Same bug here on Asus N550JV. Tried to use Boot-repair. Had the same 'Locked-ESP detected' message.
My post on Ubuntu forum: http://ubuntuforums.org/showthread.php?t=2184383 More info: http://paste.ubuntu.com/6332633/ Pressing ESC at start, I can see ubuntu (which was automatically added to that menu with no intervention from me whatsoever). Trying to boot it: black screen then it boots up W8. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1090829 Title: grub-efi fails to install with Input/output error To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dosfstools/+bug/1090829/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
