During a recent Exchange 2010 corrupted upgrade to SP2 I had to result to rebuilding a server and doing a DR install via the /m:recoverserver option. Unfortunately, the drive that contained the Exchange installation files and DB files (D: Drive) was formatted during the reinstallation of the server. What this resulted in is Exchange thinking that the default mailbox database and public folder database still exists on D:, which it does not. I cannot remove either of these databases via the EMC.
If a mailbox database and public folder database doesnt physically exist on the drive that Exchange thinks it does, how do you properly manually remove them? Where is the EMC pulling it's data from that makes it think that these mailboxes exist on D:? Is this coming from AD? Do they just need to be deleted from AD via adsiedit or is that going to create a larger problem?
A second and side issue to this botched /recoverserver install is that this same machine is the bridgehead server for co-existence routing to 2003 and I fear that is not correct since all of the setup files from D were lost prior to running the /recoverserver. Ultimately, I would like to move that role to the other Ex2010 box and do a clean uninstall and reinstall of Ex2010 on this corrupted machine.