This is a menu file for Grub taken from a triple boot system.
The computer has (2) hard drives installed.

In this example:
Windows 2000 is installed at /dev/sdb1
CentOs  5.1  is installed at /dev/sdb3
Ubuntu 	7.10 is installed at /dev/sda1

Ubuntu recognizes the drives as sda and sdb
CentOS recognizes the drives as hda and hdc

## ## End Default Options ##

title           Windows 2000
map             (hd0,0) (hd1,0)
map             (hd1,0) (hd0,0)
rootnoverify    (hd1,0)
makeactive
chainloader     +1

title           CentOS 5.1
root            (hd1,2)
kernel          /boot/vmlinuz-2.6.18-53.el5 root=/dev/hdc3 ro quiet
initrd          /boot/initrd-2.6.18-53.el5.img
quiet

title           Ubuntu 7.10, kernel 2.6.22-14-generic
root            (hd0,0)
kernel          /boot/vmlinuz-2.6.22-14-generic root=UUID=01f98243-968d-4556-ac79-9c2867c7f84f ro quiet splash
initrd          /boot/initrd.img-2.6.22-14-generic