package mysql-server-5.5 5.5.37-0ubuntu0.12.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[rakesh]

while installing mysql5.5 got the following error.

    │ An error occurred while setting the password for the MySQL administrative user. This may have happened because the account already has a │
    │ password, or because of a communication problem with the MySQL server. │
    │ │
    │ You should check the account's password after the package installation. │
    │ │
    │ Please read the /usr/share/doc/mysql-server-5.5/README.Debian file for more information.

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: mysql-server-5.5 5.5.37-0ubuntu0.12.04.1
ProcVersionSignature: Ubuntu 3.2.0-61.92-generic 3.2.55
Uname: Linux 3.2.0-61-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: amd64
Date: Sun May 4 18:50:19 2014
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
Logs.var.log.daemon.log:

Logs.var.log.kern.log:
 May 4 18:50:16 rakesh-Latitude-E5420 kernel: [ 5945.151053] type=1400 audit(1399209616.643:25): apparmor="STATUS" operation="profile_load" name="/usr/sbin/mysqld" pid=8641 comm="apparmor_parser"
 May 4 18:50:16 rakesh-Latitude-E5420 kernel: [ 5945.216678] type=1400 audit(1399209616.707:26): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/mysqld" pid=8675 comm="apparmor_parser"
 May 4 18:50:17 rakesh-Latitude-E5420 kernel: [ 5946.297161] type=1400 audit(1399209617.787:27): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/mysqld" pid=8721 comm="apparmor_parser"
 May 4 18:50:18 rakesh-Latitude-E5420 kernel: [ 5947.341098] type=1400 audit(1399209618.835:28): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/mysqld" pid=8767 comm="apparmor_parser"
MarkForUpload: True
MySQLConf.etc.mysql.conf.d.mysqld.safe.syslog.cnf:
 [mysqld_safe]
 syslog
MySQLVarLibDirListing: ['ib_logfile1', 'ibdata1', 'performance_schema', 'debian-5.5.flag', 'test', 'mysql', 'ib_logfile0']
SourcePackage: mysql-5.5
Title: package mysql-server-5.5 5.5.37-0ubuntu0.12.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)