centos7 安装 Mysql 5.7.27，详细完整教程

rpm -Uvh mysql57-community-release-el7-10.noarch.rpm

yum install -y mysql-community-server

systemctl start mysqld.service

systemctl status mysqld.service

grep ‘temporary password‘ /var/log/mysqld.log 

mysql -uroot -p

mysql> set global validate_password_policy=0;
mysql> set global validate_password_length=1;

ALTER USER ‘root‘@‘localhost‘ IDENTIFIED BY ‘yourpassword‘;

GRANT ALL PRIVILEGES ON *.* TO ‘root‘@‘%‘ IDENTIFIED BY ‘yourpassword‘ WITH GRANT OPTION;
 
FLUSH PRIVILEGES;

systemctl enable mysqld
systemctl daemon-reload

vim /etc/my.cnf

# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html
 
[mysql]
default-character-set=utf8
 
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
default-storage-engine=INNODB
character_set_server=utf8
 
symbolic-links=0
 
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

service mysqld restart

firewall-cmd --state
firewall-cmd --zone=public --add-port=3306/tcp --permanent
firewall-cmd --reload

rpm -qa | grep mysql

yum -y remove mysql57-community-release-el7-10.noarch