> BIOS is not the problem as I was able to successfully boot several times > with the exact same BIOS without any problems. This proves nothing. The fact that you can boot a few times straight after a fresh install, *before* any updates only proves that during the initial install the contents of /boot are created at a point that 'just happens', through luck, to place them on disk at a position your bios can read. The fact that subsequent updates result in booting failure, are consistent with the updates (in /boot/) are being written to a place your bios cannot access, for whatever reason. This is because if /boot is just a regular folder, the system is free to write files in that folder to whereever the hell it likes on the disk, within the partition for / - if / happens to span to regions outside those your bios can read, you are basically play Russian roulette with your boot files. There is a finite probably any file will or won't be written to a place your bios, and thus grub, can read. Chris
