I have a headless server running the latest Ubuntu Server 12.10. It does not have any GUI at all.
I am having the same issue that others are having which is that when you boot or reboot without a monitor (headless) the computer does not boot. The solution presented to others was to edit their xorg.conf file.
I installed catalyst, so I needed to downgrade to xorg-server-1.11 from xorg-server-1.12. Now I use the [xorg111] repo and I understood that because of the udev, which works for the new xorg-server I have to recompile it. I don't really know how to recompile it so it works with it.
There are 2 ways to achieve this:1. SSH into the headless KVM server from a desktop machine and ensure X forwarding is running. Then use virt-manager on the headless server, with the di... [by simon_matthews]
So, I noticed there's about a 10 minute drift on my VM hosting server from what time it's supposed to be. In traditional environments, I would just restart the system (and change the BIOS time if necassary).