Some thoughts after reading the comments to date: The root cause of this error is stated clearly on #109
Various successful workarounds have been reported, including: Identifying the device mounted on /boot then chrooting to it. Then either manually uninstalling and reinstalling the grub packages or running grub-install or running dpkg-reconfigure grub-pc The concensus appears to be a preference for dpkg-reconfigure grub-pc However, many of the reports are from users with dual-boot Win8 installations (like mine) dpkg-query -l 'grub*' shows that I have grub-efi-amd64 installed, but not grub-pc or grub-efi It is probable that most pcs with Win8 have 64bit installations. Would this procedure work? boot from usb or cd dpkg-query -l 'grub*' to determine which grub packages are installed (grub-efi-amd64 in my case) df to determine device mounted on /boot/efi (sda2 in my case) cd /tmp mkdir mount-point sudo mount /dev/sda2 /tmp/mount-point sudo mount --bind /dev /tmp/mount-point/dev sudo mount --bind /proc /tmp/mount-point/proc sudo mount --bind /sys /tmp/mount-point/sys sudo chroot /tmp/mount-point dpkg-reconfigure grub-efi-amd64 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1289977 Title: Ubuntu 14.04 Update breaks grub, resulting in "error: symbol 'grub_term_highlight_color' not found" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1289977/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs