hi, doing a clean install of kolab 3.3 clean install of centos 7 lamp install with mariadb and /usr/bin/mysql_secure_installation yum install kolab resulted in Error: Package: kolab-3.1.8-4.2.el7.kolab_3.3.noarch (Kolab_3.3) Requires: mysql-server You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest tia r