No USB issues so far.. Must be a clover thing..
Heres what i did:
followed instructions on this to make Bootable Clover Installation (
http://www.tonymacx86.com/hp-proboo...-install-yosemite-hp-laptops-clover-uefi.html)
Followed:
Steps 1 to 2a - and on step 1 Use my
Clover Folder (it does have your
boot flags and kext needed also note that i am using a
broadcom compatible wifi card got it from amazon, just
delete that kext if you dont have the same card as mine)
Then go to BIOS settings - Enable UEFI then secure boot disabled. then turn off the alpha.. press f12 select the bootable UEFI usb. should be able to select the installation.
then for kexts.. i basically used your kexts