*** This bug is a duplicate of bug 1090829 *** https://bugs.launchpad.net/bugs/1090829
Your EFI system partition is corrupt. You will need to chkdsk it from Windows to repair it. ** This bug has been marked a duplicate of bug 1090829 grub-efi fails to install with Input/output error -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1266350 Title: ubuntu 13.10 won't install as a dual boot with Windows 8.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1266350/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs