package mysql-server-5.7 5.7.11-0ubuntu6 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Pierre G. ROY]

See summary.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: mysql-server-5.7 5.7.11-0ubuntu6
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
Date: Sat Apr 23 08:15:27 2016
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2013-12-18 (857 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
Logs.var.log.daemon.log:

Logs.var.log.mysql.error.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: ['appointements', 'gnucash', 'ibtmp1', 'lesthesthai', 'MAupdate', 'thaicoffeeandtea@002eca', 'magnustest2@002e5', 'thaicoffeeandtea', 'pasde239_registre', 'auto.cnf', 'ib_logfile0', 'phpmyadmin', 'ib_buffer_pool', 'organicsample', 'performance_schema', 'mysql_upgrade_info', 'debian-5.7.flag', 'debian-5.6.flag', 'sys', 'magnussample', 'ib_logfile1', 'sql@002dledger', 'debian-5.5.flag', 'dolibarr', 'test@002eca', 'frontacc', 'GnuCash', 'FAtest', 'mysql', 'pgroy.err', 'ibdata1']
ProcCmdline: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic root=UUID=ce0930d5-5ab4-46fb-b005-8419c14a315a ro quiet splash
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1
 apt 1.2.10ubuntu1
SourcePackage: mysql-5.7
Title: package mysql-server-5.7 5.7.11-0ubuntu6 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to xenial on 2016-04-23 (0 days ago)

[Robie Basak (racb)]

From log:

Setting up mysql-server-5.7 (5.7.11-0ubuntu6) ...
Installing new version of config file /etc/apparmor.d/usr.sbin.mysqld ...
Installing new version of config file /etc/init.d/mysql ...
Installing new version of config file /etc/init/mysql.conf ...
Installing new version of config file /etc/mysql/mysql.conf.d/mysqld.cnf ...
update-alternatives: using /etc/mysql/mysql.cnf to provide /etc/mysql/my.cnf (my.cnf) in auto mode
insserv: script lpd: service cups already provided!
mysql start/running, process 20528
Checking if update is needed.
Checking server version.
Running queries to upgrade MySQL server.
mysql_upgrade: [ERROR] 1049: Unknown database 'performance_schema'
mysql_upgrade failed with exit status 5
dpkg: error processing package mysql-server-5.7 (--configure):
 subprocess installed post-installation script returned error exit status 1