For the tutorial :
https://info.rueducoq.fr/demarrer-nextcloud-avec-windows/
For the first line you gave me I have this :
Warning: The unit file, source configuration file or drop-ins of mariadb.service changed on disk. Run ‘systemctl daemon-reload’ to reload units.
Job for mariadb.service failed because the control process exited with error code.
See “systemctl status mariadb.service” and “journalctl -xe” for details.
Then I executed as recommended : systemctl daemon-reload and I have this response
==== AUTHENTICATING FOR org.freedesktop.systemd1.reload-daemon ===
Authentication is required to reload the systemd state.
Authenticating as: root
I tried to reboot but it doesn’t solve the issue.
From the FAQ you gave me in another topic the database root password should be stored in ncadmin / <random in /root/.my.cnf>. I have to check this later today.
Thanks a lot