--------------------- Swap hard disks and boot (Help) --------

This option swaps hard disks at BIOS level and in a temporary way,
(This swapping of hard disks is lost at the next reboot).

So, an OS that it is in 2nd hard disk will think that it is
in the 1st hard disk.

Booting the 1st partition of a 2nd hard disk 
is useful for booting a Windows 9x or DOS from 2nd hard disk.

Booting 2nd hard disk MBR may be useful to recover a lost 
Grub or Lilo. Although I am not sure what they will think
about hard disk swapping.

If you swap hard disks and boot from floppy or cdrom
you will be able to install OSes in hard disks that you wouldn't
be able to do in a normal way.
