete. Thanks for the detail! Netman was also correct in the fact that there were other underlying issues that needed to dealt with.
ThanQ