Hi
I think the path forward here depends greatly on what is working as much as
what it not working. When the new DCs were promoted in, did they
successfully obtain a copy of AD? If you create a test user account on each
DC, does it successfully replicate to each of the other DCs? If this test
is successful, I'd suggest the following:-
1. Physically disconnect the old problematic DC from the network. Keep it
plugged in to an isolated switch so that the network stack stays up.
2. Install GPMC on an XP client and plug it into the same switch as the old
DC. Make sure the XP client has an IP and can communicate with the old DC.
I'm assuming the old DC is running DNS and that the XP client is configured
to use the old DC for name resolution.
Grab GPMC here -
http://www.microsoft.com/downloads/...24-8CBD-4B35-9272-DD3CBFC81887&displaylang=en
3. Open a command prompt and change directory into the scripts directory
under the GPMC install path (usually \program files\gpmc\scripts).
4. At the command prompt run
cscript BackupAllGPOs.wsf <backup location> /Domain:<domain_name>
You should get all your GPOs backed up to the folder in <backup
location>. Make it a local directory on the XP client.
5. Move the XP client over to the production environment and reconfigure the
DNS client so that it is able to resolve properly. Give it a reboot so that
it picks up the new DCs and disregards the old DC.
6. Using GPMC, take note of where each GPO is linked and then delete all the
GPOs in the domain. If AD replication was working, the GPO reference will
exist in AD but have no data in SYSVOL. We need to clear this out before
restoring the GPOs backed up in 4.
7. Stop FRS on each of the new DCs.
8. Choose one of the new DCs and set the Burflags value to D4 under
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NtFrs\Parameters\Backup/Restore\Process
at Startup.
9. Start FRS on this DC.
10. On every other new DC, set the Burflags value to D2 under
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NtFrs\Parameters\Backup/Restore\Process
at Startup
11. Start FRS on these DCs.
12. On the XP client, open a command prompt and change directory into the
GPMC scripts folder. Run
cscript ImportAllGPOs.wsf <backup location from 4>.
This will import all the GPOs back into AD and into SYSVOL.
13. Re-link the GPOs as noted in step 6.
This should get you out of the woods. Keep in mind I'm assuming reliable AD
replication and name resolution. Once this is done and confirmed to be
working, you should format the old DC and rebuild it before re-connecting it
to the production network. Also perform a metadata cleanup of the
production AD to remove references to the old DC by following
216498 How to remove data in Active Directory after an unsuccessful domain
controller demotion
http://support.microsoft.com/default.aspx?scid=kb;EN-US;216498
Hope that helps.
--
Kind regards
--
Mark Renoden [MSFT]
Windows Platform Support Team
Email: (e-mail address removed)
Please note you'll need to strip ".online" from my email address to email
me; I'll post a response back to the group.
This posting is provided "AS IS" with no warranties, and confers no rights.