package mysql-server-5.7 5.7.18-0ubuntu0.16.10.1 failed to install/upgrade: el subproceso instalado el script post-installation devolvió el código de salida de error 1

[WaltTrappa]

I don't know.
At machine start, jumps a notice about a problem and reporting it.
It's all that I know

ProblemType: Package
DistroRelease: Ubuntu 16.10
Package: mysql-server-5.7 5.7.18-0ubuntu0.16.10.1
ProcVersionSignature: Ubuntu 4.8.0-49.52-generic 4.8.17
Uname: Linux 4.8.0-49-generic x86_64
ApportVersion: 2.20.3-0ubuntu8.2
AptOrdering:
 libfreetype6:amd64: Install
 flashplugin-installer:amd64: Install
 NULL: ConfigurePending
Architecture: amd64
Date: Wed May 10 02:47:10 2017
ErrorMessage: el subproceso instalado el script post-installation devolvió el código de salida de error 1
InstallationDate: Installed on 2017-02-04 (97 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
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: ['mydb', 'debian-5.7.flag', 'ibdata1', 'ib_logfile0', 'persdept', 'sys', 'mysql', 'ib_logfile1', 'ib_buffer_pool', 'performance_schema', 'auto.cnf', 'SCA17']
ProcCmdline: BOOT_IMAGE=/boot/vmlinuz-4.8.0-49-generic.efi.signed root=UUID=9d996116-5dd9-4186-9249-53c4f00f9cf1 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 dpkg 1.18.10ubuntu1
 apt 1.3.4
SourcePackage: mysql-5.7
Title: package mysql-server-5.7 5.7.18-0ubuntu0.16.10.1 failed to install/upgrade: el subproceso instalado el script post-installation devolvió el código de salida de error 1
UpgradeStatus: Upgraded to yakkety on 2017-02-05 (96 days ago)
modified.conffile..etc.init.mysql.conf: [modified]
modified.conffile..etc.mysql.mysql.conf.d.mysqld.cnf: [modified]
mtime.conffile..etc.init.mysql.conf: 2017-04-22T07:57:21.118305
mtime.conffile..etc.mysql.mysql.conf.d.mysqld.cnf: 2017-03-25T06:59:07.704662
upstart.mysql.override: manual

[Christian Ehrhardt  (paelzer)]

Form the log:
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

Hi,
thank you for your report - this is a known issue the Team is working on and there are already some workarounds documented so I'm closing as a dup to that.