package mount 2.20.1-5.1ubuntu20.9 failed to install/upgrade: package is in a very bad inconsistent state; you should reinstall it before attempting configuration

[Prashant vardhan singh]

my system got hanged every time

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: mount 2.20.1-5.1ubuntu20.9
ProcVersionSignature: Ubuntu 3.13.0-103.150-generic 3.13.11-ckt39
Uname: Linux 3.13.0-103-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.21
Architecture: amd64
Date: Thu May 4 21:50:54 2017
DpkgTerminalLog:
 dpkg: error processing package mount (--configure):
  package is in a very bad inconsistent state; you should
  reinstall it before attempting configuration
DuplicateSignature: package:mount:2.20.1-5.1ubuntu20.9:package is in a very bad inconsistent state; you should reinstall it before attempting configuration
ErrorMessage: package is in a very bad inconsistent state; you should reinstall it before attempting configuration
InstallationDate: Installed on 2015-07-22 (651 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.7
 apt 1.0.1ubuntu2.15
SourcePackage: util-linux
Title: package mount 2.20.1-5.1ubuntu20.9 failed to install/upgrade: package is in a very bad inconsistent state; you should reinstall it before attempting configuration
UpgradeStatus: Upgraded to trusty on 2015-08-16 (627 days ago)