This has happened before on this server; last time a System Restore off tape backup fixed it.
The server is a DC with GC. Fortunately it's not the most important server in the organisation.
Error this morning:
Security account manager initialization failed because of the following error. Directory service cannot start. Error Status Oxc00002e1. Please click OK to shutdown this system and reboot into directory service restore mode. check the event log for more details information."
Error after restore of System State from tape:
Directory Services could not start because of the following error: A transaction recover failed.
Error Status: 0xc0000227. Please click OK to shutdown this system and reboot into Directory Services Restore Mode, check the event log for more detailed information.
I have tried going back a few days with tape restores but to no avail -- same error.
The restore from tape gives the following errors in the Directory Services Log:
Source NTDS Backup, ID 2055
The database restore operation failed.
dRestore, corruption was detected in a backup set during hard restore
Source NTDS Backup, ID 1198
Internal error: Active Directory failed to restore from backup media.
On reboot the Application Log gives the following error:
Source ESENT, ID 463
lsass (396) Restore0001: Corruption was detected while restoring from backup logfile C:\WINDOWS\NTDS\edb0003B.l
og. The failing checksum record is located at position END. Data not matching the log-file fill pattern first appeared in sector 2304 (0x00000900). This logfile has been damaged and is unusable.
Running ntdsutil files integrity gives the following error in the Application log:
Source ESENT, ID 455
NTDS (1124) Error -1811 (0xfffff8ed) occurred while opening logfile C:\WINDOWS\NTDS\edb.log.
Running ntdsutil files recover gives the following error in the Application log:
esentutl (2804) Error -1811 (0xfffff8ed) occurred while opening logfile C:\WINDOWS\NTDS\edb.log.
I cannot boot the server into normal mode.
So I cannot run dcpromo to demote it and then re-promote it.
appears to be the worst written article I have ever seen! I can't make head nor tail of it. It doesn't appear to be the precise error I have anyway.
is better but again isn't a perfect match by any standards.
I could do with getting the server up and running again. The domain itself matters a great deal, but this is one of 4 DC/GC on this domain, thankfully...
Any help would be most appreciated.