package friendly-recovery 0.2.38ubuntu1 failed to install/upgrade: installed friendly-recovery package post-installation script subprocess returned error exit status 1

[yves GUILLON]

Maybe double with half an hour ago report

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: friendly-recovery 0.2.38ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
Date: Tue Dec 18 23:23:08 2018
ErrorMessage: installed friendly-recovery package post-installation script subprocess returned error exit status 1
InstallationDate: Installed on 2018-12-18 (0 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
PackageArchitecture: all
Python3Details: /usr/bin/python3.6, Python 3.6.7, python3-minimal, 3.6.7-1~18.04
PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu2.1
 apt 1.6.6
SourcePackage: friendly-recovery
Title: package friendly-recovery 0.2.38ubuntu1 failed to install/upgrade: installed friendly-recovery package post-installation script subprocess returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Dimitri John Ledkov (xnox)]

tail: impossible d'ouvrir '/etc/grub.d/39_custom' en lecture: Aucun fichier ou dossier de ce type
tail: impossible d'ouvrir '(copie)' en lecture: Aucun fichier ou dossier de ce type

Something is wrong with that file. What is it?!

[Launchpad Janitor (janitor)]

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