在初始化mysql时，报错

# scripts/mysql_install_db --user=mysql --datadir=/data/mysql --basedir=/usr/local/mysql

Could not open required defaults file: /root/.my.cnf

Fatal error in defaults handling. Program aborted

Installing MariaDB/MySQL system tables in '/data/mysql' ...

/usr/local/mysql/bin/mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory

Installation of system tables failed!  Examine the logs in

/data/mysql for more information.

The problem could be conflicting information in an external

my.cnf files. You can ignore these by doing:

shell> /usr/local/mysql/scripts/scripts/mysql_install_db --defaults-file=~/.my.cnf

You can also try to start the mysqld daemon with:

shell> /usr/local/mysql/bin/mysqld --skip-grant --general-log &

and use the command line tool /usr/local/mysql/bin/mysql

to connect to the mysql database and look at the grant tables:

shell> /usr/local/mysql/bin/mysql -u root mysql

mysql> show tables;

Try 'mysqld --help' if you have problems with paths.  Using

--general-log gives you a log in /data/mysql that may be helpful.

The latest information about mysql_install_db is available at

https://mariadb.com/kb/en/installing-system-tables-mysql_install_db

MariaDB is hosted on launchpad; You can find the latest source and

email lists at http://launchpad.net/maria

Please check all of the above before submitting a bug report

at http://mariadb.org/jira

报错：/usr/local/mysql/bin/mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory，因为缺少libaio模块

解决：

yum search libaio

yum -y install libaio

再次执行scripts/mysql_install_db 即可成功，启动mysqld..SUCCESS