I just finished fixing this same problem on my box. It had to do with Grub. Boot either the rescue CD or Knoppix, navigate to your HD (probably under /mnt/sysimage (Recuse disk) or hda,b, or c (Knoppix)) and $ nano /etc/grub.conf. There should be a line(s) like this:
Code:
title Fedora Core (2.6.9-1.667)
root (hd1,0)
kernel /vmlinuz-2.6.9-1.667 ro root=/dev/VolGroup00/LogVol00
Change the bold part to:
Code:
title Fedora Core (2.6.9-1.667)
root (hd1,0)
kernel /vmlinuz-2.6.9-1.667 rw root=/dev/VolGroup00/LogVol00
of course, if you did't format the drive with VML, then root will = something else, but the ro/rw should be the problem
