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Does the forest infrastructure DC need to be upgraded to 2003 before a DC in a domain

We have completed forest and domain prep, however, we have a member server running 2003 that we want to run dcpromo on, but someone has said that we first need to upgrade a DC to 2003 before we can do this.  I desperatley need to bring this new server in as a DC running DHCP, the old one is dying!!!

Is there a set order in which you upgrade from 2000 to 2003?

Thanks
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HPyne
Asked:
HPyne
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1 Solution
 
Jay_Jay70Commented:
Hi HPyne,

no, as long as you have run domain prep and forest prep you will be fine, remember if its a R2 server you will have to run adprep from the second disk of the R2 set

you will have no problems having a 2003 server in a 2000 forest
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Pete LongConsultantCommented:
^^^^^^^^^^^^ spot on :)
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Jeffrey Kane - TechSoEasyPrincipal ConsultantCommented:
Just to add a bit... Server 2003 actually runs as a Windows 2000 Server until you raise the Domain Functional Level once there are no more Windows 2000 or NT4 servers on a network.

http://technet2.microsoft.com/WindowsServer/en/Library/b3674c9b-fab9-4c1e-a8f6-7871264712711033.mspx

Jeff
TechSoEasy
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bilbusCommented:
no you only run adprep on DCs

Run forest prep (one on 2003 CD) on the single 2000 domain controler that holds infstruture role.
Run domain prep  (one on 2003 CD) on any 2000 domain controler. This only needs to be done to one server.

Now you will have schema version 30 (or 31)

Now you can run dcpromo on the 2003 server and make it a DC

you do not need to upgrade all your DCs to 2003 .. Adprep upgrades the schema to the 2003 compadable version, you will still have a 2000 native domain (do not upgrade your domain to 2003 until you have no more 2000 controlers (you dont need to upgrade its fine))

ITs really easy you will have no problems i did this last week.

Note if you have exchange, you will have schema errors .. just reboot exchange server and they will go away
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Pete LongConsultantCommented:
bilbus - with R2 you are required to run adprep on the Schema Master, and domainprep (can be run on any DC howerver its best done on the infrastructure master)then re-run domain prep with a /gpupdate switch

>>Note if you have exchange, you will have schema errors .. just reboot exchange server and they will go away

Not strictly true - Assuming all your DC's are at SP4 (the rules state SP3 but hey why not SP4) - If you have Exchange 2003 you have to make the scema writable and change the attributes of a 3 exchange entities via ldf first.
http://support.microsoft.com/default.aspx?scid=kb;en-us;325379
http://support.microsoft.com/kb/285172/
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Pete LongConsultantCommented:
>>have Exchange 2003

typo should read

>>have Exchange 2000
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HPyneAuthor Commented:
Thanks all, but now I'm even more confused.

So with the 2003 prep complete, but no 2003 DCs yet running, we can promote a new 2003 member server to be a DC, even if its in a child domain?

We have run forest prep on the master in the forest and then yesterday I ran domain prep in my domain, which is one of many domains.  The server that we want to run dcpromo on is not in the main domain, that domain does not have any 2003 DCs.

H
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Pete LongConsultantCommented:
>>So with the 2003 prep complete, but no 2003 DCs yet running, we can promote a new 2003 member server to be a >>DC, even if its in a child domain?

with forest and domain prep complete? then YES providing you have run domain prep on the clild domain :)
to be on the safe sire run adprep /domain prep on the infrastructure masters of ALL the domains (forestprep only needs to be run once in the forest - regardless of the number of trees in the forest)
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Jay_Jay70Commented:
yah thats correct forestprep extends your forest capabilities for 2003 and likes its name implies, domainprep prepares the actual domain / domains
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bilbusCommented:
forest prep is run on infrastructure master, once
Domain prep is run on any domain controler within each domain, only once per domain

You will have schema errors becuase you when you adprep, exchange does not see the schema changes until you restart it. There is a microsoft KB on this ... so be prepared but dont worry as soon as you restart exchange services or the exchange server they go away. This happens because there are more then 15 changes to the schema.

I did this same thing Friday. (server2003 not R2)

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bilbusCommented:
You dont need to run domain prep on all the child domains, but you should ... one less hassle down the road.

Once you do so you can dcpromo like usual and all is good
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Jay_Jay70Commented:
i disagree, you DO need and SHOULD run adprep /domainprep on child domains
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HPyneAuthor Commented:
Okay, so once we have run domain prep on all domains, is there an order for DCs, or does it not matter?
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Jay_Jay70Commented:
it doesnt matter!! all you are doing is extending your schema... as i mentioned at the very beggining that is all their is to it.... forestprep  then domainprep - no tricks, no hidden catches - thats it
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Pete LongConsultantCommented:
Jay_Jay is correct

>>bilbus -
>>forest prep is run on infrastructure master, once

not anymore m8 - try and run R2 adprep on a DC that isn't the schema master it just WONT run - it errros and tells you to go run it on the SM

Also the order - as Jay Jay points out dosnt really matter in R1 there was some documentation that stated the servers be done in the following order (PDC > DMN > RID Master) but thats simply not true - you can do them in any order
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Jay_Jay70Commented:
Thanks Pete
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