1. 去官网下载安装包

wgethttps://dev.mysql.com/get/Downloads/MySQL-8.0/mysql-8.0.11-linux-glibc2.12-i686.tar.gz

解压文件

tar-zxvfmysql-8.0.11-linux-glibc2.12-i686.tar.gz

2 移动压缩包到usr/local目录下,并重命名文件

mv/root/mysql-8.0.11-linux-glibc2.12-i686/usr/local/mysql

3.在MySQL根目录下新建一个文件夹data,用于存放数据

mkdirdata

4.创建 mysql 用户组和 mysql 用户

groupaddmysqluseradd-gmysqlmysql

5.改变 mysql 目录权限

chown-Rmysql.mysql/usr/local/mysql/或者chown-Rmysql.chgrp-Rmysql.

注意最后有一点

6.初始化数据库

创建mysql_install_db安装文件

mkdirmysql_install_dbchmod777./mysql_install_db

初始化

bin/mysqld--initialize--user=mysql--basedir=/usr/local/mysql--datadir=/usr/local/mysql/data//初始化数据库

或者

/usr/local/mysql/bin/mysqld--initialize--user=mysql/usr/local/mysql/bin/mysqld--initialize--user=mysql/usr/local/mysql/bin/mysqld(mysqld8.0.11)initializingofserverinprogressasprocess5826[Server]Atemporarypasswordisgeneratedforroot@localhost:twi=Tlsi<0O!/usr/local/mysql/bin/mysqld(mysqld8.0.11)initializingofserverhascompleted

记录好自己的临时密码：

twi=Tlsi<0O!

这里遇到了问题没有libnuma.so.1

zsh: command not found: mysqld
./bin/mysqld --initialize
./bin/mysqld: error while loading shared libraries: libnuma.so.1: cannot open shared object file: No such file or directory

2018-04-29 17:06:30 [WARNING] mysql_install_db is deprecated. Please consider switching to mysqld --initialize
2018-04-29 17:06:30 [ERROR] Can't locate the language directory.

需要安装 libnuma

yuminstalllibnumayum-yinstallnumactlyuminstalllibaio1libaio-dev

安装文件

7.mysql配置

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

修改my.cnf文件

vim /etc/my.cnf

[mysqld]basedir=/usr/local/mysqldatadir=/usr/local/mysql/datasocket=/usr/local/mysql/mysql.sockcharacter-set-server=utf8port=3306sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES[client]socket=/usr/local/mysql/mysql.sockdefault-character-set=utf8

esc保存

:wq 退出

8建立MySQL服务

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

cpmysql.server/etc/init.d/mysqlchmod+x/etc/init.d/mysql

添加到系统服务

chkconfig--addmysql

cp-a./support-files/mysql.server/etc/init.d/mysqldchmod+x/etc/rc.d/init.d/mysqldchkconfig--addmysqld

检查服务是否生效

chkconfig --list mysqld

9. 配置全局环境变量

编辑 / etc/profile 文件

# vi /etc/profile

在 profile 文件底部添加如下两行配置，保存后退出

exportPATH=$PATH:/usr/local/mysql/bin:/usr/local/mysql/libexportPATH

设置环境变量立即生效

source /etc/profile

10.启动MySQL服务

service mysql start

查看初始密码

cat /root/.mysql_secret

11.登录MySQL

mysql -uroot -p密码

修改密码：

SET PASSWORD FOR 'root'@localhost=PASSWORD('123456'); #对应的换成你自己的密码即可了。

12设置可以远程登录

mysql>usemysqlmysql>updateusersethost='%'whereuser='root'limit1;

刷新权限

mysql>flush privileges;

然后检查3306端口是否开放

netstat -nupl|grep 3306

开放3306端口

firewall -cmd --permanent --add-prot=3306/tcp

重启防火墙

firewall -cmd --reload