Man!!! I've been fighting with this problem for a WHOLE DAY!!! I am getting Error status 0xc00002e1 on one of my DC (also my Exchange server). After reading and following the instructions in this article article: http://support.microsoft.com/default.aspx?scid=kb;en-us;258062
for the entire day, I've finally decided to give up.
I cannot even perform the "dcpromo /forceremoval" per their instruction, because... you guess it... you cannot perform dcpromo in "safe mode" or "directory restore mode"... Of course, you cannot get into the normal mode until you either fix the problem or remove AD!!!!
Anyway, my question is this... I DO NOT have a backup of my A/D, but I DO have, however, a working Domain Controller. Is there a way for me to restore my configuration on my broken DC FROM the good one?