Windows Server 2008 to Server 2008 R2

I realize server 2012 is out there but corporate hasn't approved it and though I do not think my question is possible, I figure I ask the experts for a second opinion.

We have 2 Domain Controllers on Windows Server 2008 32bit. 1 is a VM with FSMO roles/DNS/DCHP/NTP.  The other is physical just with DNS

I've been the task to upgrade from server 2008 to server 2008 r2.  I know 2008R2 is 64bit.  Is it possible to do an in place upgrade when our current servers are running server 2008 32 bit?  

What would be the best upgrade path?  
Create another VM with Server 2008R2 transfer FSMO/DNS roles then recreate the physical server with server 2008R2 and finally the other VM DC but transferring DCHP/NTP to the new VM DC?

Any suggestions welcomed
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Lee W, MVPTechnology and Business Process AdvisorCommented:
Is it possible to do an in place upgrade when our current servers are running server 2008 32 bit?  
No, it is not possible to go from 32 bit to 64 bit in-place.

Best path EVEN IF YOU HAD A 64 BIT DC is to ADD a new 2008 R2 DC and MIGRATE to the new DC.  CHANGING the name, and IP.  You can export and import DHCP and OPTIONALLY if you want to rid yourself of 2008 (non R2) you can transfer the FSMO roles and demote.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
ozzalotAuthor Commented:
Lee thanks for your reply. I didn't know you can migrate DHCP.  Any links that can provide some good info?
Lee W, MVPTechnology and Business Process AdvisorCommented:
Started with a google for Export DHCP 2008 -

More About Exporting and Importing the DHCP Database

As always, if you're not familiar with a technology or procedure you should learn it first in a test/learning environment or hire a professional and pay attention to what they do.
ozzalotAuthor Commented:
Thank you for you reply Lee and your help.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Windows Server 2008

From novice to tech pro — start learning today.