[SOLVED] downgrade MariaDB 10.4 to MariaDB 10.1 on centos7

downgrade MariaDB 10.4 to MariaDB 10.1 on centos7

i have this error msg

Transaction check error: file /usr/bin/garbd from install of galera-25.3.26-1.rhel7.el7.centos.x86_64 conflicts with file from package galera-4-26.4.2-1.rhel7.el7.centos.x86_64 Error Summary

so how to uninstall galera-25.3.26-1.rhel7.el7.centos.x86_64

my system centos7

1- i create file /etc/yum.repos.d/mariadb.repo

[mariadb]
name = MariaDB
baseurl = http://yum.mariadb.org/10.1/centos7-amd64
gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
gpgcheck=1
enabled=1

2- service mysql stop yum remove MariaDB-server MariaDB-client

3- yum clean all yum install MariaDB-server MariaDB-client net-snmp perl-DBD-MySQL -y yum update -y

Transaction check error: file /usr/bin/garbd from install of galera-25.3.26-1.rhel7.el7.centos.x86_64 conflicts with file from package galera-4-26.4.2-1.rhel7.el7.centos.x86_64

Error Summary

so how to uninstall galera-25.3.26-1.rhel7.el7.centos.x86_64

my system centos7

Solution

In your terminal while running with a privileged user like root,I uninstalled galera with

yum remove galera*

If your MariaDB install needs galera it will install the galera version required by your MariaDB installation.

That's how I did it on my CentOS 7.