How do I dual-boot on separate physical drives?

[m654321]

Many thanks bitsnpcs, for your reply.

Yes, I remember fiddling around with 'jumpers' on old IDE drives, but our laptops are not that old - all of them use SATA drives (SSDs), and so I haven't  had to bother with main/slave settings. 
I always enter the BIOS for adjusting the settings for boot priority.

In the end I worked out what do do for setting up a dual-boot system on a dual-drive laptop, where each OS is on a different physical drive, rather than the more common method where both OSes are installed on the same drive and the second drive is used as  /home

I will post this as a tutorial in the next week or so and put the link here, and  also give my reasons for dual-booting in this way.

Thanks again bitsnpcs, always interesting to read your posts and always a pleasure to read your replies  8)

Cheers
Mike