Installed 64bit from livecd. Works perfectly as installed with generic kernel. Installed PAE kernel via apt-get and upon reboot get:
Failed to execute /init Kernel panic - not synching. No init found. Try passing init= option to kernel. Pid = 1, comm: swapper/0 Not tainted 3.2.0-24-generic-pae #39-ubuntu
So I can boot fine with an Intel p4 64bit into a 32bit kernel or a 64bit kernel, but when I try a pae kernel I get a kernel panic. How do I get the pae kernel to run?
I am trying to get the system to recognize the full amount of installed memory (6g) versus what it is seeing installed (3.2g). Bios sees full 6g installed.
Update: Meh. Seems after all is said and done the whole thing was caused by a bad stick of ram.