The solution to this issue is banally simple actually... There is no point reinstalling grub over and over again (which I did) or use Boot- Repair to death... You just need to give Grub what it asks for.
So I went and edited /etc/grub.d/05_debian_theme, adding the last line below: set_default_theme(){ case $GRUB_DISTRIBUTOR in Tanglu|Ubuntu|Kubuntu) # Set a monochromatic theme for Tanglu/Ubuntu. echo "${1}set menu_color_normal=white/black" echo "${1}set menu_color_highlight=black/light-gray" echo "${1}set grub_term_highlight_color=black/light-gray" running "sudo update-grub" after that did the trick, and I am now writing from a fully functional Xubuntu 14.04. I would however like to stress my disappointment and frustration about how appalling it is of Canonical/Ubuntu to release an LTS with such a stupid bug in it on such a fundamental piece of software. Furthermore, there is no documentation to be found anywhere online on what the bloody "grub_term_highlight_color" is supposed to do. Lucikily, a simple test solved the issue. -- 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-release-upgrader/+bug/1289977/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs