I recently bought an Asus M32CD-B09 Desktop. I am trying to install Ubuntu 16.04. I've turned off all UEFI secure boot stuff in my BIOS. When I try to install, it gets past the page asking if I would like to install updates. Then I get an error saying something like, an error occurred, would you like to retry or cancel or continue. I select continue. It starts installing but locks up. I am able to restart the PC and boot back into Windows which tells me it can't even write to my hard drive. It's like secure boot or some kind of boot loader lock is enabled and ubuntu can't touch my hard drive. But I turned off all secre boot and deleted all the secure boot keys. Any ideas what I'm missing?
Figured it out. Had to add these two lines to grub boot loader during install...
Also had to make sure all secure boot keys were deleted in the bios and none of the boot drives were set to uefi.