Boot multiple OSes with Grub: Linux, Windows XP and FreeBSD

If you want to be able to choose at boot time between multiple Operating Systems, all installed on different partitions on the same drive or on other drive but on the same system you must edit the /boot/grub/menu.lst file and add the following content: Grub is a boot manager/loader that comes with GNU/Linux. # --------------------- /boot/grub/menu.lst file ------------------ default         4 timeout         10 color cyan/blue white/blue title           Debian GNU/Linux, kernel 2.6.26-2-686 root            (hd0,4) kernel          /vmlinuz-2.6.26-2-686 root=/dev/sda3 ro quiet initrd          /initrd.img-2.6.26-2-686 title           Debian GNU/Linux, kernel 2.6.26-2-686 (single-user mode) root            (hd0,4) kernel          /vmlinuz-2.6.26-2-686 root=/dev/sda3 ro single initrd          /initrd.img-2.6.26-2-686 title           Debian GNU/Linux, kernel 2.6.26-2-486 root            (hd0,4) kernel          /vmlinuz-2.6.26-2-486 root=/dev/sda3 ro quiet initrd          /initrd.img-2.6.26-2-486 title           Debian GNU/Linux, kernel 2.6.26-2-486 (single-user mode) root            (hd0,4) kernel          /vmlinuz-2.6.26-2-486 root=/dev/sda3 ro single initrd          /initrd.img-2.6.26-2-486 title           FreeBSD 8.0 rootnoverify    (hd0,0) chainloader +1 title           Windows XP rootnoverify    (hd0,1) savedefault chainloader     +1 # ---------------- end of file  /boot/grub/menu.lst file ------------------ In this config file we asume that your FreeBSD OS is on first partition, Windows XP on second and Linux on 5th. Counting starts at 0, so (hd0,0) means, hard drive 1 (first), partition 1 (first).

 

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