If you can't restore from a backup then just nuke and pave - on one of your other DCs use this technet article to remove the necessary data from the directory and DNS - http://technet.microsoft.com/en-us/library/cc736378%28v=ws.10%29.aspx
Nathan Shelby Lead Systems Engineer – Quote Wizard <https://quotewizard.com/> [email protected] / 206-753-2626 Malo Periculosam Libertatem Quam Quietum Servitium On Tue, Jan 20, 2015 at 12:44 PM, Jim von Stein <[email protected]> wrote: > 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] <[email protected]>* > > > > *Kairos - The moment when change is possible* > > www.kairosnw.org > > >
