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系统城分享CentOS7下安装MySQL5.7.39的详细过程

时间：2022-09-11来源：www.pcxitongcheng.com作者：电脑系统城

一、下载

下载地址：https://dev.mysql.com/downloads/mysql/

二、解压

1	`tar` `xvf mysql-5.7.39-1.el7.x86_64.rpm-bundle.tar`

三、卸载已安装包

1 2	`rpm -qa\|grep` `mariadb` `mariadb-libs-5.5.68-1.el7.x86_64`

1	`rpm -e --nodeps mariadb-libs-5.5.68-1.el7.x86_64`

四、按顺序安装rpm包

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6 rpm -ivh mysql-community-common-5.7.39-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-5.7.39-1.el7.x86_64.rpm
rpm -ivh mysql-community-client-5.7.39-1.el7.x86_64.rpm
// 如果安装 mysql-community-server-5.7.39-1.el7 报 libaio.so.1 依赖错误，需先安装 libaio-0.3.109-13.el7.x86_64.rpm
rpm -ivh libaio-0.3.109-13.el7.x86_64.rpm
rpm -ivh mysql-community-server-5.7.39-1.el7.x86_64.rpm

安装 server 还可能报错：

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4 rpm -ivh mysql-community-server-5.7.39-1.el7.x86_64.rpm
warning: mysql-community-server-5.7.39-1.el7.x86_64.rpm: Header V4 RSA/SHA256 Signature, key ID 3a79bd29: NOKEY
error: Failed dependencies:
net-tools is needed by mysql-community-server-5.7.39-1.el7.x86_64

执行以下命令安装 net-tools 解决：

1	`yum` `install` `net-tools -y`

五、启动

1	`systemctl start mysqld`

六、找到初始密码

1	`cat` `/var/log/mysqld.log \|` `grep` `'password is generated'`

七、修改密码并授权

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3 alter user 'root'@'localhost' identified by 'xxxxxx';
grant all privileges on *.* to 'root'@'%' identified by 'xxxxxx' with grant option;
flush privileges;