Domain (Active Directory) migration from server 2008 r2 to server 2012 r2
We will migrate Windows Server 2008 r2 domain to Windows Server 2012. The construction of the domain running on Windows Server 2008 R2 will move into Windows Server 2012 r2 server.
Prerequisites
The user account we will use must be a member of the groups below to accomplish the task:
- Enterprise Admins
- Schema Admins
Our Topology
- Server 2008 r2 – 192.168.6.35
- Server 2012 r2 – 192.168.6.40
Note: I would definitely recommend you to take a backup of AD before the start of transition and FSMO roles in the transport process.
Other
Both servers also we are sure to turn off the firewall, date & time settings must be checked.
Steps
Then, Let’s get started:
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428395514760/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim1.png
Server 2012 r2 installed on the server we include our domain, we restart the server.
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428395532778/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim2.png?height=730&width=741
Once you logon on our server with a domain account, Server Manager Console from Manage-> Add Roles and Features we choose.
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428395560158/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim3.png?height=572&width=804
We continue with the next.
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428395610400/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim4.png?height=568&width=803
Choose role-based installation, we continue with Next.
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428395635109/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim5.png?height=569&width=803
Select the server to do the installation, we continue with Next ..
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428395671982/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim7.png?height=569&width=803
We choose the Active Directory Domain Services Role on this screen.
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428395696517/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim6.png
It is stated to be added to the role connected components, we choose the Add Features
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428395714124/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim8.png?height=576&width=805
Features screen appears we continue with the Next.
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428395738669/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim9.png?height=572&width=802
In the Information screen, we continue with the next.
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428395764944/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim10.png?height=577&width=805
We start the installation by clicking the Install button.
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428395791143/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim11.png?height=571&width=806
We show the continuation of the installation process.
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428395820388/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim12.png?height=570&width=800
When we see “Installation succeeded on "servername.domain", we have completed a successful installation.
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428395847142/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim13.png?height=720&width=756
We are opening from a warning message from the Server Manager console and "Promote this server to a domain controller" we choose.
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428395879138/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim14.png?height=574&width=781
Building on our existing Domain Server 2012 r2 as we add to our server for Additional Domain Controller, "Add a domain controller to an existing domain" option selected, we continue with the next.
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428395899850/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim15.png?height=579&width=781
We need to install the DNS and Global Catalog server roles to our server as follows:
Site Name: Default-First-Site-Name selected
DSRM password: Here we will define the password to maintain the absolute case of an Active Directory restore will use this password.
Continue with the next
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428395928113/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim17.png
On this screen, we choose the server where the replication process will start that makes the new Domain Controller, so select "Any domain controller" if we continue to set the system to replicate the best controller. Next the best possible control.
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428395983674/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim18.png
Active Directory Database, Log Files, we show where to keep the SYSVOL files, we continue to remain under Microsoft's C drive. Continue with Next.
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428396042956/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim19.png
It automatically prepares Schema as well as domain as new server 2012 R2 features continue with Next on this screen.
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428396065667/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim20.png
The screen can display the settings that we have done so far, we continue to check and Next.
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428396084128/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim21.png
If the installation is prior to this point done correctly then you can’t continue with Installation. So you need to correct the Errors on this screen. Choose Install to start error correcting procedures..
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428396113055/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim22.png
Server 2012 r2 installation is completed then we restart the server in our domain.
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428396134437/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim23.png?height=607&width=815
we see our new server added when we check Active Directory-> Domain Controllers OU.
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428396156844/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim24.png
I open the CMD console, we check that the server or servers on which the FSMO roles. (I'm on a single server environment), we command by;
netdom query fsmo
All the roles that I see on my environment SERVER 2008.
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428396176321/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim25.png
All FSMO roles we have established a new and Additional Domain Controller will carry on as we add Server2012 R2.
cmd > ntdsutil> roles> connections > connect to server sunucu2012.burak-ugur.com You must write your own server, your name, and domain name)
After connecting;
server connections: exit with q
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428396202627/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim26.png
** **
Fsmo maintenance: Transfer infrastructure master
Continue with Yes
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428396226301/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim27.png
Fsmo maintenance: Transfer naming master
Continue with Yes
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428396245186/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim28.png
Fsmo maintenance: Transfer PDC
Continue with Yes
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428396265180/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim29.png
Fsmo maintenance: Transfer RID master
Continue with Yes
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428396290765/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim30.png
Fsmo maintenance: Transfer Schema master
Continue with Yes
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428396306968/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim31.png
Finally, we see the Results screen.
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428396321952/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim32.png
When we check with netdom command for the all FSMO roles, we see that they’re all transferred to the new SERVER 2012 domain controller.
https://sites.google.com/a/burak-ugur.com/burak-ugur2/_/rsrc/1428396338910/Active-Directory/active-directory-migration-from-server-2008-r2-to-server-2012-r2/resim33.png?height=613&width=901
In order to verify how successful we did the whole process, we go to the AdsiEdit à Schema à Right Click à Properties to open the Object-Version, if it’s 69, then we succeeded because it’s the correct value for Server 2012 R2
Thus our migration process is now completed.