This took down one of my Digital Ocean droplets running Debian 10 (because I was an idiot and said "yes" to continue when grub reported a failure). But I was able to fix it similar to Bernd by booting the DO recovery ISO (that runs Ubuntu), mount my root disk at /mnt, chroot, and then run: grub-install --root-directory=/mnt/ /dev/vda
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1889509 Title: grub boot error : "symbol 'grub_calloc' not found To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1889509/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs