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About to upgrade 2003 environment to 2003 R2....prerequisites?

Hello all. I have been asked to upgrade a medium-sized company (7 locations, 9 DC's, few hundred users) from 2003 Server to 2003 R2. I have yet to perform an actual upgrade to R2 (just new installations), and before I touch this environment, I'm just look for some suggestions or perhaps anyone with prior experience can offer their opinions on how smooth this upgrade went. Are there any prerequisites to performing this upgrade? Does the existing Schema have to be extended?  

Thanks in advance for any help.
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Italia_NYC
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Italia_NYC
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1 Solution
 
oBdACommented:
R2 is basically W2k3 SP1, with some additional goodies; upgrading W2k3 SP1 to R2 is absolutely unspectacular. Just insert the second R2 CD, follow th wizard, enter the R2 license code when prompted.
There's only one "issue", and that is if you want to upgrade your DCs to R2; in this case, you need to run an additional adprep /forestprep from the cmpnents\R2\adprep on the second R2 CD (note that this is *not* required if you only want to join a member server).
Extending Your Active Directory Schema for New Features in Windows Server 2003 R2
http://www.microsoft.com/downloads/details.aspx?familyid=5B73CF03-84DD-480F-98F9-526EC09E9BA8&displaylang=en
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Pete LongConsultantCommented:
oBdA is correct if you have exchange 2000 then ensure you also read
http://support.microsoft.com/default.aspx?scid=kb;en-us;325379 
http://support.microsoft.com/kb/285172/ 
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Pete LongConsultantCommented:
The first link is titled "Win 2000" but running Adprep on an R1 domain with Ex2K will produce the same error (also if you have any 2K DC's make sure they are at least at SP3)
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Pete LongConsultantCommented:
Italia_NYC thanks m8, but the question was originally answered by oBdA I was just following up
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Italia_NYCAuthor Commented:
Oh damn, you're right. The accepted answer was supposed to go to oBdA. Sorry about that. Not sure what can be done about it now. :(
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Pete LongConsultantCommented:
No Probs Ill post in CS for the mods to open the question then you can close it accordingly :)
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