Goodmorning guys, i read all the treats but i didnt manage even to boot in installation from usb. Here is how the story goes : i had yosemite with multibeast on a gigabyte ep-45 (775) mobo with q9550 everything working flawless. Now i have upgraded my system to i5 6500 / ga-z170-hd3p / corsair 2x8gb 2400 lpx vegeance and my g/c is gtx 460 which i removed it for the installation. I created a unibeast/clover stick with yosemite in order to run my old installation to avoid clean install (is that possible ????). i upgraded my bios to f5g as you mention in this post. At the unibeast stick i partition it guid and i added in folders kexts/10.10 and 10.11 the kexts you mentioned and i tryed to boot. In the first boot with my stick i got clover screen normally but when i tryed to boot system (even choosing installation disk even my old yosemite) gave me message that the system is not compartible. i change the smbios to 3,1 and message gone but now when i choose to boot in the installation is rebooting my system (same when i choose my old yosemite hd) after showing root device id.... with verbose boot . What i do wrong? Tryed to recreate the usb many times but no results. Is that cause i create yosemite installation disk? What's your suggestions to boot this and if is possible to keep my old yosemite system running.
Update : managed to get into installation but with el-capitan....so i have to forget yosemite right?