I recently installed mariadb-server 10.1 by adding the following repository: baseurl = http://yum.mariadb.org/10.1/centos7-amd64 ...all was well until we had a power failure and upon rebooting unixodbc was segfaulting. Once I did a yum undo, the mysql odbc driver was functional. I traced it to the following: [root at ec-ast yum.repos.d]# ldd /usr/lib64/libmyodbc5w.so | grep -iE "my|maria" libmysqlclient.so.18 => /usr/lib64/mysql/libmysqlclient.so.18 (0x00007f3dfb34c000) You have new mail in /var/spool/mail/root [root at ec-ast yum.repos.d]# repoquery -l MariaDB-server MariaDB-client MariaDB-commo MariaDB-shared galera boost-program-options jemalloc rsync lsof | grep lib64 | grep libmysqlclient /usr/lib64/libmysqlclient.so /usr/lib64/libmysqlclient.so.18 /usr/lib64/libmysqlclient.so.18.0.0 /usr/lib64/libmysqlclient_r.so /usr/lib64/libmysqlclient_r.so.18 /usr/lib64/libmysqlclient_r.so.18.0.0 ...notice the change in the path (/usr/lib64/mysql/). I could reinstall mariadb-server, add a symlink and it would probably work, but I thought it would be better to post and hopefully the maintainer of whichever package (unixodbc, maria, mysql-connector...) should be addressed, could be alerted to this issue in the event that it could (or should) be fixed on a package level. John