root@lubuntu:/# apt-get install --reinstall grub-efi-amd64 grub-efi-amd64-bin grub-common
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 3 reinstalled, 0 to remove and 0 not upgraded.
Need to get 0 B/2,367 kB of archives.
After this operation, 0 B of additional disk space will be used.
Preconfiguring packages ...
(Reading database ... 379403 files and directories currently installed.)
Preparing to unpack .../grub-common_2.02~beta2-9ubuntu1.3_amd64.deb ...
runlevel:/var/run/utmp: No such file or directory
Unpacking grub-common (2.02~beta2-9ubuntu1.3) over (2.02~beta2-9ubuntu1.3) ...
Preparing to unpack .../grub-efi-amd64_2.02~beta2-9ubuntu1.3_amd64.deb ...
Unpacking grub-efi-amd64 (2.02~beta2-9ubuntu1.3) over (2.02~beta2-9ubuntu1.3) ...
Preparing to unpack .../grub-efi-amd64-bin_2.02~beta2-9ubuntu1.3_amd64.deb ...
Unpacking grub-efi-amd64-bin (2.02~beta2-9ubuntu1.3) over (2.02~beta2-9ubuntu1.3) ...
Processing triggers for ureadahead (0.100.0-16) ...
Processing triggers for man-db (2.6.7.1-1ubuntu1) ...
/usr/bin/mandb: the setuid man user "man" does not exist
Setting up grub-common (2.02~beta2-9ubuntu1.3) ...
runlevel:/var/run/utmp: No such file or directory
Setting up grub-efi-amd64-bin (2.02~beta2-9ubuntu1.3) ...
Setting up grub-efi-amd64 (2.02~beta2-9ubuntu1.3) ...
root@lubuntu:/#