package passwd 1:4.1.5.1-1ubuntu9.1 failed to install/upgrade: cannot compute MD5 hash for file '/etc/init/passwd.conf': failed to read (Input/output error)

[raman]

no software installed from terminal or software centre

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: passwd 1:4.1.5.1-1ubuntu9.1
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
Date: Thu Sep 24 07:29:05 2015
DpkgTerminalLog: Setting up passwd (1:4.1.5.1-1ubuntu9.1) ...
DuplicateSignature: package:passwd:1:4.1.5.1-1ubuntu9.1:cannot compute MD5 hash for file '/etc/init/passwd.conf': failed to read (Input/output error)
ErrorMessage: cannot compute MD5 hash for file '/etc/init/passwd.conf': failed to read (Input/output error)
InstallationDate: Installed on 2015-09-23 (0 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
SourcePackage: shadow
Title: package passwd 1:4.1.5.1-1ubuntu9.1 failed to install/upgrade: cannot compute MD5 hash for file '/etc/init/passwd.conf': failed to read (Input/output error)
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.init.passwd.conf: [inaccessible: [Errno 5] Input/output error]

[Steve Langasek (vorlon)]

> passwd:1:4.1.5.1-1ubuntu9.1:cannot compute MD5 hash for file '/etc/init/passwd.conf': failed to read (Input/output error)

This points to a disk failure, not a bug in the passwd package. Marking invalid.