The link is at the beginning of this string... but here it is again: Http://www.thesataswitch.com
. In reality it's only a power switch - you change the connection to the power at the drive from one to another by changing the position of the switch. The power is cut off at the source, so there is no crossover involved. Neither drive is aware of the other - when the switch is on one of the drives, the other is not seen in the BIOS - nor in the OS. Since I installed each OS on the same motherboard, and the drives are SATA - whichever one is selected it will be recognized as the master drive - since all SATA drives are masters. Check out the site - there is information about it and a diagram [schematic] you can study - and build your own - or buy one if you wish; and there are several models available. It's just an alternate method of achieving a dual-boot or a triple-boot -or even a RAID configuration . The installation takes about 10 minutes - there is only one small hole to drill. I was somewhat dubious myself, especially after Fred contributed his information, but after examining and using the switch, am no longer nervous about it. The last time I tried it, I had a non-related short which I was able to correct by moving all the hardware to another case, thereby finding the raw wire. It has been working fine, no excessive heat, artifacts or error messages this time. And the system time is always accurate - on both drives.
Thanks for the input - it's appreciated... I'm only trying to help, this allows one to have the luxury of two computers - i.e., two operating systems in one case; and you can always add more drives, just remove one, install another OS and change to any of them whenever you wish, without having to make any changes to the Grub Loader or BIOS.