We're in the process of replacing our w2k DCs with w2k3 machines. Forestprep and domainprep went fine as well as putting the first new w2k3 DC up.

Yesterday we demoted one of the old w2k machines and removed it from the domain. Configured a w2k3 server with the same name and IP and ran dcpromo when it was a workgroup member. About 6 minutes into the process this event showed up in the directory service log

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Event Type:     Error
Event Source:   NTDS General
Event Category: Internal Processing
Event ID:       1168
Date:           8/16/2006
Time:           2:06:35 PM
User:           NT AUTHORITY\ANONYMOUS LOGON
Computer:       BIRD
Description: Internal error: An Active Directory error has occurred.

Additional Data
Error value (decimal): -1073741823
Error value (hex): c0000001
Internal ID: 3000e54

and then this

Event Type:     Information
Event Source:   NTDS Setup
Event Category: Setup
Event ID:       1442
Date:           8/16/2006
Time:           2:06:57 PM
User:           N/A
Computer:       BIRD
Description:
During the cleanup operation of a failed Active Directory installation, the NTDS Settings object for the local server could not be deleted from the remote domain controller.

Server:
CN=BIRD,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=wn,DC=fnal,DC=gov
Remote domain controller: lbird.wn.fnal.gov

User Action
Delete this object manually using Active Directory Sites and Services.

Additional Data
Error value: The RPC server is unavailable. 1722

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The server ended up being non responsive and required a reboot.

I've been doing some research and I can' find answers to a a couple of questions:

1) Would starting the dcpromo process with the server not in the domain have caused this? I've always added the machine to the domain before promotion. The admin who attempted the promotion said he has done it this way before.

2) When deleting the object from AD (as specified above) the option that actually deletes the object states that the DC is permanently offline and can no longer be demoted... Does chosing this option prevent me from adding the DC with the same name (Like seizing FSMO roles) ?

        al

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Al Lilianstrom
CD/CSS/CSI
[EMAIL PROTECTED]
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