Adding first Exchange 2007 server into Exchange 2000 Org - Issue

We have an Exchange 2000 Organization and today we successfully ran:

setup /preparelegacyperms
setup/prepareschema
setup/preparead

We installed the first Exchange 2007 server into the existing Org with the CAS role with no issues.  We then went to add the Hub Transport server role onto the same server and at the "Mail Flow Settings" page, added the Exchange 2000 server which is the master server in the routing group.  At the end of the install, it came up with a failure messages stating "the Exchange 2000 Server Computer Object could not be found in Active Directory"

I rebooted the server and noticed in ESM on our Exchange 2000 servers that there is now a routing group connection between the Exch2k7 server and the Exchange 2000 server I identified during setup.  I queried AD for all of our Exchange 2000 servers and noticed there are no computer objects for any of them???

Should I manually create computer objects for our Exchange 2000 servers?  Is this routing group connector between Exchange 2007 and Exchange 2000 (I understand it's temporary) legit even though the setup came back with errors?

Key questions are whether or not to manually create Exchange 2K computer objects and should I remove the Hub Transport role and reinstall after those objects are created?

Thanks
adexchmanAsked:
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gupnitCommented:
Hi,
Before we get into any sort of troubleshooting please confirm that all items in checklist were followed and were true or not
http://technet.microsoft.com/en-us/library/bb125239.aspx 
Cheers
Nitin
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adexchmanAuthor Commented:
Hello,

All of the checklists itmes are true except I believe for the Exchange 2000 Post SP3 update.

If I go into ESM and choose my servers, they're all at version 6249.4

????
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gupnitCommented:
Well go ahead and download and install.
Then we will go ahead and troubleshoot. As woithout prerequisites, it would be no use troubleshooting. Also please let me know what errors do u see in eventviewers.
Also run Exchange Best Practise Analyzer in Exchange 2007 and do a Readiness check also
THanks
Nitin
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gupnitCommented:
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adexchmanAuthor Commented:
Do you think I'll need to uinstall the CAS/HUB roles from this Exchange 2007 so that I have no Exchange 2007 introduced into my Org?
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gupnitCommented:
Hi,
Since Exchange 2007 prep has already been done, it is no use removing them. Do not remove. Just go ahead and run ExBPA and see where you stand interms of readiness.
Also, do not worry will take you through your problem and will help you resolve it
Cheers
Nitin
PS: I might be going olffline for sleep in another 15 mins,  will take it forward tomorrow, if you do not hear from me.
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adexchmanAuthor Commented:
I ran the readiness check and the only critical error that came back was that some of the Exchange 2000 servers had "Permissions Inheritence Blocked".  There were no critical errors or warnings regarding the Exchange 2000 servers not having the post SP3 rollup applied.  Is there an easy way to go onto each Exchange 2000 server to see if that post SP3 rollup was already applied?

Thanks for your help.
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abdulzisCommented:
Any reason why inheritance has been disabled on the legacy Exchange servers? This may cause permission issues for the Exchange Servers group not to be able to read configuration of the legacy systems.
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adexchmanAuthor Commented:
I just realized that the 4 servers that the Readiness Check reported as having permissions issues are all the cluster virtual server names.  We have A/A Exchange 2000 Clusters.
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adexchmanAuthor Commented:
I updated the security tab on all of the clustered virtual server objects to allow inheritence then ran the readiness check again with success.  No more critial errors regarding inheritence.  My concern is regarding the error I received when I installed the Hub Transport role (the one that said there was no computer object for the Excange 2000 server specified in the mailflow settings".

There are no computer objects for any of our Exchange 2000 servers in our AD?
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gupnitCommented:
No do not worry. Install Mailbox role and then create RG Connectors, let me know then
You need to create two way Routing Group Connectors on the Exchange 2007 server.
Here are links to guide you: http://technet.microsoft.com/en-us/library/bb232209(EXCHG.80).aspx  http://technet.microsoft.com/en-us/library/bb691187(EXCHG.80).aspx 

Further reading: http://www.msexchange.org/tutorials/Implementing-Exchange-Server-2007-coexistence-Exchange-Server-2003.html  http://msexchangeteam.com/archive/2006/11/01/430185.aspx 
 
 
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