How the BDC is upgraded to PDC

Upgrade BDP to PDC due to original PDC failure

The Netdom tool is required for upgrading the PDC

NETDOM is a system support tool to be installed prior to use (CD:/support/tools/suptools. MSI)

Note: Must use the Administrator account to login to the BDC, even if the other administrator account does not work, because to seize schema master This step will be an error, no permissions

First execute the "netdom query FSMO" command to see what the current primary domain controller is

1.DC1 uses the FSMO method to capture five privileges

A. Schema master Schemamaster

B. Domain naming master Domainnamingmaster

C. Relative identification number (RID) Master Ridmaster

D. primary domain controller emulator PDCE

E. Infrastructure master Infrastructuremaster

Seize domainnaming master overrides a domain role on a connected server

Seize infrastructure master overrides a structure role on a connected server

Seize PDC overwrites the PDC role on connected servers

Seize RID master overrides the RID role on connected servers

The seize schema master overrides the schema role on connected servers

The specific actions are as follows:

Before upgrading, clean the PDC record for each DC: the following three

Active Directory Users and Computers (remove PDC)

Active Directory Sites and Services (remove PDC)

DNS (clean cache service Restart after deleting records)

Follow these steps when you have finished cleaning

Microsoft Windows [version 5.2.3790]

(C) Copyright 1985-2003microsoft Corp.

C:\Documents and Settings\Administrator. Test>ntdsutil roles

Ntdsutil:roles

FSMO maintenance:connections

Server Connections:connect to Server dc1.test.com

Bind to dc1.test.com ...

Connect dc1.test.com with the credentials of this logged-on user.

Server Connections:q

FSMO maintenance:seize domain naming master

Try to securely transfer the domain naming FSMO before requesting it.

FSMO delivery Successful-no need to obtain.

Server "Dc1.test.com" knows about 5 effects

Architecture-CN=NTDSSETTINGS,CN=DC2,CN=SERVERS,CN=DEFAULT-FIRST-SITE-NAME,CN=SITES,CN

=configuration,dc=test,dc=com

Domain-Cn=ntdssettings,cn=dc1,cn=servers,cn=default-first-site-name,cn=sites,cn=c

Onfiguration,dc=test,dc=com

pdc-cn=ntdssettings,cn=dc2,cn=servers,cn=default-first-site-name,cn=sites,cn=

Configuration,dc=test,dc=com

rid-cn=ntdssettings,cn=dc2,cn=servers,cn=default-first-site-name,cn=sites,cn=

Configuration,dc=test,dc=com

Structure-CN=NTDSSETTINGS,CN=DC2,CN=SERVERS,CN=DEFAULT-FIRST-SITE-NAME,CN=SITES,CN

=configuration,dc=test,dc=com

FSMO maintenance:seize Infrastructure Master