• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 1110
  • Last Modified:

How to upgrade AD from W2K3 R2 to W2K8 R2?

This is using a single DC with W2K3 AD. My management is planning to buy a new server, and ask to me to deploy a W2K8 R2 DC on it. Ultimately, we already want to migrate the AD into W2K8 environment. That means at the end of the project, we have this new server as W2K8 R2 DC, the existing server still a W2K3 secondary DC. Shall I setup this server with w2k8 r2 and then promote it as DC? any forest/domain prepare should I perform?

thanks in advance!
5 Solutions
David Paris VicenteSystems and Comunications  Administrator Commented:
Here goes a step by step from: Upgrade

hope this could help you.
Seth SimmonsSr. Systems AdministratorCommented:
here is a good guide


the links above refer to 2008, not R2 which has slight differences or describe an in-place upgrade which is not what you are looking for
Problems using Powershell and Active Directory?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

Mohammed TahirCommented:
Yes you have to run adprep /forestprep to update the schema version before adding Windows 2008 R2 as Domain controller.

1- Forest schema version 47: Windows Server 2008 R2 Adprep /forestprep.

2- How to migrate Windows 2003 Active Directory to Windows 2008 Active Directory

Oops ! Sorry  I forgot to add link in my comment

See the assisted and accepted solution here http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Q_26360540.html

Try those troubleshooting steps
MezzutOzilAuthor Commented:
After reviewing the docs, all are very good. The upgrading  activity is proposed on October, and I am confident to get it done.
Hi Which solution in this article made your day ,can you please clarify was it a firewall issue or some other. ? We need to know what was exactly happened and how you tackled the issue
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now