Linux centos 7.9下mysql5.7的安装

Linux centos 7.9下mysql5.7的安装

1 获得镜像仓库
wget https://dev.mysql.com/get/mysql80-community-release-el7-10.noarch.rpm
yum -y localinstall mysql80-community-release-el7-10.noarch.rpm

2 修改mysql.repo文件
vi /etc/yum.repos.d/mysql.repo
内容为

[mysql57-community]
name=MySQL 5.7 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.7-community/el/7/$basearch
enabled=1  #此处修改为1
gpgcheck=0 #此处修改为0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql-2022
       file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

[mysql80-community]
name=MySQL 8.0 Community Server
baseurl=http://repo.mysql.com/yum/mysql-8.0-community/el/7/$basearch
enabled=0   # 此处修改为0 
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql-2022
       file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

3 安装
yum -y install mysql-community-server net-tools
结束后进行启动开机启动设置和初次期动
systemctl enable mysqld && systemctl start mysqld

4 获得初始密码
cat /var/log/mysqld.log | grep password

5 登录数据库
mysql -u root -p'password'

6 初次登陆后建议修改密码
alter user root@localhost identified by 'new-password'
flush privileges;

完成