无网络环境安装mysql8.0

Posted 2022-01-11 暖暖miss

安装包链接：链接：https://pan.baidu.com/s/1Naa_BplIc2IDhye3zTJkzw

提取码：2jo7

1.解压安装：

tar -xvf mysql-8.0.22-el7-x86_64.tar.gz -C /usr/local/

mv mysql-8.0.22-el7-x86_64.tar.gz  mysql

2.创建用户

groupadd mysql

useradd -g mysql mysql

3.配置：

vi /etc/my.cnf

[client]

port=3306

socket=/var/lib/mysql/mysql.sock

[mysqld]

port=3306

user=mysql

#datadir=/var/lib/mysql

socket=/var/lib/mysql/mysql.sock

basedir=/usr/local/mysql

datadir=/usr/local/mysql/data

遇到的问题：​

ERROR 2002 (HY000): Cant connect to local MySQL server through socket

原因：因为my.cnf中我配置了 mysql.sock，而在client中我没有配置，在client中添加即可

4、初始化

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

​

5、创建sock文件夹与命令链接

mkdir -p /var/lib/mysql

chown -R mysql:mysql  /var/lib/mysql

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

6、启动服务，修改passwd

 /usr/local/mysql/support-files/mysql.server start

mysql -uroot -p 

输入初始化后出现的passwd即可

更改密码

ALTER USER root@localhost IDENTIFIED BY Root@1234;

7、配置远程访问

use mysql;

update user set host=% where user=root;

flush prilieges;

8、开启自启动

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

chkconfig mysql on

chkconfig --add mysql

​