usb hard disk

[Zoran Kolic]

> It works like this: 
> (usb hard drive connected to machine)
> - you boot machine (on some machines you can press a special key to
>   bring up a bios boot menu)
> - you select usb hard drive from bios boot menu
> - bios loads boot loader (either Grub, Lilo, FreeBSD boot loader, 
>   or whatever boot loader you use)
> - boot loader from usb hardr drive does its thing (either booting an OS
>   or displaying a boot menu)

Yup. I want my mbr on internal hdd and another grub on external
usb drive to boot linux. Simply, to let bios to choose from two
equal disks. Possible?

                                Zoran