ubuntu mariadb 5.5 doesnt install with mysql 5.6 libraries
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