2003-2008 dc migration

December 18, 2009 at 19:02:11
Specs: Windows 7
I have a new client and am doing a migration from 2003-2008 server related to AD/DC. I know I have to run the adprep switches on the 2003 DC's to prepare it for 2008. Do I have to do the prep switches on all the DC's at all the branch offices also before I am able to raise functional level to 2003 and install a 2003 dc?

See More: 2003-2008 dc migration

Report •


#1
December 19, 2009 at 15:09:45
I'm not sure what you are talking about. What domain functional level are you at now? You run the adprep switches on the dc running the Infrastructure master role. You run forest prep on the schema master. You don't run it on every dc but you should be sure replication is completed before continuing.

Are you asking if you have to raise the domain functional level to 2008? The answer is no. You can leave it at 2003. You can leave it at 2000 if that is were it is. You don't need a 2008 functional level to install a 2008 dc. In fact, unless all your dc's are 2008, you won't be able to raise it.


Report •

#2
December 19, 2009 at 20:03:08
I am at nt right now. My goal is to bring the main locations nt, and the 3 branch office nt domain controllers to 2008 and demote the nt domain controllers.

Report •

#3
December 19, 2009 at 20:05:32
Well from what I know is that you have to prep the NT domain with 2003 disk, then you can install 2003 dc. I thought it was the same with going to 2008 functional level. Basically you answerd my question were do you perform the adprep switch on. But I assume I need to have a DC at all locations on 2003 before im able to get to 2008 level.

Report •

Related Solutions

#4
December 19, 2009 at 21:32:13
It's been a long, long time since my NT 4 days but I think you might be missing a few things. I believe there are only 2 ways to migrate your NT4 domain. One is to create a new 2003 domain from scratch and create a trust between the two. Not entirely painless to say the least.

The other way that would be much simpler, is to upgrade your NT PDC to Windows 2003. This means doing an in place upgrade of your NT server. This assumes the hardware will support 2003.

You can not just 'prep' and NT domain and install a 2003 domain controller. I'm afraid it isn't that simple. An NT domain and a Active Directory domain are apples and oranges.

The bottom line - unless you really have some ties to that old NT domain, I think you are better off just starting over. I think you'll be better off in the long run.

Good luck but do your research. Like I said, moving from NT4 to 2008 domain is a multi step process and not something for a new admin to try in my opinion.


Report •

#5
December 19, 2009 at 21:49:16
Ive already done it once. I just like hearing feedback because it seems like there are multiple ways to do things with MS. I did the transition from a 2000sbs server to 2003, then went to 2008

Report •

#6
December 22, 2009 at 09:24:11
You run adprep only on the dc holding the schema fsmo role. A sbs has all the roles by default as does the first dc in the forest.

Report •


Ask Question