*** This bug is a duplicate of bug 1889556 *** https://bugs.launchpad.net/bugs/1889556
I'm unable to fix this on my ubuntu 16 machine. # debconf-get-selections | grep -E 'grub-(efi|pc)/install_devices[^_]' grub-pc grub-pc/install_devices multiselect /dev/xvda1 # debconf-set-selections grub-pc grub-pc/install_devices multiselect /dev/vda1 grub-pc grub-pc/install_devices_disks_changed multiselect /dev/vda1 # dpkg-reconfigure grub-pc Generating grub configuration file ... Found linux image: /boot/vmlinuz-4.4.0-186-generic Found initrd image: /boot/initrd.img-4.4.0-186-generic Found linux image: /boot/vmlinuz-4.4.0-185-generic Found initrd image: /boot/initrd.img-4.4.0-185-generic Found linux image: /boot/vmlinuz-4.4.0-184-generic Found initrd image: /boot/initrd.img-4.4.0-184-generic done When i reboot i get the default grub> prompt, and can boot by typing the correct commands from: https://www.linux.com/training-tutorials/how-rescue-non-booting-grub-2-linux/ -- 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