Here’s footsteps for you to migrate it to 2012 server-:
Setting plot.
1.
Initially install windows
server 2012 R2.
2.
Complete step by step: add a
window server 2012 R2 domain controller to an existing windows server 2003
network.
1.
Start this process by opening
the Active directory users and computers built
on your new windows server 2012 R2 computer.
2.
Now, just right click your
domain and select Operations masters given in
sub-menu.
3.
Then in Operation masters windows, ensure the RID tab is selected.
4.
At right side, look for change option and select it.
5.
Now you will asked about
transferring the operation master role, select yes for it.
6.
Click on OK to continue, after the operations master role has
successfully transferred.
7.
Now guarantee the operations
master box and your new 2012 R2 window server.
8.
Take over steps 4 to 6 for the
infrastructure tabs and PDC.
9.
After completion, just click Close to close the Operation
masters window.
10.
Now close the Active directory users and computers windows.
1.
Again, open the Active
directory users and computer built on your new windows server 2012 R2 computer.
2.
By right clicking on your
domain select Operations masters given in
sub-menu.
3. Select the Domain controller or AD LDS instance
from Change directory server window.
4.
Here’s your new 2012 R2 windows
server, just select it.
5.
To continue click OK.
6.
Comeback to the Active directory domain and trusts window to look over
the active directory domain and trusts found in the folder tree on left hand
side to assure the server so to reflect your new 2012 R2 windows server.
7.
Now by right clicking active directory domain and trusts found in the folder
tree select Operation manager in sub menu.
8.
Click Change
to transfer the domain naming master role to 2012 R2 windows server in Operation master window.
9.
Click yes if you like to transfer
the operations master role to different computer, when asked.
10.
Click ok to continue after the operations master is successfully
transferred.
11.
Now click the Operation master window.
12.
Also close the Active directory and trusts console.
Changing the Schema master.
1.
Go for opening a command prompt
in administration view on your new windows server 2012 R2 computer.
2.
Type regsvr32 schmmgmt.dill
,hit enter on the command prompt window.
3.
Now click Ok to close the
Regsvr32 window.
4.
Just close the command prompt
now.
Add the active directory schema console
from MMC.
1.
In new window server 2012 R2 computer a MMC
console.
2.
Click File>Add/Remove
snap in…
3.
Then select Active directory schema and click the Add>button in Add or Remove snap-ins window.
4.
Click Ok to continue.
Change the schema master.
1.
Just in the same MMC, select Change Active directory domain
controller by right clicking active directory
schema.
2. Now select This domain controller or AD LDS instance in the change
directory server.
3. Select your new 2012 R2
windows server.
4. To continue click ok.
5. Now a warning will be seen
stating you that the active directory schema snap-in not connected. Ok to
continue.
6. Look for the Active directory schema folder in folder tree to ensure the
new window server 2012 R2 computer is shown.
7. Do right click on Active directory schema folder in folder tree to ensure the
new window server 2012 R2 computer is shown.
8. In change schema master window, click change for transferring the schema master role to 2012 R2 window server.
9. Click yes if you are sure
to transfer schema master role to different computer.
10. Click Ok after schema master is successfully transferred.
11. Now close the Change schema master window.
12. In the MMC, click File>Exit.
13. Click no, when ask to save
console.
After
completion just open the active directory users and computer console to verify
that the active directory database successfully replicated to your new windows
server 2012 r2 computer. take care of data base replication as it may take some
time depending on number of objects in active directory.
Removing the 2003 windows server from the
global catalog server.
1.
Now just open Active directory sites and services on your new
windows server 2012 R2 computer.
2.
Now expand site folder, then the default-first-site-name
folder, then the server’s folder.
3.
Expand both listed server.one
should be your new 2012 windows server and other should be 2003 window server.
4.
Now right click NTDS settings found under your old 2003 windows
server.
5.
Select properties
in sub-menu.
6.
Under general
tab, after unselecting global catalog.
Just click the apply button.
7.
Click ok
to continue.
8.
Now close the Active directory sites and
services windows.
9.
Prefer to verify that your new
2012 R2 window server is running the FSMO role by opening the command prompt in
administrative view and running given command :Netdomquery
Fsmo.
10.
Now in Network
and sharing centre, do not forget to change the preferred DNS server to
match alternate DNS sever, then delete the IP address listed under the
alternate DNS server. It currently be pointed to old 2003 window server.
