package mysql-server-5.6 5.6.27-0ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 128

[Hudson Francis W. Batista]

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ProblemType: Package
DistroRelease: Ubuntu 15.10
Package: mysql-server-5.6 5.6.27-0ubuntu1
ProcVersionSignature: Ubuntu 4.2.0-23.28-generic 4.2.6
Uname: Linux 4.2.0-23-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
Date: Mon Jan 11 21:16:02 2016
DuplicateSignature: package:mysql-server-5.6:5.6.27-0ubuntu1:subprocess installed post-installation script returned error exit status 128
ErrorMessage: subprocess installed post-installation script returned error exit status 128
InstallationDate: Installed on 2016-01-11 (5 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
Logs.var.log.daemon.log:

MySQLConf.etc.mysql.conf.d.mysql.cnf: [mysql]
MySQLConf.etc.mysql.conf.d.mysqldump.cnf:
 [mysqldump]
 quick
 quote-names
 max_allowed_packet = 16M
MySQLConf.etc.mysql.mysql.conf.d.mysqld.safe.syslog.cnf:
 [mysqld_safe]
 syslog
MySQLVarLibDirListing: ['performance_schema', 'auto.cnf', 'ib_logfile1', 'ibdata1', 'mysql', 'ib_logfile0', 'debian-5.6.flag']
ProcCmdline: BOOT_IMAGE=/vmlinuz-4.2.0-23-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
 dpkg 1.18.2ubuntu5.1
 apt 1.0.10.2ubuntu1
SourcePackage: mysql-5.6
Title: package mysql-server-5.6 5.6.27-0ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 128
UpgradeStatus: Upgraded to wily on 2016-01-11 (4 days ago)