query and list the rpm packages on MariaDBrpm -qa | grep "MariaDB"
Go to the location of Repositories and check for the MariaDB repocd /etc/yum.repos.d/
Disable mariaDB if repo is present or else skip 2 and 3 steps.yum-config-manager --disable
MariaDB
Remove the MariaDB rpm packagesyum remove "MariaDB*" -y
Remove forcefully the configuration of MariaDBrm -rf /etc/my.cnf
Remove Data Directoryrm -rf /var/lib/mysql
search for the mysql user in the /etc/passwd location.grep mysql /etc/passwd
Delete the user mysql using the below command.userdel -r mysql
Check whether could you login to the MariaDB.If it says like no such file or directory ,its Ok.mysql -u root -p
check the status of MariaDB ,If it throws no command is found ,then we have successfully removed MariaDB completely On CentOS 7.6systemctl status mariadb
Thus the procedure comes to end.