CentOS 7.x 卸载删除MariaDB，重新安装

1、 卸载

rpm –qa | grep mariadb
yum remove mariadb

2、 删除遗留目录

ls /etc/my.cnf
ll /var/lib/mysql/
rm –rf /etc/my.cnf
rm –rf /var/lib/mysql/


3、 重新安装

yum install mariadb mariadb-server –y
system start mariadb
system enable mariadb
mysql_secure_installation
mysql –u root –p