EFI Dualboot Ubuntu 13.04 and Windows 8 on Lenovo IdeaPad Y500

I know there are a few posts about the matter, but none of the solutions seem to work. I have the version that does not come with a system installed, meaning that EFI SecureBoot is not activated. Windows 8 installed fine, and I left free space for Ubuntu. Windows 8 created the efi partition and one more which I don't know what is bit for. Ubuntu also installs fine, but will not boot. Windows boots fine till I run boot repair. After that, there is an error saying that the default boot media does not work. If I click enter I get to the boot device selection BIOS prompt. If I choose any of the OSs(windows and Ubuntu) a prompt will come up saying that the security policy blocks it. I updated the BIOS with no change

I would prefer to run it natively instead of a VM so if anyone could explain this I would be grateful.

Thanks