package mysql-server-5.7 5.7.12-0ubuntu1.1 failed to install/upgrade: подпроцесс установлен сценарий post-installation возвратил код ошибки 1

[Pavlic]

I ran
apt dist-upgrade

Output:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
2 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n]
Setting up mysql-server-5.7 (5.7.12-0ubuntu1.1) ...
insserv: warning: current start runlevel(s) (empty) of script `mysql' overrides LSB defaults (2 3 4 5).
insserv: warning: current stop runlevel(s) (0 1 2 3 4 5 6) of script `mysql' overrides LSB defaults (0 1 6).
mysql_upgrade: Got error: 2002: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) while connecting to the MySQL server
Upgrade process encountered error and will not continue.
mysql_upgrade failed with exit status 11
dpkg: error processing package mysql-server-5.7 (--configure):
 subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of mysql-server:
 mysql-server depends on mysql-server-5.7; however:
  Package mysql-server-5.7 is not configured yet.

dpkg: error processing package mysql-server (--configure):
 dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
                                                                                                          Errors were encountered while processing:
 mysql-server-5.7
 mysql-server
E: Sub-process /usr/bin/dpkg returned an error code (1)

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: mysql-server-5.7 5.7.12-0ubuntu1.1
ProcVersionSignature: Ubuntu 4.4.0-23.41-generic 4.4.10
Uname: Linux 4.4.0-23-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
Date: Sat May 21 18:47:08 2016
ErrorMessage: подпроцесс установлен сценарий post-installation возвратил код ошибки 1
InstallationDate: Installed on 2016-04-30 (20 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
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: ['mysql', 'auto.cnf', 'debian-5.7.flag', 'ib_buffer_pool', 'ibdata1', 'sys', 'ib_logfile1', 'mysqld_safe.pid', 'performance_schema', 'ib_logfile0', 'passwords']
ProcCmdline: BOOT_IMAGE=/boot/vmlinuz-4.4.0-23-generic.efi.signed root=UUID=f10cb6d8-d1bd-48b3-b3b4-b2423fa44af5 ro pcie_aspm=force acpi_osi=
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: mysql-5.7
Title: package mysql-server-5.7 5.7.12-0ubuntu1.1 failed to install/upgrade: подпроцесс установлен сценарий post-installation возвратил код ошибки 1
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.init.mysql.conf: [modified]
modified.conffile..etc.mysql.mysql.cnf: [modified]
modified.conffile..etc.mysql.mysql.conf.d.mysqld.cnf: [modified]
mtime.conffile..etc.init.mysql.conf: 2016-05-06T07:29:20.207757
mtime.conffile..etc.mysql.mysql.cnf: 2016-05-19T00:59:06.066112
mtime.conffile..etc.mysql.mysql.conf.d.mysqld.cnf: 2016-05-19T01:01:34.632123