rpm -qa|grep mariadb // 查询出来已安装的mariadb

rpm -e --nodeps 文件名 // 卸载mariadb，文件名为上述命令查询出来的文件

yum -y install gcc gcc-c++ ncurses ncurses-devel cmake bison

5.7/5.7解压改名

chmod -R 755 mysql/

chown -R lbd.lbd mysql/

lbd用户默认已经创建 有人喜欢用mysql用户

rm /etc/my.cnf

mkdir –p /usr/local/mysql/data

mkdir –p /var/lib/mysql/

bin/mysqld –initialize --user=lbd basedir=/usr/local/mysql --datadir=/usr/local/mysql/data

haoglu1Gw6;c各自不同的密码

bin/mysql_ssl_rsa_setup --datadir=/usr/local/mysql/data

vim /etc/my.cnf

[mysql]

设置mysql客户端默认字符集

default-character-set=utf8

[mysqld]

skip-name-resolve

#设置3306端口

port = 3306

设置mysql的安装目录

basedir=/usr/local/mysql

设置mysql数据库的数据的存放目录

datadir=/usr/local/mysql/data

允许最大连接数

max_connections=200

服务端使用的字符集默认为8比特编码的latin1字符集

character-set-server=utf8

创建新表时将使用的默认存储引擎

default-storage-engine=INNODB

max_allowed_packet=16M

cp support-files/mysql.server /etc/init.d/mysqld

vim /etc/init.d/mysqld

basedir=/usr/local/mysql

datadir=/usr/local/mysql/bin

屏蔽

#lockdir=‘/var/lock/subsys‘

#lock_file_path="$lockdir/mysql"

cd /usr/local

chown -R lbd.lbd mysql/

service mysqld start

ln -s /usr/local/mysql/bin/mysql /usr/bin/mysql

chkconfig --add mysqld #增加mysqld服务

chkconfig --list #列出所有的系统服务

chkconfig --level 35 mysqld on

#设定mysqld在等级3和5为开机运行服务

mysql –u root –p

之前的密码

SET PASSWORD = PASSWORD(‘lbd123‘);重置密码

grant all privileges on . to [email protected]%‘ identified by ‘lbd123‘;

FLUSH PRIVILEGES;

原文：http://blog.51cto.com/12102819/2108242