Well… today I had a power outage at my house, and my Hyper-V lab was shut down abruptly. When I brought the computer up again my hosts had crashed, and my domain controller was stuck in a rebooting loop with this:
Your PC ran into a problem and needs to restart. We’re just collecting some error info, and then we’ll restart for you. (0% complete). If you’d like to know more, you can search online later for this error: 0xc00002e2)
Ouch…. this isn’t good, as this is my only domain controller in the lab currently and I deleted my VM snapshots when troubleshooting a previous issue (d’oh).
As expected, the computer reboots and launches the new 2012 recovery console. It gives me usual options for safe mode & command prompt as well as system restore… I don’t have any system restores, and launching the command prompt and selecting sfc /scannow does little to help.
I started looking at the VM config in Hyper-V Manager, checking the RAM & CPU values, the IDE controller settings are normal (but I detached the ISO I had mounted to the DVD drive just to be safe). Everything else looks fine….
Then I noticed that the SCSI controller option has a hard disk listed, with no VHD mounted. I was playing around with this a week or so ago & hadn’t realised that I’d left this setting applied.
So I shut down the host, removed the SCSI config, hit the start button and crossed my fingers…. and now it’s back in action. A quick snapshot because hindsight is 20/20, and it’s goodnight from me. Tomorrow I’m building a second DC…