package libpolkit-agent-1-0 0.105-20ubuntu0.18.04.4 failed to install/upgrade: unable to sync directory '/var/lib/dpkg/tmp.ci/': Input/output error

[Stephen Baker]

this shows up on startup

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: libpolkit-agent-1-0 0.105-20ubuntu0.18.04.4
ProcVersionSignature: Ubuntu 4.15.0-43.46-generic 4.15.18
Uname: Linux 4.15.0-43-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
Date: Sat Jan 26 18:30:41 2019
DuplicateSignature:
 package:libpolkit-agent-1-0:0.105-20ubuntu0.18.04.4
 Unpacking gir1.2-polkit-1.0 (0.105-20ubuntu0.18.04.4) over (0.105-20ubuntu0.18.04.1) ...
 dpkg: error processing archive /tmp/apt-dpkg-install-STjm8e/008-libpolkit-agent-1-0_0.105-20ubuntu0.18.04.4_amd64.deb (--unpack):
  unable to sync directory '/var/lib/dpkg/tmp.ci/': Input/output error
ErrorMessage: unable to sync directory '/var/lib/dpkg/tmp.ci/': Input/output error
InstallationDate: Installed on 2013-11-13 (1900 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
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 1.6.6ubuntu0.1
SourcePackage: policykit-1
Title: package libpolkit-agent-1-0 0.105-20ubuntu0.18.04.4 failed to install/upgrade: unable to sync directory '/var/lib/dpkg/tmp.ci/': Input/output error
UpgradeStatus: No upgrade log present (probably fresh install)

[Sebastien Bacher (seb128)]

The log shows that the disk is hitting some error, not a bug in the software