Hello, My original grub.conf uses hd0,5 as device and /dev/VolGroup00/LogVol00 as root. The grub command "setup (hd0)" doesn't work. When I run "/sbin/grub-install hd0,5" or "/sbin/grub-install /dev/VolGroup00/LogVol00", the return is "The file /boot/grub/stage1 not read correctly". And the floppy disk led turns on and I hear the head moving. Thanks for your time, Vinicius.