uninstall mysql 5.6 and force install of older version of mysql
see old versions available # aptitude versions mysql-common force older version of mysql # aptitude install mysql-common=5.5.41-0ubuntu0.14.04.1 prevent mysql-common updating (hold it via '=') # aptitude install mysql-common= install mariadb # aptitude install mariadb-server
verify
# dpkg -l | grep ii | egrep "mysql|maria" ii libmariadbclient18:amd64 5.5.41-1ubuntu0.14.04.1 amd64 MariaDB database client library ii libmysqlclient18:amd64 5.5.41-0ubuntu0.14.04.1 amd64 MySQL database client library ii mariadb-client-5.5 5.5.41-1ubuntu0.14.04.1 amd64 MariaDB database client binaries ii mariadb-client-core-5.5 5.5.41-1ubuntu0.14.04.1 amd64 MariaDB database core client binaries ii mariadb-common 5.5.41-1ubuntu0.14.04.1 all MariaDB common metapackage ii mariadb-server 5.5.41-1ubuntu0.14.04.1 all MariaDB database server (metapackage depending on the latest version) ii mariadb-server-5.5 5.5.41-1ubuntu0.14.04.1 amd64 MariaDB database server binaries ii mariadb-server-core-5.5 5.5.41-1ubuntu0.14.04.1 amd64 MariaDB database core server files ii mysql-apt-config 0.3.3-2ubuntu14.04 all Auto configuration for MySQL APT Repo. ii mysql-common 5.5.41-0ubuntu0.14.04.1 all MySQL database common files, e.g. /etc/mysql/my.cnf ii mysql-workbench-community 6.2.5-1ubu1404 amd64 MySQL Workbench ii php5-mysql 5.5.9+dfsg-1ubuntu4.7 amd64 MySQL module for php5