Most crashes on a Mac affect just one application. But you may encounter a type of system-wide crash that brings down your entire Mac: a kernel panic. When this occurs, there’s no warning and no way ...

Kernel panics on subsequent startup, fix A few users have reported serious startup problems after applying the Broadband Tuner patch -- likely not directly resultant from the changes made by the ...

The only thing I can really add here is to make sure you know your partition scheme... including what (if different than your normal "/" partition) partition your /boot directory with your kernel is ...