package grub-efi-amd64-signed 1.91+2.02-2ubuntu6 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1

[boby_du]

a failure to update

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: grub-efi-amd64-signed 1.91+2.02-2ubuntu6
ProcVersionSignature: Ubuntu 4.13.0-32.35-generic 4.13.13
Uname: Linux 4.13.0-32-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.8-0ubuntu8
Architecture: amd64
Date: Thu Feb 8 06:51:29 2018
DuplicateSignature:
 package:grub-efi-amd64-signed:1.91+2.02-2ubuntu6
 Setting up grub-efi-amd64-signed (1.91+2.02-2ubuntu6) ...
 grub-install: ошибка: /usr/lib/grub/i386-pc/modinfo.sh не существует. Укажите --target или --directory.
 dpkg: error processing package grub-efi-amd64-signed (--configure):
  installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
ErrorMessage: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
InstallationDate: Installed on 2018-02-05 (2 days ago)
InstallationMedia: Ubuntu-MATE 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180204)
Python3Details: /usr/bin/python3.6, Python 3.6.4, python3-minimal, 3.6.3-0ubuntu2
PythonDetails: /usr/bin/python2.7, Python 2.7.14+, python-minimal, 2.7.14-2ubuntu1
RelatedPackageVersions:
 dpkg 1.19.0.4ubuntu1
 apt 1.6~alpha7ubuntu1
SourcePackage: grub2-signed
Title: package grub-efi-amd64-signed 1.91+2.02-2ubuntu6 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)