package util-linux 2.27.1-6ubuntu3.6 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Karthikeyan Ponnusamy]

I am trying to upgrade 16.04 to 18.04, but I am encountering the errors as below

insserv: warning: script is corrupt or invalid: /etc/init.d/../rc2.d/S01shm_load
insserv: Script oracle-xe is broken: missing end of LSB comment

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: util-linux 2.27.1-6ubuntu3.6
ProcVersionSignature: Ubuntu 4.4.0-83.106-generic 4.4.70
Uname: Linux 4.4.0-83-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
AptOrdering:
 util-linux: Configure
 mysql-server-5.7: Configure
 mysql-server: Configure
 NULL: ConfigurePending
Architecture: amd64
Date: Mon Dec 17 22:00:50 2018
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2016-09-24 (814 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.4
 apt 1.2.19
SourcePackage: util-linux
Title: package util-linux 2.27.1-6ubuntu3.6 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to xenial on 2018-12-18 (0 days ago)