Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

freeuser

Suspended
Original poster
Apr 8, 2013
112
12
In the moment I have an Efi Win 8.1 installed on the internal SSD of my iMac and want to install Yosemite Public Beta on an external harddisk. This should be in theory no big problem at all. But I fear, it can kill to boot my Win partion after that or changes somewhat in Efi.

has anyone done such an install in pratice and tell about the hints? Thx!
 
Yes, I did it ;-)

and had so far no problem to upadate my FW800 SSD from Mav to Yosemite, and most importantly for me, my internal Win 8.1 booted fine after that ;-)!
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.