Linux中安装MySQL详细教程

前言

现在红帽Linux上默认是没有yum源的

yum软件仓库里面只有MariaDB的安装包所以我们需要自己先配置yum源

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实验准备（以下操作在VMware中进行）

一台Linux主机 （我这里用的是RHEL7.4）
已经联网
不要挂载yum镜像

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1、配置yum源

下载yum源（我这里已经找好了）

wget 'https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm'

yum源下载链接：MySQL

安装yum源

rpm -Uvh mysql57-community-release-el7-11.noarch.rpm

查看有哪些版本的mysql

yum repolist all | grep mysql

2、安装

yum install -y mysql-community-server

3、启动mysql

注意启动的时候是mysqld而不是mysql

systemctl start mysqld

查看状态

systemctl status mysqld

4、登录数据库，修改数据库密码

找到密码: 红框的地方就是密码

[root@localhost ~]# grep 'temporary password' /var/log/mysqld.log
2020-12-18T15:15:55.572640Z 1 [Note] A temporary password is generated for root@localhost: 9sX3oDXGti)P
密码：9sX3oDXGti)P

5、登录MySQL

[root@localhost ~]# mysql -uroot -p'9sX3oDXGti)P'
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.32

Copyright (c) 2000, 2020, 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>    ---出现这个表示登录成功

查看数据库

mysql>show databases;     ---这里会报错，需要重新修改密码
ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.

修改密码

mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'XXGC.lab123';  
Query OK, 0 rows affected (0.01 sec)     ---表示修改成功

刷新

mysql> flush privileges;   
Query OK, 0 rows affected (0.00 sec)

退出

mysql> exit

6、使用新密码登录数据库

[root@localhost ~]# mysql -uroot -p'XXGC.lab123'
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.7.32 MySQL Community Server (GPL)

Copyright (c) 2000, 2020, 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>     ---登录成功

查看一下

mysql> show databses;  
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
4 rows in set (0.00 sec)

mysql>

以上就是在RHEL7.4中配置MySQL的教程