I still don't know how this happened (even after I fixed it). Maybe someone else can enlighten me.
I have a multi-partition setup with grub2 as my bootloader. I restart my computer and it fails to POST ?!?!?!?! (black screen and freeze with NO feedback)
I remove the battery for a while, plug it all back up.
Finally get a BIOS warning, CMOS memory was corrupt; assumes default settings.
MYSTERY: Master boot record on my hard drive is now also corrupt?
Any method of attempting to boot from my primary hard disk failed. Had to rescueCD my grub2 setup, and then it works like a charm.
How does default CMOS = defunct grub?
My best guess is that CMOS stores an exact memory location on the disk, and that location was lost. I always thought CMOS pointed to &x00000000 on disk(0). Perhaps not.
Anybody else know what happened?