Debian / Ubuntu:

• apt-get install mysql-server mysql-client
• service mysql stop
• rm /var/lib/mysql/ib_logfile*

CentOS 7 or later:

• yum -y install mariadb-server

Others:

• yum -y install mysql-server

Note that on some recent distributions, such as Fedora 20 or later, installing mysql will actually install mariadb.