Hy all, this is my situation: 1 Domain, 3 site an 3 Replica Domain Controllers (one for site). The first DC is a Win2000 server SP4 (all 5 FSMO), two years ago I've added 2 DC with Win2003R2 (DC, GC, DNS). Now I'would like to change a win2000 DC with Win2008R2 DC. Can you explain to me the correct procedure? Thankyou AlbertoOaSysAlbertoOaSys

using Windows 2008 media You have to run adprep /forestprep adprep /domainprep /gpprep adprep /rodcprep install windows 2008 r2 using ntdsutil transfer all fsmo roles to windows 2008 depromote windows 2000 raise domain functional level (to 2003 native) raise forest functional level (to 2003)With kind regards Krystian Zieja http://www.projectnenvision.com Follow me on twitter My Blog

Hy Krystian, these command must be run only on the Win2000 server? adprep /forestprep adprep /domainprep /gpprep adprep /rodcprep Nothing to do on the other 2 DC win2003R2? Afther that I've to Join Win2008R2 to the domain? Do you have a link "step by step" for this operation? using ntdsutil transfer all fsmo roles to windows 2008 depromote windows 2000 raise domain functional level (to 2003 native) raise forest functional level (to 2003) Thankyou AlbertoOaSys AlbertoOaSys

1. Upgrade the schema using correct version of OS – Adprep a. http://technet.microsoft.com/en-us/library/dd464018(WS.10).aspx b. http://portal.sivarajan.com/2010/03/windows-2008-r2-adprep.html 2. Verify the schema version a. http://portal.sivarajan.com/2010/03/active-directory-schema-version.html 3. Install a new Windows 2008 server and join it to the domain. Perform DC promo and select “additional DC for an existing DC option” a. http://msdn.microsoft.com/en-us/library/ee797379(CS.10).aspx 4. If you are planning to decommission the old servers, you need transfer FSMO, DHCP etc a. http://support.microsoft.com/kb/324801 b. http://support.microsoft.com/kb/962355/en-us c. http://blogs.technet.com/b/networking/archive/2008/06/27/steps-to-move-a-dhcp-database-from-a-windows-server-2003-or-2008-to-another-windows-server-2008-machine.aspx Santhosh Sivarajan | MCTS, MCSE (W2K3/W2K/NT4), MCSA (W2K3/W2K/MSG), CCNA, Network+ Houston, TX Blogs - http://blogs.sivarajan.com/ Articles - http://www.sivarajan.com/publications.html Twitter: @santhosh_sivara - http://twitter.com/santhosh_sivara This posting is provided AS IS with no warranties, and confers no rights.

Run ADPREP from Windows 2008 CD. Make sure you are using the correct version of ADREP: http://portal.sivarajan.com/2010/03/windows-2008-r2-adprep.html You can read more info on this link - http://technet.microsoft.com/en-us/library/cc731728(WS.10).aspx Santhosh Sivarajan | MCTS, MCSE (W2K3/W2K/NT4), MCSA (W2K3/W2K/MSG), CCNA, Network+ Houston, TX Blogs - http://blogs.sivarajan.com/ Articles - http://www.sivarajan.com/publications.html Twitter: @santhosh_sivara - http://twitter.com/santhosh_sivara This posting is provided AS IS with no warranties, and confers no rights.

Hello, start with: http://msmvps.com/blogs/mweber/archive/2010/02/10/upgrading-an-active-directory-domain-from-windows-server-2003-to-windows-server-2008-or-windows-server-2008-r2.aspx Do you use Exchange in the domain: http://msmvps.com/blogs/mweber/archive/2010/05/23/exchange-server-and-it-s-relationship-to-active-directory.aspx Do not forget to reconfigure the time service on old/new PDCEmulator: http://msmvps.com/blogs/mweber/archive/2010/06/27/time-configuration-in-a-windows-domain.aspxBest regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

Refer to this Microsoft Guide about upgrading to Windows 2008 / 2008 R2 AD DS: http://www.microsoft.com/downloads/en/details.aspx?familyid=FA629DE2-F4DD-47AC-8D80-3DB46B2877A2&displaylang=en This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration

Thanks all!! Now is the time to study and next week I'll try the solution. Regards AlbertoOaSysAlbertoOaSys

Sure. Please let us know if you have more questions or need help from our side. Santhosh Sivarajan | MCTS, MCSE (W2K3/W2K/NT4), MCSA (W2K3/W2K/MSG), CCNA, Network+ Houston, TX Blogs - http://blogs.sivarajan.com/ Articles - http://www.sivarajan.com/publications.html Twitter: @santhosh_sivara - http://twitter.com/santhosh_sivara This posting is provided AS IS with no warranties, and confers no rights.

Hi, How's everything going? If you need further assistance, please feel free to respond back. Thanks.This posting is provided "AS IS" with no warranties, and confers no rights. Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Hy! I'm not ready, yet... I'm worry to destroy the enviroment.... Probably in the next two weeks I'll begin the work. Best regards AlbertoOaSysAlbertoOaSys

Hi, Thanks for your update. In this case, I would like to mark the suggestions as answer first to record their contribution. If you have any questions or concerns, or if you need further assistance in the future, you are welcome to post back here or create a new thread. Thanks.This posting is provided "AS IS" with no warranties, and confers no rights. Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.