Experienced the same issue as Mathias Dietrich describes here. Of note is the fact that this happen on nearly "stock" instance.
Started as 13.04 server. (booting from unraided drive, config includes 2 drives in raid array) Installed CouchDB, ElasticSearch, Added ubuntu desktop Upgraded via command line to 13.10 Upgraded via desktop tool to 14.04 Recovery path was somewhat different but similar: Booted from SuperGrub image: http://www.supergrubdisk.org/ Into 13.10 image (find the Ubuntu entry via supergrub menu) Installed Jaunty version of boot-repair (trusty not available yet at time of writing) see: http://askubuntu.com/questions/449818/boot-repair-ppa-404-error-on-ubuntu-14-04 Boor repair complained about missing "linux" package. I just removed this from apt-get command That repaired it. Sorry... i did not see the request for parted -l, debconf-show grub-pc till just now However, I am confident that if the same sequence is repeated.. the same thing will happen. Note that NO manual editing changing of boot config was performed. But 13.04 and 13.10 instances worked just fine. Also the upgrade form 13.04 - 13.10 went through without any issues. -- 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