More and more people stumble upon this - https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1720572
** Bug watch added: GNU Savannah Bug Tracker #46805 http://savannah.gnu.org/bugs/?46805 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1466150 Title: grub-install breaks when ESP is on raid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1466150/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs