grub

[mike miller]

I was dual booting winxp and fc6 until the motherboard died.  I replaced it, 
using the same cpu, memory, hard drives and other peripherals.  I was 
pleasantly surprised to see the grub menu when I first booted but the linux 
default boot failed.  Trying again I found that XP worked fine, only needing 
a couple of driver updates.  After reinstalling FC6 everything was back in 
working order until I got the message about the 282 security updates.  I 
pared that down a bit, thinking that I'd do the rest another day.  The 
update finished normally and requested a reboot.  On the reboot the screen 
froze at GRUB. Nothing about stage 2 and no input from the keyboard had any 
effect except <ctrl><alt><del>.  I tried everything that I could think of 
including reading the sections on grub in Linux in a Nutshell and Linux 
Annoyances and running grub from the command line.  There were several 
suggestions on how to recover but I couldn't make any progress with them. 
Using the windows xp install disk to fix the mbr didn't help, nor did 
reinstalling FC6.  I finally got both xp and fc6 to run normally by burning 
a copy of super grub disk and booting off of that. The repair features of 
sgd were unsuccessful however.  The grub.conf file looks normal and I'm not 
getting any error messages.  Any suggestions on which files I should be 
looking at for errors?

Thanks
Mike Miller