#!/bin/sh post_install() { cat <<-EOM :: You need to initialize the MariaDB data directory prior to starting the service. This can be done with mariadb-install-db command, e.g.: # mariadb-install-db --user=mysql --basedir=/usr --datadir=/var/lib/mysql EOM } post_upgrade() { # show for feature release: 10.1 -> 10.2 -> 10.3 -> ... if [ $(vercmp "${1%.*-*}" "${2%.*-*}") -ne 0 ]; then cat <<-EOM :: MariaDB was updated to a new feature release. To update the data run: # systemctl restart mariadb.service && mariadb-upgrade -u root -p EOM fi }