There seems to have been an issue fetching some grub parts off http://nz.archive.ubuntu.com/ubuntu/, which is why the grub installer failed. Can you try installing the system again and see if the process still fails at that point?
** Changed in: grub-installer (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1256445 Title: EFI error causes Ubuntu 13.10 GRUB installation to stop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1256445/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs