dcpromo on 2003 R2 Server in Mixed Mode asking for Domain Prep Tool?

[Paul]

Hi,

I just upgraded one of my company's domains from NT4 to Windows 2003
Active Directory. We're currently running in Mixed Mode, so our NT
BDC's in our field offices could still serve login requests. Well, I
built a new 2003 Server that I was going to offload all the "first
domain controller in forest tasks" to, so we could decomission the
upgraded box. I get it built and run "dcpromo", which takes me
through the Active Directory Install Wizard.

It find the domain no problem and accepts my credentials. It then
examines the current forrest, and comes back with an operation failed
error:

"The operation failed because:

The Active Directory Installation Wizard cannot continue because the
forest is not prepared for installing Windows Server 2003. Use the
adprep command-line tool to prepare both the forest and the domain.
For more information about using the Adprep, see Active Directory
Help.

'The Version of the Active Directory schema of the source forest in
not compatible with the version of Active Directory on this computer.'
"

This doesn't make much sense to me since the current DC is a Windows
2003 R2 Server box. I even used the same CD's in the builds... Is
there some particular "dcpromo" switch I have to used when promoting
in a mixed mode domain? Is it just because mixed mode is compatible
with Windows 2000 AD that it is missing the relevant information and
the prep tool needs to be run. This seemed abnormal, so I wanted to
check here first.

Paul

[Danny Sanders]

R2 is a 2 disk set. There is an adprep that can be ran from the first CD to
prepare the domain for Win 2k3 and there is an AD prep that can be ran from
the second CD.

Try running adprep from the second CD.


hth
DDS

"Paul" <pauldi@iona.com> wrote in message
news:1177705642.221962.222130@o40g2000prh.googlegroups.com...
> Hi,
>
> I just upgraded one of my company's domains from NT4 to Windows 2003
> Active Directory. We're currently running in Mixed Mode, so our NT
> BDC's in our field offices could still serve login requests. Well, I
> built a new 2003 Server that I was going to offload all the "first
> domain controller in forest tasks" to, so we could decomission the
> upgraded box. I get it built and run "dcpromo", which takes me
> through the Active Directory Install Wizard.
>
> It find the domain no problem and accepts my credentials. It then
> examines the current forrest, and comes back with an operation failed
> error:
>
> "The operation failed because:
>
> The Active Directory Installation Wizard cannot continue because the
> forest is not prepared for installing Windows Server 2003. Use the
> adprep command-line tool to prepare both the forest and the domain.
> For more information about using the Adprep, see Active Directory
> Help.
>
> 'The Version of the Active Directory schema of the source forest in
> not compatible with the version of Active Directory on this computer.'
> "
>
> This doesn't make much sense to me since the current DC is a Windows
> 2003 R2 Server box. I even used the same CD's in the builds... Is
> there some particular "dcpromo" switch I have to used when promoting
> in a mixed mode domain? Is it just because mixed mode is compatible
> with Windows 2000 AD that it is missing the relevant information and
> the prep tool needs to be run. This seemed abnormal, so I wanted to
> check here first.
>
> Paul
>

[David V]

Run adprep /forestprep on the domain controller running the Schema Master
role using the Ws2K3 CD. Make sure the unplug this server from the network
before running this process, and only plug it back in if and when the forest
prep is successful, as a corrupted schema will hose your whole forest. I
learned this once the hard way...fortunately it was in a test lab.

Then, once the schema changes have replicated throughout the entire forest,
run adprep /domainprep once in each domain where you want to install a 2003
DC. Once that's all done and the changes are replicated, you can run dcpromo
on any WS2K3 system.

"Paul" wrote:

> Hi,
>
> I just upgraded one of my company's domains from NT4 to Windows 2003
> Active Directory. We're currently running in Mixed Mode, so our NT
> BDC's in our field offices could still serve login requests. Well, I
> built a new 2003 Server that I was going to offload all the "first
> domain controller in forest tasks" to, so we could decomission the
> upgraded box. I get it built and run "dcpromo", which takes me
> through the Active Directory Install Wizard.
>
> It find the domain no problem and accepts my credentials. It then
> examines the current forrest, and comes back with an operation failed
> error:
>
> "The operation failed because:
>
> The Active Directory Installation Wizard cannot continue because the
> forest is not prepared for installing Windows Server 2003. Use the
> adprep command-line tool to prepare both the forest and the domain.
> For more information about using the Adprep, see Active Directory
> Help.
>
> 'The Version of the Active Directory schema of the source forest in
> not compatible with the version of Active Directory on this computer.'
> "
>
> This doesn't make much sense to me since the current DC is a Windows
> 2003 R2 Server box. I even used the same CD's in the builds... Is
> there some particular "dcpromo" switch I have to used when promoting
> in a mixed mode domain? Is it just because mixed mode is compatible
> with Windows 2000 AD that it is missing the relevant information and
> the prep tool needs to be run. This seemed abnormal, so I wanted to
> check here first.
>
> Paul
>
>

[Paul]

Thanks. I was going to run the tool, I was just curious as to why I'd
need to seeing as the only other non-NT4 DC in this domain is a
Windows 2003 R2 Server upgraded from an NT box. You'd imagine that
Windows 2003 AD even though it was upgraded would still be compatible
with other Windows 2003 AD boxes. Is that an erroneous assumption
because it is in Mixed Mode and not Interim mode? Just seems kind of
sloppy to me.

Paul

On Apr 27, 4:44 pm, "Danny Sanders" <DSand...@NOSPAMciber.com> wrote:
> R2 is a 2 disk set. There is an adprep that can be ran from the first CD to
> prepare the domain for Win 2k3 and there is an AD prep that can be ran from
> the second CD.
>
> Try running adprep from the second CD.
>
> hth
> DDS
>
> "Paul" <pau...@iona.com> wrote in message
>
> news:1177705642.221962.222130@o40g2000prh.googlegroups.com...

[Danny Sanders]

You'd imagine that
> Windows 2003 AD even though it was upgraded would still be compatible
> with other Windows 2003 AD boxes. Is that an erroneous assumption


R2 was released later than Win 2k3. There are updated *features* in R2 that
require a new Schema.

hth
DDS

"Paul" <pauldi@iona.com> wrote in message
news:1177707288.078269.216320@t38g2000prd.googlegroups.com...
> Thanks. I was going to run the tool, I was just curious as to why I'd
> need to seeing as the only other non-NT4 DC in this domain is a
> Windows 2003 R2 Server upgraded from an NT box. You'd imagine that
> Windows 2003 AD even though it was upgraded would still be compatible
> with other Windows 2003 AD boxes. Is that an erroneous assumption
> because it is in Mixed Mode and not Interim mode? Just seems kind of
> sloppy to me.
>
> Paul
>
> On Apr 27, 4:44 pm, "Danny Sanders" <DSand...@NOSPAMciber.com> wrote:
>> R2 is a 2 disk set. There is an adprep that can be ran from the first CD
>> to
>> prepare the domain for Win 2k3 and there is an AD prep that can be ran
>> from
>> the second CD.
>>
>> Try running adprep from the second CD.
>>
>> hth
>> DDS
>>
>> "Paul" <pau...@iona.com> wrote in message
>>
>> news:1177705642.221962.222130@o40g2000prh.googlegroups.com...
>

[Paul]

They are both R2 boxes though. Thought is was odd.