CentOS7下安装MySQL5.7.39的详细过程 CentOS7下安装MySQL5.7.39的详细过

一、下载 【CentOS7下安装MySQL5.7.39的详细过程】下载地址：https://dev.mysql.com/downloads/mysql/

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二、解压

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

三、卸载已安装包

rpm -qa|grep mariadbmariadb-libs-5.5.68-1.el7.x86_64

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

四、按顺序安装rpm包

rpm -ivh mysql-community-common-5.7.39-1.el7.x86_64.rpmrpm -ivh mysql-community-libs-5.7.39-1.el7.x86_64.rpmrpm -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.rpmrpm -ivh libaio-0.3.109-13.el7.x86_64.rpmrpm -ivh mysql-community-server-5.7.39-1.el7.x86_64.rpm

安装 server 还可能报错：

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: NOKEYerror: 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：

yum install net-tools -y

五、启动

systemctlstartmysqld

六、找到初始密码

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

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七、修改密码并授权

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

八、开启防火墙，允许外网访问