centos7-MYSQL5.7详细安装步骤

朱雀 2022-12-27 15:27 256阅读 0赞

参考此文：[https://blog.csdn.net/wohiusdashi/article/details/89358071][https_blog.csdn.net_wohiusdashi_article_details_89358071]

# MYSQL5.7详细安装步骤： #

### 0、更换yum源 ###

1、打开 mirrors.aliyun.com，选择centos的系统，点击帮助

2、执行命令：yum install wget -y

3、改变某些文件的名称

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup

4、执行更换yum源的命令

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo

5、更新本地缓存

yum clean all

yum makecache

### 1、查看系统中是否自带安装mysql ###

yum list installed | grep mysql

![在这里插入图片描述][202012121333130.png_pic_center]

### 2、删除系统自带的mysql及其依赖（防止冲突） ###

yum -y remove mysql-libs.x86_64

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NzQwODQx_size_16_color_FFFFFF_t_70_pic_center]

### 3、安装wget命令 ###

yum install wget -y

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NzQwODQx_size_16_color_FFFFFF_t_70_pic_center 1]

### 4、给CentOS添加rpm源，并且选择较新的源 ###

wget dev.mysql.com/get/mysql-community-release-el6-5.noarch.rpm

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NzQwODQx_size_16_color_FFFFFF_t_70_pic_center 2]

### 5、安装下载好的rpm文件 ###

yum install mysql-community-release-el6-5.noarch.rpm -y

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NzQwODQx_size_16_color_FFFFFF_t_70_pic_center 3]

### 6、安装成功之后，会在/etc/yum.repos.d/文件夹下增加两个文件 ###

![在这里插入图片描述][20201212133424965.png_pic_center]

### 7、修改mysql-community.repo文件 ###

原文件：

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NzQwODQx_size_16_color_FFFFFF_t_70_pic_center 4]

修改之后：

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NzQwODQx_size_16_color_FFFFFF_t_70_pic_center 5]

### 8、使用yum安装mysql ###

yum install mysql-community-server -y

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NzQwODQx_size_16_color_FFFFFF_t_70_pic_center 6]

### 9、启动mysql服务并设置开机启动 ###

#启动之前需要生成临时密码，需要用到证书，可能证书过期，需要进行更新操作
    yum update -y
    #启动mysql服务
    service mysqld start
    #设置mysql开机启动
    chkconfig mysqld on

### 10、获取mysql的临时密码 ###

grep "password" /var/log/mysqld.log

![在这里插入图片描述][20201212133512856.png_pic_center]

### 11、使用临时密码登录 ###

mysql -uroot -p
    #输入密码

### 12、修改密码 ###

set global validate_password_policy=0;
    set global validate_password_length=1;
    ALTER USER 'root'@'localhost' IDENTIFIED BY '123456';

### 13、修改远程访问权限 ###

grant all privileges on *.* to 'root'@'%' identified by '123456' with grant option;
    flush privileges;

### 14、设置字符集为utf-8 ###

#在[mysqld]部分添加：
    character-set-server=utf8
    #在文件末尾新增[client]段，并在[client]段添加：
    default-character-set=utf8

错误解决：  
https://blog.csdn.net/qq\_38417808/article/details/81291588  
https://www.freesion.com/article/5992892312/

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NzQwODQx_size_16_color_FFFFFF_t_70_pic_center 7]

[https_blog.csdn.net_wohiusdashi_article_details_89358071]: https://blog.csdn.net/wohiusdashi/article/details/89358071
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