Its not a big deal to nuke and pave it. Here's one resource on that, but there are many out there: http://www.petri.com/delete_failed_dcs_from_ad.htm I've had to do this a few times with no ill result after the fact. Always better to get it demoted cleanly though, have you tried using a usb network card or even a wireless usb stick just to get it on the net? -Greg
From: [email protected] [mailto:[email protected]] On Behalf Of Jim von Stein Sent: Tuesday, January 20, 2015 12:44 PM To: 'NT SysAdmin List ([email protected])' Subject: [NTSysADM] Domain Server down I seem to have a catch-22 situation. We applied the windows updates to our servers Sunday, and one of them rebooted with major problems. The OS network settings appear to be seriously borked - no network connectivity and the settings keep disappearing, particularly the default gateway. All the diagnostics seem to point to the NIC working correctly, but it's not talking to the OS. It would appear something critical is corrupted. HP DL360p Gen 8, Windows Server 2008R2 standard, domain controller (1 of 3 - no FSMOs). HP sent me a replacement NIC - no change. I've tried to do a repair install of 2008R2, but haven't managed to find the starting point for that - complicated by the fact that there's no optical drive on the server, so I'm trying to boot a UBS stick. I can't dcpromo the server to remove it from AD without the network. There's nothing critical on this server, so I could just nuke and pave, but how much weirdness will result from not being able to demote the (now ghost) DC? Do I need to manually remove it, and if so, how? Jim von Stein Information Services Administrator Kairos (formerly SOASTC) 1750 SW Nebraska Ave. Grants Pass, Oregon 97527 (541)476-3302 ext. 3203 [email protected]<mailto:[email protected]> Kairos - The moment when change is possible www.kairosnw.org<http://www.kairosnw.org/>
