MySQL 8.0二进制包安装

安装包下载

1.官方下载

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

服务器中操作

1.删除之前安装的MySQL包

[root@server02 etc]# rpm -qa | grep mariadb
mariadb-libs-5.5.68-1.el7.x86_64
mariadb-devel-5.5.68-1.el7.x86_64
[root@server02 etc]# yum erase -y mariadb-libs-5.5.68-1.el7.x86_64

2.解压缩

[root@server02 ~]# tar xf mysql-8.0.12-linux-glibc2.12-x86_64.tar.xz 
[root@server02 ~]# mv mysql-8.0.12-linux-glibc2.12-x86_64 /usr/local/mysql
[root@server02 ~]# cd /usr/local/mysql/
[root@server02 mysql]# groupadd mysql
[root@server02 mysql]# useradd -r -g mysql -s /sbin/nologin mysql
[root@server02 mysql]# mkdir /usr/local/mysql/data
[root@server02 mysql]# mkdir /usr/local/mysql/etc
[root@server02 mysql]# mkdir /usr/local/mysql/log
[root@server02 mysql]# chown -R mysql:mysql /usr/local/mysql/
[root@server02 mysql]# vim /usr/local/mysql/etc/my.cnf

3.编辑mysql配置文件

[root@server02 etc]# cat /usr/local/mysql/etc/my.cnf 
[mysql]
port = 3306
socket = /usr/local/mysql/data/mysql.sock
[mysqld]
port = 3306
mysqlx_port = 33060
mysqlx_socket = /usr/local/mysql/data/mysqlx.sock
basedir = /usr/local/mysql
datadir = /usr/local/mysql/data
socket = /usr/local/mysql/data/mysql.sock
pid-file = /usr/local/mysql/data/mysqld.pid
log-error = /usr/local/mysql/log/error.log
#这个就是用之前的身份认证插件
default-authentication-plugin = mysql_native_password
#保证日志的时间正确
log_timestamps = SYSTEM

4.初始化数据库,并查看日志

[root@server02 mysql]# bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data
[root@server02 mysql]# cp /usr/local/mysql/support-files/mysql.server  /etc/init.d/mysqld
[root@server02 mysql]# /etc/init.d/mysqld start
切记要把/etc/my.cnf删除掉，要不然启动时会报错。
[root@server02 etc]# /etc/init.d/mysqld start
Starting MySQL.... SUCCESS! 

[root@server02 ~]# tailf /usr/local/mysql/log/error.log
2020-12-29T01:02:05.915655Z 0 [Warning] [MY-011070] [Server] 'Disabling symbolic links using --skip-symbolic-links (or equivalent) is the default. Consider not using this option as it' is deprecated and will be removed in a future release.
2020-12-29T09:02:05.916174+08:00 0 [System] [MY-013169] [Server] /usr/local/mysql/bin/mysqld (mysqld 8.0.12) initializing of server in progress as process 8108
2020-12-29T09:02:18.045798+08:00 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: qr11AqDgis.d
2020-12-29T09:02:23.220369+08:00 0 [System] [MY-013170] [Server] /usr/local/mysql/bin/mysqld (mysqld 8.0.12) initializing of server has completed

记住这个临时密码，后边要用到

5.配置环境变量

[root@server02 etc]# vim /etc/profile
PATH=$PATH:$HOME/bin:/usr/local/mysql/bin
[root@server02 etc]# source /etc/profile

6.登录并配置远程登录

[root@server02 etc]# source /etc/profile
[root@server02 etc]# mysql -u root -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or g.
Your MySQL connection id is 8
Server version: 8.0.12

Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.

mysql>

mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY '123456!';
Query OK, 0 rows affected (0.02 sec)
mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
4 rows in set (0.01 sec)
 
mysql> use mysql;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
 
Database changed
mysql> select host, user, authentication_string, plugin from user;
+-----------+------------------+------------------------------------------------------------------------+-----------------------+
| host      | user             | authentication_string                                                  | plugin                |
+-----------+------------------+------------------------------------------------------------------------+-----------------------+
| localhost | mysql.infoschema | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED | caching_sha2_password |
| localhost | mysql.session    | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED | caching_sha2_password |
| localhost | mysql.sys        | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED | caching_sha2_password |
| localhost | root             | *611725B3AA4055897CDB648E55E0A0EA856389E2                              | mysql_native_password |
+-----------+------------------+------------------------------------------------------------------------+-----------------------+
4 rows in set (0.00 sec)
#这里就可以看到root@localhost这里的密码已经是mysql_native_password方式了
#这就是创建一个远程用户登录
mysql>  create user 'root'@'%' identified by '123456!';
Query OK, 0 rows affected (0.05 sec)
 
mysql> grant all privileges on *.* to 'root'@'%' with grant option;
Query OK, 0 rows affected (0.04 sec)
 
mysql> select host, user, authentication_string, plugin from user;
+-----------+------------------+------------------------------------------------------------------------+-----------------------+
| host      | user             | authentication_string                                                  | plugin                |
+-----------+------------------+------------------------------------------------------------------------+-----------------------+
| %         | root             | *43CAAB27D90B4E33EC75DEEFA02577F7E2BACE93                              | mysql_native_password |
| localhost | mysql.infoschema | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED | caching_sha2_password |
| localhost | mysql.session    | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED | caching_sha2_password |
| localhost | mysql.sys        | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED | caching_sha2_password |
| localhost | root             | *611725B3AA4055897CDB648E55E0A0EA856389E2                              | mysql_native_password |
+-----------+------------------+------------------------------------------------------------------------+-----------------------+
5 rows in set (0.00 sec)
 
mysql> exit
Bye