> I have to admit, I don't know how to interpret the dmesg results. Any
> obvious problems there?

None that I saw
>
> And I did add LBA32 to my lilo.conf which is supposed to allow lilo to
> bypass any cylinder limits on the hard drvie, but that didn't work
> either.

Adding linear might be worth a shot.
>
> I don't understand why lilo doesn't like the hard drive. Like I've
> said, it's worked fine, I made no changes to lilo and then suddenly
> the "LIL"... message popped up. Maybe I should consider using a new
> loader (i.e. GRUB?). Or will doing something with "udev" help?
>
Udev won't make any difference, but you may find it easiest to install grub
rather than trying to get lilo working.