With a fresh install of the dietpi image just downloaded (DietPi_v6.14_NanoPiNEO2-ARMv8-Stretch) on a NanoPi NEO 2, I used the dietpi-launcher to install owncloud. Access to the server fails (error 503) because of php7.2-fpm, service fails to start. systemd status log says:
Nov 06 08:24:24 DietPi systemd[1]: Starting The PHP 7.2 FastCGI Process Manager...
│ Nov 06 08:24:24 DietPi php-fpm7.2[4017]: Wed Nov 6 08:24:24 2019 (4017): Fatal Error Zend OPcache cannot allocate
│ buffer for interned strings
An old bugreport about Nexcloud and a similar problem says
The command that fails is: php -r ‘print(PHP_INT_MAX);’
erpl
For reference: https://github.com/MichaIng/DietPi/issues/2293
I always forget to test this thoroughly, however since with v6.27 we install PHP7.3 as well for ownCloud (version 10.3 has been released which finally supports it), could you please test the following:
Uninstall ownCloud, PHP and Lighttpd (or the webserver you chose) via dietpi-software.