Big problems here.
There was a 2003 domain controller 'server2009'.
Raised from 2000 to 2003 functionality level, adprep ecc.
Added dc1 on windows 2008 r2 with dcpromo.
Added a RODC "dc2zentyal" (zentyal not windows, hence read only)
Demoted server2009, rebooted, renamed to oldserver2009 = no more 2003 dc with new name.
Domain was fine working on dc1.
Then we renamed dc1 to server2009, using netdom computername dc1.domain.local /add:server2009.domain.local
Tried a /makeprimary and remove. Both failed with reason: "" (no reason)
But the only rw domain controller now has hostname server2009. Unfortunately the domain does not work, netlogon does not start error 0000064.
Tried a dns clean up renaming any occurrance of dc1 to server2009
dcdiag /fix states still dc1, failed connection to dc1.
Currently no domain controller is reachable.
dc2zentyal had completed the replica but is now disconnected before it gets screwed up too.
So I have:
a non working dc1.
no backups of system states of a working dc1,
a rodc dc2zentyal,
a demoted and renamed server2003,
a bks ntbackup system state from one month ago (no important changes). should I remove DC1 new and restore system state on the old demoted dc so it comes back as a normal dc and start over? Would that work?
What can I do? And what was wrong in renaming the dc? Should I have had another extra dc as global master ecc?
Here there are no lab procedures and no test envirnoments unfortunately, just a situation to fix