Mail hidden required. MVP for Directory Services in the years Can be that you got an error during demoting at the beginning, then uncheck the Global catalog on that DC and try again — check the DNS management console, that all entries from the machine are disappeared or delete them by hand if the machine is off the network for ever — also you have to start AD sites and services and delete the old servername under the site, this will not be done during demotion.
Master Tech on 18 Feb at Jeff on 04 Apr at Jude on 05 Apr at Smithg76 on 24 May at Improve this answer. Joe Doyle Joe Doyle 1, 14 14 silver badges 15 15 bronze badges. Here is a TechNet guide.
Probably a good place to start. Adam Adam 3 3 silver badges 8 8 bronze badges. The steps: Install on the new server. DCpromo the new server.
Make sure AD is replicating. Make sure DNS is replicating. Move DHCP to the other server. Make sure it is working. Move the FSMO roles to the new server.
Once you are sure that all roles and services that the server is using have been moved and are working properly on then you can proceed with the DCPromo demote of the server. Daniel Lucas Daniel Lucas 1, 1 1 gold badge 14 14 silver badges 25 25 bronze badges. So here is what I would do.
Is your Win your only server? If yes, then I would do the following, Install the new Windows on the new hardware DCPromo it to become a domain controller Assign any shares etc to it. Carry on working. Massimo Massimo Sign up or log in Sign up using Google.
I checked adprep. I gonna put shared folders with data and sites here from and throw it away. So, how can I do it best? Is it rigth: At nigth, copy all data and re-create shared folders on the new server, swicth off and rename to name? And what would be with users, which synchronize their data with server?
EXE can help you out there. Check out Microsoft Knowledge Base Article It was since previous server crash — nobody saved AD, then AD was created from the beginning, some computers were just rejoined to the domain, others not. Those users which are not rejoined still can log on, but I see the event on the server:.
SID for the domain. Reestablish the trust relationship. The problem is: I can simply rejoin those computers Microsoft's answer. But in this case I would have so much problems — because new profile will be created and I must move all staff and mail and funny things… on each computer. And speak with blond girls and explain them things …. So, is there a way to restore those "trust relationships" between computers and new server without troubles?
The only problem you seem to be experiencing is the loss of user profiles. I'll assume you're the one changing the domain membership of the computer and you don't have any roaming profiles.
This will restore the user profiles. Now you can ask these blond girls meaningful questions instead of merely fixing their computer troubles. The next is a spare Windows Server problem: I bought second server to make it spare.
I plan to copy automatic replication AD on it only for emergency. If first server crashes — users can logon using another one. I can quickly restore data from backup, …. But when I try to install AD on it using dcpromo. When adjust setting in dcpromo I use: logon of domain administrator and password, check "Add to existing domain", Global Catalogue. You can use the HowTo Jorge wrote to check forestprep and domainprep succesfully replicated to all Domain controllers.
Thanks for a well thought out and structured outline. I feel a bit better now that I read this. Messing with AD is not something for the faint-of-heart. These are your current Windows Server Domain Controllers. You can use trial media of Windows Server for this purpose, if need be. Also, when you copy adprep to a local folder on your Domain Controller, be sure to copy the whole folder containing adprep. When i'm trying to run adrep from win2k3 server source i got an error.
I don't have a blogpost in this series on the 'migrating' scenario. Huge differences between networking environments and their impact on the migration process make that an impossible blogpost to write. Note: Although the downloadpage talks about version 3.
Hoping to find an article that at least outlines all the areas to consider so I don't screw it up!! I did one guide for in-place upgrading Domain Controllers on this blog , but I no longer recommend in-place upgrading Domain Controllers because of issues in the past.
Here's a list with some of these issues:. The information on this website is provided for informational purposes only and the authors make no warranties, either express or implied. The screen Get important updates for installation gives you the option to either go online and get the latest updates for installation or to skip going online.
I recommend choosing Go online to get the latest updates for installation recommended , since Microsoft might enhance the Windows Server installation wizard by adding additional support for drivers and scenarios. Note: These updates are not related to the updates your accustomed to receive through Windows or Microsoft Update. These updates relate to the Windows Server Installation process only. Microsoft may choose to enhance the installation experience between Service Pack releases.
Depending on your media type you will see the Type your product key for activation window. If you do, simply type your Windows product key and tick the Automatically activate Windows when I'm online option. In the Which type of installation do you want window select Upgrade. The Compatibility report window will be displayed telling you what hardware might not function once upgrade is completed , also to check with software vendors to check if their software are compatible with Windows Server The Installation wizard will now perform an in-place upgrade of your Windows Server Domain Controller.
After multiple restarts, the Upgrade process will be completed and you will be able to start using your Windows Server Your upgrade might take hours to complete. Upgrading additional Domain Controllers in place is as easy as repeating the steps for in-place upgrading the first Domain Controller.
After you've successfully upgraded the last Windows Server Domain Controller for a specific domain or you don't feel the need to ever add pre-Windows Server Domain Controllers to your Active Directory environment you're ready to raise the Domain functional level of that domain. Upgrading the domain functional level to Windows Server adds the following features to your environment:.
Note: Raising the functional level is a one way procedure. Once you've raised your domain functional level there's no way to return to the previous domain functional level. Raising the domain functional level in Windows Server looks remarkably similar to raising the domain functional level on Windows Server :. After you've successfully raised the domain functional level of all the domains in your Active Directory forest you're ready to upgrade the Forest functional level.
This will not add any features, but will result in all domains that are subsequently added to the forest will operate at the Windows Server domain functional level by default. Once you've raised your forest functional level there's no way to return to the previous forest or domain functional levels. In my mind in-place upgrading is more tricky than transitioning your Active Directory environment.
If at all: it's the same amount of work. With transitioning you need to perform the right steps at the right time. With In-place upgrading you need to check more prerequisites before you can actually slap in the disk. With transitioning being inevitable since hardware ages and 64bit computing looming on the horizon I feel In-place upgrading is the right migration scenario only on rare occasions.
Please note however Microsoft supports in-place upgrading many Active Directory technology specialists do not recommend upgrading Domain Controllers. When i'm trying to run adrep from win2k3 server source i got an error. Adprep encountered a Win32 error. Error code: 0x2 Error message: The system cannot find the file specified..
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