upgrading from AD 2003 to AD 2008r2.

trying upgrading ad 2003 ad 2008r2.  when  examining environment tried change domain function level (as test) , got message not because 1 or more servers @ domain funcion level 2000.  when got detailed info server name blank.  there 2 domain controllers in th domain.  both of them 2003 servers.  1 crashed , rebuilt.  fsmo roles on rebuilt server.<o:p></o:p>

 need function level 2003 so  can extend scema , install new domain controllers , transfer function.<o:p></o:p>

remember full backup of domain controllers nt backup before doing domain work.

http://support.microsoft.com/kb/322692/en-gb

i think need raise forest level first.

example: preparation tasks before level increase

in example, environment raised windows server 2000 mixed mode windows server 2003 forest mode.

inventory forest earlier versions of domain controllers.
if accurate server list not available, follow these steps:

1. to discover mixed level domains, windows server 2000 domain controllers, or domain controllers damaged or missing objects, use active directory domains , trusts mmc snap-in.
2. in snap-in, click raise forest functionality, , click save to generate detailed report.
3. if no problems found, option increase windows server 2003 forest level available "available forest functional levels" drop down list. when try raise forest level, domain controller objects in configuration containers searched domain controllers not have msds-behavior-version set desired target level. these assumed either windows server 2000 domain controllers or newer windows server domain controller objects damaged.
4. if earlier version domain controllers or domain controllers have damaged or missing computer objects found, included in report. status of these domain controllers must investigated, , domain controller representation in active directory must repaired or removed using ntdsutil file.

Windows Server  >  Directory Services