package grub-efi-amd64-signed 1.66.2+2.02~beta2-36ubuntu3.2 failed to install/upgrade: el subproceso instalado el script post-installation devolvió el código de salida de error 1

[rpuntasv]

Se encontraron errores al procesar:
 grub-efi-amd64-signed
E: Sub-process /usr/bin/dpkg returned an error code (1)

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: grub-efi-amd64-signed 1.66.2+2.02~beta2-36ubuntu3.2
ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
Uname: Linux 4.4.0-22-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
Date: Thu Aug 18 23:57:22 2016
ErrorMessage: el subproceso instalado el script post-installation devolvió el código de salida de error 1
InstallationDate: Installed on 2015-07-31 (386 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: grub2-signed
Title: package grub-efi-amd64-signed 1.66.2+2.02~beta2-36ubuntu3.2 failed to install/upgrade: el subproceso instalado el script post-installation devolvió el código de salida de error 1
UpgradeStatus: Upgraded to xenial on 2016-05-14 (98 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.