package mysql-server-5.6 5.6.27-0ubuntu0.15.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[David]

Description: Ubuntu 15.04
Release: 15.04

mysql-server:
  Installed: 5.6.27-0ubuntu0.15.04.1
  Candidate: 5.6.27-0ubuntu0.15.04.1
  Version table:
 *** 5.6.27-0ubuntu0.15.04.1 0
        500 http://nl.archive.ubuntu.com/ubuntu/ vivid-updates/main i386 Packages
        500 http://security.ubuntu.com/ubuntu/ vivid-security/main i386 Packages
        100 /var/lib/dpkg/status
     5.6.24-0ubuntu2 0
        500 http://nl.archive.ubuntu.com/ubuntu/ vivid/main i386 Packages

ProblemType: Package
DistroRelease: Ubuntu 15.04
Package: mysql-server-5.6 5.6.27-0ubuntu0.15.04.1
ProcVersionSignature: Ubuntu 3.19.0-33.38-generic 3.19.8-ckt7
Uname: Linux 3.19.0-33-generic i686
ApportVersion: 2.17.2-0ubuntu1.8
Architecture: i386
Date: Wed Nov 11 21:26:09 2015
DuplicateSignature: package:mysql-server-5.6:5.6.27-0ubuntu0.15.04.1:subprocess installed post-installation script returned error exit status 1
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2015-11-06 (5 days ago)
InstallationMedia: Ubuntu 12.04.5 LTS "Precise Pangolin" - Release i386 (20140807.1)
Logs.var.log.daemon.log:

MySQLConf.etc.mysql.conf.d..keepme:
MySQLConf.etc.mysql.mysql.conf.d.mysqld.safe.syslog.cnf:
 [mysqld_safe]
 syslog
MySQLVarLibDirListing: []
ProcCmdline: BOOT_IMAGE=/boot/vmlinuz-3.19.0-33-generic root=UUID=60bf6c4b-c8b8-414a-a100-436a70e1bece ro quiet splash vt.handoff=7
RelatedPackageVersions:
 dpkg 1.17.25ubuntu1
 apt 1.0.9.7ubuntu4.2
SourcePackage: mysql-5.6
Title: package mysql-server-5.6 5.6.27-0ubuntu0.15.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to vivid on 2015-11-11 (0 days ago)

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1519815, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.