yum install the specified version mysql5.7
- Installation dependent environment
# yum install -y yum-utils wget
- Download warehouse pack
# wget https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm
- Install warehouse pack
# rpm -ivh mysql80-community-release-el7-3.noarch.rpm
- Update yum warehouse
# yum makecache
- View available versions
# yum repolist all | grep mysql
The latest version is enabled by default and needs to be changed to the required version
- Modify to the required version, that is, disable the unnecessary version of mysql in the yum repository and enable the required version
# yum-config-manager --disable mysql80-community
# yum-config-manager --enable mysql57-community
- Check if the required version is enabled
# yum repolist all | grep mysql
- Start installing mysql
# yum install mysql-community-server -y
- Start mysql
# systemctl start mysqld
- Version 5.7 mysql automatically generates a temporary password for the first time, it needs to be modified before it can be used normally
## 查看临时密码
# grep 'temporary password' /var/log/mysqld.log
## 登录mysql
# mysql -uroot -p
## 修改密码
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass0!';
mysql password-free login
- Login without password
Modify my.cnf, find [mysqld], add skip-grant-tables or –skip-grant-tables below, restart mysql to log in without password
