title: Error Starting MariaDB
body: <p>I get the following error when starting MariaDB:</p>
  
  <pre><code># systemctl status -l mariadb.service
  ● mariadb.service - MariaDB database server
     Loaded: loaded (/usr/lib/systemd/system/mariadb.service; disabled; vendor preset: disabled)
    Drop-In: /etc/systemd/system/mariadb.service.d
             └─migrated-from-my.cnf-settings.conf
     Active: failed (Result: exit-code) since Fri 2016-06-03 10:44:56 UTC; 10min ago
    Process: 18624 ExecStart=/usr/sbin/mysqld $MYSQLD_OPTS $_WSREP_NEW_CLUSTER (code=exited, status=1/FAILURE)
   Main PID: 18624 (code=exited, status=1/FAILURE)
     Status: "MariaDB server is down"
     CGroup: /system.slice/mariadb.service
             ├─382 /bin/sh /usr/bin/mysqld_safe --basedir=/usr
             └─538 /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --log-error=/var/log/mariadb
  /mariadb.log --pid-file=/var/run/mariadb/mariadb.pid --socket=/var/lib/mysql/mysql.sock
  
  Jun 03 10:44:56 ms5l-hbpw.accessdomain.com mysqld[18624]: InnoDB: Error number 11 means 'Resource temporarily unavailable'.
  Jun 03 10:44:56 ms5l-hbpw.accessdomain.com mysqld[18624]: InnoDB: Some operating system error numbers are described at
  Jun 03 10:44:56 ms5l-hbpw.accessdomain.com mysqld[18624]: InnoDB: http://dev.mysql.com/doc/refman/5.6/en/operating-system-error-codes.html
  Jun 03 10:44:56 ms5l-hbpw.accessdomain.com mysqld[18624]: 2016-06-03 10:44:56 139898349344896 [ERROR] InnoDB: Can't open './ibdata1'
  Jun 03 10:44:56 ms5l-hbpw.accessdomain.com mysqld[18624]: 2016-06-03 10:44:56 139898349344896 [ERROR] InnoDB: Could not open or create the sys
  tem tablespace. If you tried to add new data files to the system tablespace, and it failed here, you should now edit innodb_data_file_path in
  my.cnf back to what it was, and remove the new ibdata files InnoDB created in this failed attempt. InnoDB only wrote those files full of zeros
  , but did not yet use them in any way. But be careful: do not remove old data files which contain your precious data!
  Jun 03 10:44:56 ms5l-hbpw.accessdomain.com mysqld[18624]: 2016-06-03 10:44:56 139898349344896 [ERROR] Plugin 'InnoDB' init function returned e
  rror.
  Jun 03 10:44:56 ms5l-hbpw.accessdomain.com mysqld[18624]: 2016-06-03 10:44:56 139898349344896 [ERROR] Plugin 'InnoDB' registration as a STORAG
  E ENGINE failed.
  Jun 03 10:44:56 ms5l-hbpw.accessdomain.com mysqld[18624]: 2016-06-03 10:44:56 139898349344896 [Note] Plugin 'FEEDBACK' is disabled.
  Jun 03 10:44:56 ms5l-hbpw.accessdomain.com mysqld[18624]: 2016-06-03 10:44:56 139898349344896 [ERROR] Unknown/unsupported storage engine: Inno
  DB
  Jun 03 10:44:56 ms5l-hbpw.accessdomain.com mysqld[18624]: 2016-06-03 10:44:56 139898349344896 [ERROR] Aborting
  </code></pre>
  
  <p>I also looked at this journalctl - it had much the same information.</p>
  
  <p>I am not familiar with 'InnoDB'. All that I understand is that I need to remove some things, but there is a warning not to remove the wrong thing. What do I do??</p>