Hi All! Leopard worked fine when that was the only operating system on the computer.. after I installed the Ubuntu, leopard was not being recognized by the grub. I have edited the grub (source - http://www.howtoforge.com/working_with_the_grub_menu) and managed to change the background too, however when I choose Leopard to boot from, it comes up with the error - Error 12 : Invalid device requested. This is the sudo fdisk -l result.. [email protected]:~$ sudo fdisk -l [sudo] password for umang: Disk /dev/sda: 250.0 GB, 250059350016 bytes 255 heads, 63 sectors/track, 30401 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x00074fb8 Device Boot Start End Blocks Id System /dev/sda1 1 2188 17575078+ 83 Linux /dev/sda2 2189 26511 195374497+ 5 Extended /dev/sda5 * 2189 26511 195374466 af Unknown How do I go about fixing this error ? Thanks Umang PS: do not have / want windows on my computer.