package mysql-common 5.6.28-0ubuntu0.15.10.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2

[The Computer Guy]

I don't know what exactly happed because I was starting up a minecraft server while I was updating stuff.

ProblemType: Package
DistroRelease: Ubuntu 15.10
Package: mysql-common 5.6.28-0ubuntu0.15.10.1
ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6
Uname: Linux 4.2.0-19-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
Date: Tue Jan 26 16:45:02 2016
Dependencies:

DuplicateSignature: package:mysql-common:5.6.28-0ubuntu0.15.10.1:subprocess installed post-installation script returned error exit status 2
ErrorMessage: subprocess installed post-installation script returned error exit status 2
InstallationDate: Installed on 2015-11-05 (82 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
Logs.var.log.daemon.log:

Logs.var.log.mysql.error.log:
MySQLConf.etc.mysql.my.cnf: [MySQL]
MySQLConf.etc.mysql.mysql.cnf: Error: [Errno 2] No such file or directory: '/etc/mysql/mysql.cnf'
PackageArchitecture: all
ProcCmdline: BOOT_IMAGE=/vmlinuz-4.2.0-19-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-common 5.6.28-0ubuntu0.15.10.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.init.d.mysql: [deleted]
modified.conffile..etc.init.mysql.conf: [deleted]
modified.conffile..etc.mysql.conf.d.mysql.cnf: [deleted]
modified.conffile..etc.mysql.conf.d.mysqldump.cnf: [deleted]
modified.conffile..etc.mysql.debian.start: [deleted]
modified.conffile..etc.mysql.my.cnf.fallback: [deleted]
modified.conffile..etc.mysql.mysql.cnf: [deleted]
modified.conffile..etc.mysql.mysql.conf.d.mysqld.cnf: [deleted]
modified.conffile..etc.mysql.mysql.conf.d.mysqld.safe.syslog.cnf: [deleted]

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[David Baucum (maxolasersquad)]

After trying to completely uninstall and reinstall all of the mysql packages, I was finally able to get it to install without hitting this error by running `sudo touch /etc/mysql/my.cnf.fallback` which I gathered because of the output from apt-get.

Unpacking mysql-common (5.6.30-0ubuntu0.15.10.1) ...
Setting up mysql-common (5.6.30-0ubuntu0.15.10.1) ...
update-alternatives: error: alternative path /etc/mysql/my.cnf.fallback doesn't exist
dpkg: error processing package mysql-common (--configure):
 subprocess installed post-installation script returned error exit status 2
Errors were encountered while processing:
 mysql-common

[Daniel Cordey (dc-b)]

Excellent, that's the point. It works for me too !

[The Computer Guy (rosscomputerguy)]

David Baucum, thank you. That touch command fixed it.