Thomas Hackert <thackert@nexgo.de> writes:
[....] Starting MariaDB database server: mysqld . . . . . . . . . . . . . . . . . . . . FAIL . . . . . . . failed! invoke-rc.d: initscript mysql, action "start" failed.
The problem is a failure while starting the server. You need to find the error messages in the server error log. On my system (Debian testing) it is in /var/log/daemon.log. Find the messages logged by mysqld, and if they do not provide you the answer immediately, send them to the list. Often such problems are existing /etc/mysql/my.cnf and/or old data directory that are incompatible. If you are *sure* you do not need any existing data, you can also try to purge (remove is not enough) all mysql/mariadb related packages and try install again. This will *remove* any existing database and let you try a fresh start. Else check the error messages and probably the problem can be corrected. - Kristian.