So Rai has /usr/sbin/mysqld-akonadi from package akonadi-backend-mysql: /usr/sbin/mysqld-akonadi --defaults-file=/home/rai/.local/share/akonadi/mysql.conf --datadir=/home/rai/.local/share/akonadi/db_data/ --socket=/tmp/akonadi-rai.bxYrSB/mysql.socket --pid-file=/tmp/akonadi-rai.bxYrSB/mysql.pid
Rai was running Debian buster (=oldstable). Steven has another version (Bullseye/stable?) with: /usr/sbin/mysqld --defaults-file=/home/username/.local/share/akonadi/mysql.conf --datadir=/home/username/.local/share/akonadi/db_data/ --socket=/run/user/1000/akonadi/mysql.socket --pid-file=/run/user/1000/akonadi/mysql.pid The process detection indeed would be more robust if it checked for owner 'mysql'. So we could switch it to run this instead? pgrep -u root,mysql -x --nslist pid --ns $$ "mysqld|mariadbd" Just need to be careful that this is run only on systems where the user 'mysql' already exist, otherwise pgrep will return an error. The issue https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1031770 Rai mentioned is unrelated. Let's not mix the discussion about that into this one about the preinstall script process check.
