package grub-efi-amd64-signed 1.66.20+2.02~beta2-36ubuntu3.20 failed to install/upgrade: sub-processo script post-installation instalado retornou estado de saída de erro 1

[Diego Cogollo]

initialization problem reported always turn on my computer

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: grub-efi-amd64-signed 1.66.20+2.02~beta2-36ubuntu3.20
ProcVersionSignature: Ubuntu 4.4.0-140.166-generic 4.4.162
Uname: Linux 4.4.0-140-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
Date: Fri Dec 14 13:40:16 2018
ErrorMessage: sub-processo script post-installation instalado retornou estado de saída de erro 1
InstallationDate: Installed on 2017-05-30 (570 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.5
 apt 1.2.29
SourcePackage: grub2-signed
Title: package grub-efi-amd64-signed 1.66.20+2.02~beta2-36ubuntu3.20 failed to install/upgrade: sub-processo script post-installation instalado retornou estado de saída de erro 1
UpgradeStatus: No upgrade log present (probably fresh install)