This has been a very good thread about the Native BIOS Dual Boot options.
Since I was the one that recommended dual booting using two physical SATA
drives, and how easy it was, I want to comment on some more testing I have
done to validate some of the comments here.
Daniel, you are exactly right! I have just finished testing your scenario
and it is absolutely true about the restore points. Not that I doubted it,
but it's always nice to see for yourself. No more needs to be said I
suppose, but I would like to clarify for others exactly what happens.
In my case, this works out okay. I have two disks (SATA200-Vista and
SATA250-XP). Both had bootable XP Pro (virtually duplicates for instant
recovery options) loads on them. I decided to load Vista on the smaller 200
that was sort of my backup for the XP on the 250. Remember, Vista is the
EXPERIMENTAL system here, not XP.
So... it's true, when you boot to XP it will remove your existing Vista
restore points. When you boot to Vista, Vista doesn't bother your XP points
at all. So... your "gold" system stays in tact, no problem. (The Vista
on-line help which describes this restore point removal during dual boot is
not clear about which restore points are removed - XP's or Vista's or both -
another reason I wanted to do my own test)
When you are satisfied with your Vista load, you can simply format the XP
disk and the restore point problem in Vista will not happen again.
If you're going to be playing around a lot with Vista with drivers and
things that you feel might require using a restore point, just make sure you
finish to a stable state (making restore points before and after manually,
if necessary) before booting back to XP.
As long as Vista remains a "test" system, even a complete reload doesn't
bother me. Once it is more than a test system (i.e. you decide to take it
"live"), format your XP disk and the restore point issue is gone.
-Frank