Gutsy on one partion/Hardy on another

[SYNass IT Ubuntu / Linux]

On Thu, 2008-03-27 at 21:36 -0700, NoOp wrote:
> What is the easiest way to install Hardy on a separate partion?

I do have a specific question regarding /boot & GRUB in such a setup:

Do I place GRUB in MBR ...
... or better int the respective partition ???

Finally the notebook will have 4 OS selectable:

prim / NTFS - sys in 1st C: Original Installation of WXPP
prim - OS/2 Bootmanager (mandatory)
prim / HPFS - sys in 2nd C: OS/2 Warp 4.52

log / ext3 - 3rd sys is Ubuntu PROD ie Gutsy
log / ext3 - 4th sys is Ubuntu TEST ie Hardy

Without the 4th I was able to get my configuration running ! ;-)

Between 1st and 2nd is the OS/2 Bootmanager and 
GRUB was placed into the respective Ubuntu !!!

How do I best with Ubuntu installed twice ??

Your enlightening, hints, suggestions and warnings are hot awaited
here ! ;-)

TIA and cheers, svobi