package python3-apport 2.20.1-0ubuntu2.17 failed to install/upgrade: unable to securely remove '/usr/share/doc/python3-apport/copyright.dpkg-new': Read-only file system

[Vincenzo Daniele]

This came just after a reboot.
I did nothing special before that, no installtions or updates.
Id automatically lead me here.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: python3-apport 2.20.1-0ubuntu2.17
ProcVersionSignature: Ubuntu 4.4.0-127.153-generic 4.4.128
Uname: Linux 4.4.0-127-generic x86_64
ApportLog:

ApportVersion: 2.20.1-0ubuntu2.17
Architecture: amd64
Date: Thu May 31 09:56:37 2018
DuplicateSignature:
 package:python3-apport:2.20.1-0ubuntu2.17
 Unpacking python3-problem-report (2.20.1-0ubuntu2.18) over (2.20.1-0ubuntu2.17) ...
 dpkg: error processing archive /var/cache/apt/archives/python3-problem-report_2.20.1-0ubuntu2.18_all.deb (--unpack):
  unable to securely remove '/usr/share/doc/python3-problem-report/copyright.dpkg-new': Read-only file system
ErrorMessage: unable to securely remove '/usr/share/doc/python3-apport/copyright.dpkg-new': Read-only file system
InstallationDate: Installed on 2016-12-04 (542 days ago)
InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.4
 apt 1.2.26
SourcePackage: apport
Title: package python3-apport 2.20.1-0ubuntu2.17 failed to install/upgrade: unable to securely remove '/usr/share/doc/python3-apport/copyright.dpkg-new': Read-only file system
UpgradeStatus: No upgrade log present (probably fresh install)