I've tried to update Ubuntu Server 12.04 to 12.10 on a dedicated server I'm renting, and now it won't boot off the HDD. Netboot with the same kernel works fine, and the same kernel that worked before the update doesn't work now, so it's not the kernel. All the kernels I've tried fail to boot from the HDD, but there are no problems with netbooting.
We built a kernel with netconsole and the NIC driver included, and here is the netconsole output. It does get up to a certain point, but then the messages abruptly stop. I don't see anything that stands out there.
How should I proceed with determining the problem?