Linux在线安装Mysql教程(超详细超简单 全程复制语句即可)

Linux在线安装Mysql教程(超详细超简单 全程复制语句即可)

Linux在线安装Mysql

• 安装mysql
• • 1.下载yum Repository
  • 2.安装yum Repository
  • 3.安装mysql5.7的服务
  • 4.设置开机自启动
  • 5.启动mysql
  • 6.查看状态
  • 7.获取临时密码
  • 8.登录mysql
  • 9.关闭密码复杂验证
  • 10.设置密码
  • 11.修改权限
  • 12.卸载yum Repository
• 卸载mysql
• • 1.删除依赖包
  • 2.清理文件

安装mysql

1.下载yum Repository

wget -i -c http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm
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如果不行就用下面这个命令

wget http://repo.mysql.com/mysql-community-release-el7-10.noarch.rpm
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2.安装yum Repository

yum -y install mysql57-community-release-el7-10.noarch.rpm
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3.安装mysql5.7的服务

yum -y install mysql-community-server
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如果出现安装失败，原因是：Mysql的GPG升级了，需要重新获取，使用以下命令即可

rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022
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之后再将安装服务的命令重新执行一遍

yum -y install mysql-community-server
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4.设置开机自启动

systemctl enable mysqld.service
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5.启动mysql

systemctl start mysqld.service
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6.查看状态

systemctl status mysqld.service
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7.获取临时密码

grep "password" /var/log/mysqld.log
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8.登录mysql

mysql -uroot -p 
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9.关闭密码复杂验证

set global validate_password_policy=0;
set global validate_password_length=1;
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10.设置密码

alter user user() identified by "123123";
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11.修改权限

use mysql;
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123123' WITH GRANT OPTION;  
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刷新权限

flush privileges;  
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查看权限

select host,user,authentication_string from user; 
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12.卸载yum Repository

防止每次自动更新，卸载yum Repository先退出mysql再输入下面的命令

yum -y remove mysql57-community-release-el7-10.noarch
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卸载mysql

如果安装的过程中出现了错误，需要卸载mysql ，卸载方法如下：

1.删除依赖包

rpm -qa | grep -i mysql
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yum remove mysql-community mysql-community-server mysql-community-libs mysql-community-common
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2.清理文件

find / -name mysql
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rm -rf 文件名
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原文链接：https://blog.csdn.net/weixin_49184448/article/details/134719747