package grub-efi-amd64 2.02~beta2-29ubuntu0.1 failed to install/upgrade: il sottoprocesso installato script di post-installation ha restituito lo stato di errore 1

[boja]

generic error

ProblemType: Package
DistroRelease: Ubuntu 15.10
Package: grub-efi-amd64 2.02~beta2-29ubuntu0.1
ProcVersionSignature: Ubuntu 4.2.0-21.25-generic 4.2.6
Uname: Linux 4.2.0-21-generic x86_64
NonfreeKernelModules: openafs
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
Date: Thu Dec 3 14:05:30 2015
DuplicateSignature: package:grub-efi-amd64:2.02~beta2-29ubuntu0.1:il sottoprocesso installato script di post-installation ha restituito lo stato di errore 1
ErrorMessage: il sottoprocesso installato script di post-installation ha restituito lo stato di errore 1
InstallationDate: Installed on 2015-09-30 (72 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150924)
ProcCmdLine: BOOT_IMAGE=/@/vmlinuz root=/dev/mapper/isw_bbebahdeib_ASUS_OS11 ro rootflags=subvol=@ quiet splash
RelatedPackageVersions:
 dpkg 1.18.2ubuntu5.1
 apt 1.0.10.2ubuntu1
SourcePackage: grub2
Title: package grub-efi-amd64 2.02~beta2-29ubuntu0.1 failed to install/upgrade: il sottoprocesso installato script di post-installation ha restituito lo stato di errore 1
UpgradeStatus: No upgrade log present (probably fresh install)