Another tech made some changes to the registry, and this server would not start a bunch of essential services such as DNS, AD, or MS Exchange, so we though we would do a full recovery from the SBS backups that run each night.
After running a complete recovery by booting off the SBS2008 server CD, and attaching the USB backup HDD, the server now is in an endless reboot loop.
The HDD setup is LSI raid, on-board, SAS HDDs. I installed the RAID drivers from the motherboard CD during the windows setup screens for bare metal recovery.
I have tried a few different times now, but each time, the recovery completes successfully, then the system reboots normally and yet it never will boot, safe mode, last known good config, all have been tried.
Any ideas anyone? I am fresh out!!