Can't join Server 2008 R2 RODC to SBS2008
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Friday, June 15, 2012 11:25 PM
Hi All,
Have an SBS 2008 domain that I am trying to connect Server 2008 R2 to as a RODC at a branch office.
I have read and followed the following link but every time I run DCPROMO on the R2 server I get an error, >must prepare the forest using "adprep /forestprep"< which I have also run on the SBS domain controller (plus it seems all other adprep switches) but still no go.I'm just not sure if it wants me to run ADPREP from the R2 sources file and update the schema to R2 standard, but if that is the case just not sure if I need to take extra steps, what the risks are as this is a production system (other than backups).
So I have:-
SBS2008 server with domain
Server 2008 R2 at branch office, want to make this a RODC
Get error when trying to connect, >prepare the forest using 'adprep /forestprep'< which has been done (using server 2008 media) on SBS2008 server
This other post looks somewhat right but was from when R2 was beta product - http://social.technet.microsoft.com/Forums/en-US/winserverDS/thread/1e718bf0-1fd7-43e7-82b0-460b57dd838dthanks
Art
All Replies
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Saturday, June 16, 2012 6:21 AMModerator
In order to add RODC in windows 2008 R2 OS, you need to prepare your environment first using ADprep tool. There are two version of the adprep tool located inside windows 2008 R2 media one is 32 bit i.e adprep32.exe (To be used only on the DC containing 32 bit OS)& other is adprep.exe(To be used only on the DC containing 64 bit OS).
Considering you are running windows 2008 32bit OS, you need to use adprep32.exe located inside windows 2008 R2 media & then copy or run directly by locating adprep32.exe tool on the cmd. The cmd is adprep32 /rodcprep. There is no harm running adprep /rodcprep & its not going to have any kind of negative impact to your environment, it will only prepare your environment for the additon of RODC.
Awinish Vishwakarma - MVP - Directory Services
My Blog: awinish.wordpress.com Disclaimer This posting is provided AS-IS with no warranties/guarantees and confers no rights.- Proposed As Answer by Meinolf WeberMVP Sunday, June 17, 2012 3:13 PM
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Sunday, June 17, 2012 3:18 PM
Hello,
assure to use adprep.exe to run the command, as SBS 2008 is ONLY available as 64bit version.
And please post the output from "dsquery * cn=schema,cn=configuration,dc=domainname,dc=local -scope base -attr objectVersion" without the quotes in a command prompt.
It should provide you the schema version 47, if 44 is shown the schema is NOT prepared for Windows server 2008 R2 instead for Windows server 2008.
Best regards
Meinolf Weber
MVP, MCP, MCTS
Microsoft MVP - Directory Services
My Blog: http://msmvps.com/blogs/mweber/Disclaimer: This posting is provided AS IS with no warranties or guarantees and confers no rights.
- Marked As Answer by sometechhead Tuesday, June 19, 2012 12:40 AM
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Sunday, June 17, 2012 4:30 PM
You need to prepare the domain to install RODC in the enviroment.You need to insert win2008 R2 DVD on Win2008SBS server and run adprep /forestprep,adprep /domainprep /gpprep & adprep /rodcprep.
http://technet.microsoft.com/en-us/library/cc731243(v=ws.10).aspx
Install RODC in SBS2008 domain.
http://blogs.technet.com/b/11/archive/2009/08/31/installing-a-read-only-domain-controller-rodc-in-sbs-2008-and-essential-business-server-2008-environment.aspx
Hope this helpsBest Regards,
Sandesh Dubey.
MCSE|MCSA:Messaging|MCTS|MCITP:Enterprise Adminitrator | My Blog
Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.- Proposed As Answer by VenkatSP Sunday, June 17, 2012 5:21 PM
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Tuesday, June 19, 2012 12:45 AM
Hi,
Checked my schema and yes it was at 44, ran adprep from the R2 media and upgraded to 47 now. RODC can now connect and join the domain.
Thank you
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Tuesday, June 19, 2012 12:55 AMThanks for assistance, mainly confirmation that I need to run R2 media which the links (that I also had) don't mention so I was only getting it to 44 and not 47 which I guess is the minimum the R2 server can do.
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