ma devo modificare sia lilo che grub? o posso mettere solo uno dei due come bootlaoder e modifico solo quello?

a me c'è grub come bootloader, e queste sono le stringe nei vari file di testo:
/boot/grub/device.map

(hd1) /dev/hdb
(fd0) /dev/fd0
(hd0) /dev/hda

/boot/grub/menu.list

# Modified by YaST2. Last modification on lun ago 1 12:52:43 CEST 2005

color white/blue black/light-gray
default 0
timeout 8
gfxmenu (hd0,6)/boot/message

###Don't change this comment - YaST2 identifier: Original name: linux###
title SUSE LINUX 9.3
kernel (hd0,6)/boot/vmlinuz root=/dev/hda7 vga=0x317 selinux=0 splash=silent resume=/dev/hda5 showopts
initrd (hd0,6)/boot/initrd

###Don't change this comment - YaST2 identifier: Original name: SUSE LINUX 9.3 (/dev/hda6)###

title SUSE LINUX 9.3 (/dev/hda6)
kernel (hd0,5)/boot/vmlinuz root=/dev/hda6 vga=0x317 selinux=0 splash=silent resume=/dev/hda5 showopts
initrd (hd0,5)/boot/initrd

###Don't change this comment - YaST2 identifier: Original name: floppy###
title Dischetto
root (fd0)
chainloader +1

###Don't change this comment - YaST2 identifier: Original name: failsafe###
title Failsafe -- SUSE LINUX 9.3
kernel (hd0,6)/boot/vmlinuz root=/dev/hda7 showopts ide=nodma apm=off acpi=off vga=normal noresume selinux=0 barrier=off nosmp noapic maxcpus=0 3
initrd (hd0,6)/boot/initrd

/etc/grub.conf

setup --stage2=/boot/grub/stage2 (hd0) (hd0,6)
quit