Active Directory Migration – In this blog, we’ll move the roles on our Server2008 (Windows Server 2008 R2 SP1) AD server to Server2019 (new Windows Server 2019 Standard).
Before proceeding to migrate an Active Directory from Windows Server 2008 R2 to Windows Server 2019, you want to first install Windows Server 2019 on a replacement machine which can then be promoted to Active Directory Server 2019.
Install Windows Server 2019.
How to Install Windows Server 2019, Click here
Rename Windows Server 2019.
How to rename Windows Server 2019, Click here
Configure the IP Addresses in Server 2019.
The next step is to configure the IP and the DNS Addresses on the new server.
Windows Server 2008 R2 Windows Server 2019
Computer Name: Server2008 Server2019
Domain Name: xpertstec.local
IP Address (Static): 10.0.0.20 10.0.0.22
Subnet Mask: 255.255.255.0 255.255.255.0
Default Gateway: 10.0.0.1 10.0.0.1
Preferred DNS Server: 10.0.0.20 10.0.0.20
Active Directory Migration 2008
1- First, let’s have a glance at my environment. we have a domain controller xpertstec.local which is installed on Windows Server 2008 R2.
Raise the Forest Functional Levels and Domain Functional Levels in Windows Server 2008 R2.
2- Click Start and select Administrative Tools and then Active Directory Domains and Trusts.
3- Right click on Active Directory Domains and Trusts and choose Raise Forest Functional Level.
4- Select an available forest functional level “Windows Server 2008 R2 and click Raise.
5- Now click on OK.
6- The forest functional level was raised successfully so click on ok.
Now Raising the Function Level of the Domain
7- Right click on the Domain name (xpertstec.local) and click Raise Domain Functional Level.
8- It has already got raised the Domain Functional Level to Windows Server 2008 R2 so click on close.
9- Now type the Netdom query fsmo command to check which server has installed FSMO roles.
10- DNS Manager.
Active Directory Migration Steps
Join Windows Server 2019 to an Active Directory Domain.
How to Join Windows Server 2019 to an Active Directory Domain, Click here
Now sign in Windows Server 2019 with the domain administrator account.
Create Additional Domain Controller (ADC) In Windows Server 2019
How to Create Additional Domain Controller (ADC) In Windows Server 2019 so Click here
11- Now have a look at my active directory Domain Controllers Server2008. We can now see that our server Server2019 is in the domain role.
Transferring the Flexible Single Master Operations (FSMO) Role
I have a Windows Server 2008 Domain Controller (server2008) and have a further Windows Server 2019 domain controller (Server2019). To finish the migration. We’d like to transfer 5 FSMO roles to the new domain controller.
- Schema Master
- Domain Naming Master
- PDC
- RID pool manager
- Infrastructure Master
12- To find which server is currently holding FSMO then run the following command. netdom query fsmo
The FSMO roles are currently with the Windows Server 2008 R2 Active Directory domain controller (server2008)
Using Active Directory Schema snap-in to transfer the Schema Master role 13- Open Command Prompt in administrative mode and type regsvr32 schmmgmt.dll and then click on ok.
Operations Master Roles Tranfer
14- On the Server2019 server, open Active Directory Users and Computers, right click domain xpertstec.local and then click Operations Masters.
15- On the Operations Masters, Select the RID tab and select the Change button.
16- Now click Yes.
17- The operations master role was successfully transferred so click ok.
18- Now you can verify that Operation master now transferred to our new Server Server2019.xpertstec.local
19- On the Operations Masters, select the PDC tab and then click the change button.
20- Now click Yes.
21- The operations master role was successfully transferred, then click ok.
22- Now you can verify that Operation master now transferred to our new Server Server2019.xpertstec.local
23- On the Operations Masters, select the Infrastructure tab and click on change button.
24- Then click Yes.
25- The operations master role was successfully transferred, then click ok.
26- Now you can verify that Operation master now transferred to our new Server Server2019.xpertstec.local
27- Open Server Manager and select Tools and then click Active Directory Domains and Trusts.
28- Right click on Active Directory Domains and Trusts and then select change active directory domain controller.
29- Select this Domain Controller or AD LDS Instance and click on the domain controller that you want to be the schema master role and then click ok.
Transfer Domain Master Role
30- Right click Active Directory Domains and Trusts and then select Operations Master.
31- Now click on Change
32- then click Yes.
33- The operations master was successfully transferred then click ok.
34- Confirmed the domain naming operation master role and click on Close.
35- Now we need to move our Schema Master role, so we need to register the schmmgmt.dll open command prompt and run the command below.
Regsvr32.exe C: windows system32 schmmgmt.dll
The process was completed successfully so click on ok.
36- Open Microsoft Management Console mmc type mmc and then hit enter.
Console
37- Select the File tab and then select Add/Remove Snap-in.
38- From the left side, under Available Snap-ins, Select Active Directory Schema, click Add button and then click ok.
39- Right click Active Directory Schema, and then select Change Active Directory Domain Controller.
40- Select this Domain Controller or AD LDS Instance, click on the domain controller that you want to be the schema master role and then click on ok.
41- Now click OK.
42- In the console1, right click Active Directory Schema (Server2019.xpertstec.local) and then select Operations Master.
43- Select the Change button.
44- then click Yes.
45- The active directory schema Operations Master successfully transferred then click ok.
46- Now confirm your current schema master which is Server2019 and then click Close.
47- Now run the Netdom query fsmo command, so we can now see that our roles have been moved to our Windows Server 2019 Additional Domain Controller.
48- Now change the DNS address of our additional Domain Controller server to be the IP address of our Windows Server 2019 Domain Controller server.
After completing Active Directory Migration, Now the ultimate step is to get rid of (uninstalling) server2008 Active Directory domain controller.
Remove Active Directory Domain Controller 2008
49- Open command prompt Type dcpromo and then hit Enter.
50- Click Next.
51- The Active Directory domain controller has the global catalog service, make sure your primary DC also has the service enabled and click on ok.
52- Confirmed that the delete this domain, because this server is the last domain controller in the domain, is UNCHECKED and then click next.
53- Type a password for the new Administrator account on this server and click next.
54- Review the remove active directory domain services Summary and click Next.
55- Check the Reboot on completion box to restart the server after the service has been removed
56- After rebooting server2008 DC. Now log in with the local administrator account and then open Server Manager.
57- In Server Manager click Roles under Roles Summary and click Remove Roles.
58- Remove active directory domain controller 2008 Roles wizard, click next.
59- Uncheck Active Directory Domain Services and DNS Server box and click next.
60- Click Remove.
61- Now click Close.
62- Do you want to restart now so click on Yes.
63- After rebooting server Log back to server2008, active directory domain services removal succeeded and click Close.
64- Disjoin the machine from the domain
Join to Workgroup
In the Server Manager, under Server Summary and click Change System Properties.
65- On the System Properties and click the change button.
66- Select Workgroup type in a workgroup name and then click on ok.
67- After leaving the domain Warning message so click ok.
68- Welcome to the workgroup and click on ok.
69- Click OK to restart the server.
70- System Properties, click Close.
71- Click Restart Now or Restart Later and shut down this server.
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