Adding a Windows Server 2022 Domain Controller to an Existing Domain with a Windows Server 2008 R2
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Adding a Windows Server 2022 Domain Controller to an Existing Domain with a Windows Server 2008 R2 Domain Controller
1. Prepare
DC21 : Domain Controller(Yi.vn) | DC25 : Workgroup running Windows Server 2022
2. Step by step : Join DC25 to Yi.vn and promote to Domain Controller role
DC25 : Join to Yi.vn and promote to Domain Controller role
Join to Yi.vn --- Restart server
Server Manager - Manage - Add Roles and Features - Next to Server Roles - Select "Active Directory Domain Services" - Add Features - Next and Install - Close
Click Notifications - Click "Promote this server to a domain controller" - Select "Add a domain controller to an existing domain"
=== fail 'Verification of replica failed. The forest functional level is not supported.
To install a Windows 2022 domain or domain controller, the forest functional level must be Windows Server 2008 or higher.'
DC21 : Raise forest functional level and SYSVOL migration from FRS to DFSR
Start - Administrative Tools - Active Directory Domains and Trusts - Right-Click 'Active Directory Domains and Trusts [DC21.Yi.vn]'
Raise Forest Functional Level... - Select an available forest functional level: Choose 'Windows Server 2008 R2' - Raise - OK
Right-Click Yi.vn - Raise Domain Functional Level... - Check current domain functional level : Windows Server 2008 R2 - OK
Start - cmd, type :
dcdiag /e /test:sysvolcheck /test:advertising # Test that sysvol is shared and advertising
dfsrmig /getglobalstate # Verify the system uses the FRS or DFRS
dfsrmig /setglobalstate 1 # Waiting between 15 min to 1 hour
dfsrmig /getmigrationstate # Verify that all domain controllers have migrated successfully to the worldwide state
dfsrmig /setglobalstate 2 # Waiting between 15 min to 1 hour
dfsrmig /getmigrationstate # Verify that all domain controllers have migrated successfully to the worldwide state
dfsrmig /setglobalstate 3 # Waiting between 15 min to 1 hour
dfsrmig /getmigrationstate # Verify that all domain controllers have migrated successfully to the worldwide state
net share # Verify the SYSVOL share and type net share
Start - services.msc - check 'File Replication Service' Disabled and Stopped --- OK
DC25 : Promote to Domain Controller role
Click Notifications - Click 'Promote this server to a domain controller' - Select "Add a domain controller to an existing domain"
Type the Directory Services Restore Mode (DSRM) password : Enter Password and Confirm password - Next to Install - Restart
Logon use account Yi\administrator - Server Manager - Tools - Active Directory Users and Computers = OK
Start - cmd - Type : nltest /dclist:Yi.vn === Check Domain Controllers
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