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Need more information. &nbsp;Do you have Windows 2008 R2 installed on another server and your going to run the dcpromo on it. &nbsp;Or are you going to try and upgrade a existing server?
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Need more information.  Do you have Windows 2008 R2 installed on another server and your going to run the dcpromo on it.  Or are you going to try and upgrade a existing server?

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1. you have to prepare the domain only on one, as it is replicating over all domain controllers.<br />
2. it is not so important, but I would start with DC2 because of dhcp.<br />
3. I would firstly remove dc2 from domain (dcpromo), upgrade os, prep domain, join domain as DC2, check if replication is working properly, migrate dhcp to dc2, remove dc1 from domain, upgrade, rejoin, put dhcp on dc1 if necesarry. Maybe there are simplier steps...<br />
4. I don't thing there are any.
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1. you have to prepare the domain only on one, as it is replicating over all domain controllers.
2. it is not so important, but I would start with DC2 because of dhcp.
3. I would firstly remove dc2 from domain (dcpromo), upgrade os, prep domain, join domain as DC2, check if replication is working properly, migrate dhcp to dc2, remove dc1 from domain, upgrade, rejoin, put dhcp on dc1 if necesarry. Maybe there are simplier steps...
4. I don't thing there are any.

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Currently have 2 Windows 2003 R2 Std. Domain controllers and we are wanting to upgrade both to Windows 2008 R2 Standard.<br />
DC1 is AD, DNS, DHCP and WINS<br />
DC2 is AD, DNS and WINS<br />
<br />
My question is what are the steps? I see we have to prep the existing domain before the upgrade<br />
<br />
1) Does this need done on both current DC or just one and it will replicate?<br />
2) Should we do the primary DC (DC1) first then the DC2 box?<br />
3) Any special steps outside of the prep on the domain?<br />
4) Does DHCP, DNS and WINS have any specials needs?<br />
<br />
<br />

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Currently have 2 Windows 2003 R2 Std. Domain controllers and we are wanting to upgrade both to Windows 2008 R2 Standard.
DC1 is AD, DNS, DHCP and WINS
DC2 is AD, DNS and WINS

My question is what are the steps? I see we have to prep the existing domain before the upgrade

1) Does this need done on both current DC or just one and it will replicate?
2) Should we do the primary DC (DC1) first then the DC2 box?
3) Any special steps outside of the prep on the domain?
4) Does DHCP, DNS and WINS have any specials needs?




Upgrade of Windows 2003 R2 Standard DC to Windows 2008 R2 Standard DC

Windows Server 2003 was based on Windows XP and was released in four editions: Web, Standard, Enterprise and Datacenter. It also had derivative versions for clusters, storage and Microsoft’s Small Business Server. Important upgrades included integrating Internet Information Services (IIS), improvements to Active Directory (AD) and Group Policy (GP), and the migration to Automated System Recovery (ASR).

Windows Server 2003

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.