dual-system: fedora 8 and Windows XP start up the computer, choose 'Windows XP', everything works well. restart the computer, choose 'fedora 8', got the following problem: "root (hd0,5) Filesystem type unknown, partition type 0x82" then I type 'e' edit the option 'fedora 8', change 'root (hd0,5)' to 'root (hd0,6)', then type 'b' to boot the system, everything works well too. However, when I restart the computer and then choose 'fedora 8' again. I still got the same problem, "root (hd0,5), Filesystem type unknown, partition type 0x82". How can I force the Grub to change "root (hd0,5)" to "root (hd0,6)"? Many thanks!