Hi, I have installed yunohost on raspberry pi 4B and continued with this tutorial https://yunohost.org/en/install/hardware:rpi2plus After diagnosis I have find out that my mysql is not working. I think this is proplem : [Warning] Could not increase number of max_open_files to more than 16384 (request: 32186) but I don’t know what to do. Please help me. Here is full log maybe it helps : journalctl – Logs begin at Sun 2021-02-21 06:17:01 GMT, end at Sun 2021-02-21 06:36:23 GMT. – Feb 21 06:17:35 systemd[1]: Starting MariaDB 10.3.27 database server… Feb 21 06:17:37 mysqld[803]: 2021-02-21 6:17:37 0 [Note] /usr/sbin/mysqld (mysqld 10.3.27-MariaDB-0+deb10u1) starting as process 803 … Feb 21 06:17:37 mysqld[803]: 2021-02-21 6:17:37 0 [Warning] Could not increase number of max_open_files to more than 16384 (request: 32186) Feb 21 06:17:38 systemd[1]: mariadb.service: Main process exited, code=exited, status=1/FAILURE Feb 21 06:17:38 systemd[1]: mariadb.service: Failed with result ‘exit-code’. Feb 21 06:17:38 systemd[1]: Failed to start MariaDB 10.3.27 database server. Feb 21 06:22:54 systemd[1]: Starting MariaDB 10.3.27 database server… Feb 21 06:22:54 mysqld[1293]: 2021-02-21 6:22:54 0 [Note] /usr/sbin/mysqld (mysqld 10.3.27-MariaDB-0+deb10u1) starting as process 1293 … Feb 21 06:22:54 mysqld[1293]: 2021-02-21 6:22:54 0 [Warning] Could not increase number of max_open_files to more than 16384 (request: 32186) Feb 21 06:22:55 systemd[1]: mariadb.service: Main process exited, code=exited, status=1/FAILURE Feb 21 06:22:55 systemd[1]: mariadb.service: Failed with result ‘exit-code’. Feb 21 06:22:55 systemd[1]: Failed to start MariaDB 10.3.27 database server.