Have a SBS2003 that at some point was upgraded from SBS2000; approx 10+ year old hardware. SBS is no longer needed/desired. Plan on adding new server running Server Standard 2008R2, DCPROMO, seize FSMO roles and use as root DC, and retire SBS2003 server. ADPREP is apparently failing qwith no error messages. Following info discovered and tasks performed.
Found SBS2003 forest/domain functional level at Server2000. Manually upgraded to 2003 thru AD Domains & Trusts. Level now shows 2003 for both. Restart server. Run ADPREP32.exe from Server2008R2 disk. Forestprep, domainprep, and gpprep all indicate they ran successfully. Restart server. Verify functional level thru AD Domains & Trusts - shows forest/domain at 2003. Attempt to manually upgrade to 2008 and receive message that both forest and domain are at highest functional level. Attempt to run ADPREP32 again and receive messages that forest, domaion, and group were already succesfully upgraded.
Can I manually raise server to 2008 functional level so I can DCPROMO new server? SBS2003 is only Domain Controller. An existing server running 2008R2 and the the new server running 2008R2 are both Member servers.