package mysql-server-5.5 5.5.29-0ubuntu0.12.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Simone]

Error during upgrading mysql

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: mysql-server-5.5 5.5.29-0ubuntu0.12.04.1
ProcVersionSignature: Ubuntu 3.2.0-36.57-generic 3.2.35
Uname: Linux 3.2.0-36-generic x86_64
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
Date: Thu Feb 14 16:39:35 2013
DpkgHistoryLog:
 Start-Date: 2013-02-14 16:38:28
 Commandline: aptdaemon role='role-commit-packages' sender=':1.101'
 Upgrade: gnome-settings-daemon:amd64 (3.4.2-0ubuntu0.6, 3.4.2-0ubuntu0.6.2), libssh-4:amd64 (0.5.2-1ubuntu0.12.04.1, 0.5.2-1ubuntu0.12.04.2)
DuplicateSignature:
 Setting up mysql-server-5.5 (5.5.29-0ubuntu0.12.04.1) ...
 start: Job failed to start
 invoke-rc.d: initscript mysql, action "start" failed.
 dpkg: error processing mysql-server-5.5 (--configure):
  subprocess installed post-installation script returned error exit status 1
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120822.4)
Logs.var.log.daemon.log:

MarkForUpload: True
MySQLConf.etc.mysql.conf.d.mysqld.safe.syslog.cnf:
 [mysqld_safe]
 syslog
MySQLVarLibDirListing: ['ib_logfile0', 'debian-5.5.flag', 'test', 'mysql', 'phpmyadmin', 'ibdata1', 'performance_schema', 'mysql_upgrade_info', 'ib_logfile1']
SourcePackage: mysql-5.5
Title: package mysql-server-5.5 5.5.29-0ubuntu0.12.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)