You have several disk drives, some of which have broken installs of grub on them. You need to make sure that your bios is set to boot from a drive with a correct install of grub on it. You can use sudo dpkg- reconfigure to select which drives should have grub installed on them, and this will also reinstall a working copy to the selected drives.
** Changed in: grub2 (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1309625 Title: Xubuntu 14.04: Grub drops to rescue prompt with message: "error: symbol 'grub_term_highlight_color' not found." To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1309625/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs