Thursday, February 07, 2013 12:02 PM
I've two domain controllers one is running on win 2003 and other on win server 2008 R2. Roles are distributed on both servers. I would like to migrate win server 2003 to 2008 R2. So I'll have 2 controllers of win 2008. What is the best practice or what is procedure?
Friday, February 08, 2013 12:48 AM
Santhosh Sivarajan | Houston, TX
Windows 2012 Book - Migrating from 2008 to Windows Server 2012
This post is provided ASIS with no warran
Sunday, February 10, 2013 2:40 PM
> Using the copied folder on each DC run the following commands in the order specified in the following table. Use adprep32 since the OS on the DC is assumed to be 32bit.
Schema and Enterprise Admin
Schema and Enterprise Admin
Domain Naming Master
adprep /domainprep /gpprep
> Check the following log file on each DC to verify there were no errors.
> If you run adprep multiple times on a DC then a new log is created for each run.
Configuring the Windows Time Service for Windows Server
Best regards Biswajit Biswas Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. MCP 2003,MCSA 2003, MCSA:M 2003, CCNA, MCTS, Enterprise Admin
- Edited by i.biswajith Sunday, February 10, 2013 2:41 PM
Wednesday, February 20, 2013 11:22 PM
the OP already has a Windows server 2008 R2 DC "two domain controllers one is running on win 2003 and other on win server 2008 R2".
So adprep commands are not required anymore.
in your case just add the new server to the domain, run dcpromo on it, assure to check GC and DNS during promotion and after replication has occurred start demoting the old OS DC.
Demoting the old DC
- transfer the FSMO roles from the old DC to another one, either all on one or divided, doesn't really matter
- reconfigure your clients/servers that they not longer point to the old
DC/DNS server on the NIC
- to be sure that everything runs fine, disconnect the old DC from the
network and check with clients and servers the connectivity, logon and also with
one client a restart to see that everything is ok
- then run dcpromo to demote the old DC, if it works fine the machine will
move from the DC's OU to the computers container, where you can delete it by
hand. Can be that you got an error during demoting at the beginning, then
uncheck the Global catalog on that DC and try again
- check the DNS management console, that all entries from the machine are
disappeared or delete them by hand if the machine is off the network for ever
- also you have to start AD sites and services and delete the old servername
under the site, this will not be done during demotion
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.