TITLE    : Configuring the grub boot loader
OS LEVEL : Linux (any version)
DATE     : 27/11/2003
VERSION  : 1.0
AUTHOR   : Hubertus A. Haniel (hubba@unixcook.com)
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Assuming you already have grub installed on your system and /boot is part of 
your root filesystem you would use the following steps to configure your
system to boot using grub.

Execute "grub" to drop into the grub shell and use the following commands to
setup grub on the Master boot record (first disk of the system):

Set the root partition (first disk, first partition):
grub> root (hd0,0) 
Install the boot record on the MBR:
grub> setup (hd0)
Leave the grub shell:
grub> quit

If you don't want to install grub on the MBR (master boot record) and if root 
would be on the second partition on the same disk the commands would be be
altered in the following way:

grub> root (hd0,1)
Put the boot record on the second partition:
grub> setup (hd0,1)
Leave the grub shell:
grub> quit



Now you will have to create your /boot/grub/grub.conf or on later versions the
/boot/grub/menu.lst which will need the following as a minimum:

default 0
timeout 5
title=Linux
   kernel (hd0,0)/boot/vmlinuz root=/dev/hda1
   initrd (hd0,0)/boot/initrd


The above example defines that after a 5 second delay we are booting the kernel
/boot/vmlinuz on the first partition of the first IDE drive in your system and
we load the initrd at the same location. Obviously if the root partition is 
at a different place the location (hdX,X and the /dev/disk entry) has to be 
modified

Unlike lilo where lilo has to be reinstalled on the boot record everytime 
/etc/lilo.conf is modified in grub all modifications are automatically read
during reboot.