Am I able to use this drive or any other one like it as my main HDD for an iMac? This is just a backup in case the internal one dies and I don't want to replace it. How would I get Yosemite on this HDD or is it just not possible?
http://www.amazon.com/Toshiba-Canvi...8&qid=1421786043&sr=8-1&keywords=external+HDD
http://www.amazon.com/Toshiba-Canvi...8&qid=1421786043&sr=8-1&keywords=external+HDD
As an Amazon Associate, MacRumors earns a commission from qualifying purchases made through links in this post.