Package: mariadb-client-10.1 Version: 1:10.1.29-6 User: [email protected] Usertags: origin-ubuntu bionic
Steps to reproduce: apt install mariadb-client-10.1 apt install mysql-server-5.7 The second command will cause mariadb-client-10.1 because of a conflict with mysql-client-5.7, which is depended on by mysql-server-5.7 and is expected. However, then we have: # update-alternatives --display my.cnf my.cnf - auto mode link best version is /etc/mysql/mariadb.cnf link currently points to /etc/mysql/mariadb.cnf link my.cnf is /etc/mysql/my.cnf /etc/mysql/mariadb.cnf - priority 200 /etc/mysql/my.cnf.fallback - priority 100 /etc/mysql/mysql.cnf - priority 200 This is incorrect. Our /etc/mysql/my.cnf management system expects that only one variant package will claim the file at one time. In this case we have MariaDB claiming /etc/mysql/my.cnf -> /etc/mysql/mariadb.cnf even though MySQL's mysql-server-5.7 is installed and supposedly active. This happens because the code to claim /etc/mysql/my.cnf is in mariadb-common, which is depended on my mariadb-client-10.1. I had intended the claim to be made from mariadb-server-10.1 (and other variants' counterparts) only.
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