Effectivement, cela installe MariaDB-Server, mais malgré cela, impossible de lancer l’instance :
mariadb.service - MariaDB 10.3.23 database server
Loaded: loaded (/lib/systemd/system/mariadb.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Sun 2020-09-06 13:33:20 UTC; 1 day 1h ago
Docs: man:mysqld(8)
https://mariadb.com/kb/en/library/systemd/
Process: 118 ExecStartPre=/usr/bin/install -m 755 -o mysql -g root -d /var/run/mysqld (code=exited, status=226/NAMESPACE)
sept. 06 13:33:20 ReverseProxy systemd[1]: Starting MariaDB 10.3.23 database server...
sept. 06 13:33:20 ReverseProxy systemd[118]: mariadb.service: Failed to set up mount namespacing: Permission denied
sept. 06 13:33:20 ReverseProxy systemd[118]: mariadb.service: Failed at step NAMESPACE spawning /usr/bin/install: Permission denied
sept. 06 13:33:20 ReverseProxy systemd[1]: mariadb.service: Control process exited, code=exited, status=226/NAMESPACE
sept. 06 13:33:20 ReverseProxy systemd[1]: mariadb.service: Failed with result 'exit-code'.
sept. 06 13:33:20 ReverseProxy systemd[1]: Failed to start MariaDB 10.3.23 database server.