Unable to create Read only Domain controller in 2003 forest level

[fresher]

Hi,

Unable to add 2008 server as RODC in my domain, My main Domain controller has OS 2003.

I did execute following commands in my dc

adprep /forestprep
adprep /domainprep gp
adprep /rodcprep

In 2008 server when i run dcpromo, i can not select rodc option. I can make it ADC but not RODC and in the message box following message appears.

"A Domain Controller running windows server 2008 or server 2008 R2 could not be located in this domain. To install a read-only domain controller (RODC), the domain must have a domain controller running windows server 2008 or 2008 R2"

[CodGuru]

There might be many of the reasons for this issue. So I am not able to predict the exact reason for this. If you want then you can visit this site. They have mentioned all the possible issues and their symptoms along with the solution. So see there and check if you can resolve this problem. I hope that you will solve this problem soon. Please reply back if you not get the answer from there.