> useradd -s /sbin/nologin -M mysql

> tar xf mysql-5.6.34-linux-glibc2.5-x86_64.tar.gz

> mv mysql-5.6.34-linux-glibc2.5-x86_64 mysql56

> cp /data/mysql56/support-files/my-default.cnf /etc/my.cnf

[client]
port = 3306
socket = /data/mysql56/mysql.sock
default-character-set = utf8
[mysqld]
skip-name-resolve
user = mysql
basedir = /data/mysql56
datadir = /data/mysql56/data
port = 3306
server_id = 10
socket = /data/mysql56/mysql.sock
pid-file = /data/mysql56/mysql.pid
log-error = /data/mysql56/data/mysql.err
log-bin = /data/mysql56/data/mysql-bin
character-set-server = utf8

> chown -R mysql.mysql /data/mysq56
> /data/mysql56/scripts/mysql_install_db --defaults-file=/etc/my.cnf --user=mysql --basedir=/data/mysql56 --datadir=/data/mysql56/data

> yum -y install autoconf

> cp /data/mysql56/support-files/mysql.server /etc/init.d/mysqld
> chmod 755 /etc/init.d/mysqld

> sed -i 's#/usr/local/mysql#/data/mysql56#g' /data/mysql56/bin/mysqld_safe /etc/init.d/mysqld

> service mysqld start

> chkconfig --add mysqld
> chkconfig mysqld on
> chkconfig --list mysqld

> echo 'export PATH=/data/mysql56/bin:$PATH'  /etc/profile
> source /etc/profile

> mysqladmin -u root password '123456'

> mysql -uroot -p

> select user,host from mysql.user;

> drop user "root"@"::1";
> drop user ""@"localhost";
> drop user ""@"localhost.localdomain";
> drop user "root"@"localhost.localdomain";

> drop database test;