I always like to start by apologizing just in case this is a duplicate question, but I don't really know what to ask, so I don't know what to look for. With that being said, I'm running a Lenovo V570 with 16GB of RAM and a 750GB HDD and want to run a single OS (no dual boot with Windows). I was running 12.04 LTS with no problem, but now that I'm trying to upgrade to 14.04 LTS it seems that I can't boot my computer. I am installing the OS from a DVD which I burned using the 64-bit *.iso file.
When I start it up I get an error Could not open efi\boot\fallback.efi: 14 and then it brings up the GRUB menu for me to try Ubuntu without installing, install Ubuntu, etc.
I have successfully install Ubuntu but since it's not working, I boot into the trial version of Ubuntu and have run the Boot Repair per the accepted answer in this question.
Looking at the GRUB options, it does show the EFI option and it is ticked, so I believe it's doing what it's supposed to be doing and not installing in Legacy mode. After the boot repair finishes, though, it tells me there's an error and gives me this link.
I'm not sure what to do with that information, though, because I'm not overly savvy with this kind of stuff.
Can anyone help with why I can't seem to boot after installing 14.04 LTS?
