Linux安装MySQL8.0.11

1. 去官网下载安装包

https://dev.mysql.com/downloads/mysql/

如果你的系统是32位选择第一个，64位选择第二个

也可以用wget 下载

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

解压文件

tar -zxvf mysql-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

mkdir data

4.创建 mysql 用户组和 mysql 用户

groupadd mysql

useradd -g mysql mysql

5.改变 mysql 目录权限

chown -R mysql.mysql /usr/local/mysql/

或者

chown -R mysql .

chgrp -R mysql .

注意最后有一点

6.初始化数据库

创建mysql_install_db安装文件

mkdir mysql_install_db
chmod 777 ./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 (mysqld 8.0.11) initializing of server in progress as process 5826

 [Server] A temporary password is generated for root@localhost: twi=Tlsi<0O!

/usr/local/mysql/bin/mysqld (mysqld 8.0.11) initializing of server has completed

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

yum install libnuma

yum -y install  numactl

yum install libaio1 libaio-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/mysql   
    datadir = /usr/local/mysql/data
    socket = /usr/local/mysql/mysql.sock
    character-set-server=utf8
    port = 3306
   sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
 [client]
   socket = /usr/local/mysql/mysql.sock
   default-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

cp mysql.server /etc/init.d/mysql
chmod +x /etc/init.d/mysql

添加到系统服务

chkconfig --add mysql

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

chmod +x /etc/rc.d/init.d/mysqld

chkconfig --add mysqld

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

export PATH=$PATH:/usr/local/mysql/bin:/usr/local/mysql/lib

export PATH

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>use mysql

mysql>update user set host='%' where user='root' limit 1;

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

参考文章：

http://baijiahao.baidu.com/s?id=1584072431498789934&wfr=spider&for=pc

https://www.cnblogs.com/oldAlcazar/p/6835573.html