Bootloader fails to load OS

[Zkirtaem]

I'm trying to set up Yosemite on my Thinkpad X220 (i5-2520m, 4GB RAM, every part like WLAN card is stock). Last couple of days i was slowly making progress, one time i even managed to magically boot OS (from pendrive bootloader) with proper graphics instead of crappy safe-mode framebuffer, but now i'm stuck:

I installed Clover and i'm trying to make it work. I can still boot OS from pendrive bootloader, but HDD bootloader i just installed hangs after loading drivers (i think). Picture shows exact moment when my loading freezes:



I was searching a lot, but i can't find anything about it. I also tried to switch drivers64 folder from pendrive with my HDD loader one, but it changed nothing. Please help.

 

[Zkirtaem]

Small update, i found some kind of kext debugging option, it seems like there is nothing wrong either.

I'd love to find some kind of error in debug log, but so far i fail to do so.