To be completed by the original poster:
CMS Version
4.0.0
Installation Method
Docker
Operating System
Linux SGH-NAS 3.10.108 #64570 x86_64 GNU/Linux synology_braswell_916+
DSM 7.2-64570 Update 1
Issue
When installing this docker (upgrade from 3.3.6), it throws a
Function not implemented: AH00141: Could not initialize random number generator
error. According to various sources, this is due to an lower kernel-version. Unfortunately, we use Docker on a Synology NAS, wherefore updating the kernel is not possible.
Could there be a image/version which is suitable for kernel-versions of 3.10?
Linux SGH-NAS 3.10.108 #64570 SMP Fri Jun 2 23:36:41 CST 2023 x86_64 GNU/Linux synology_braswell_916+
Synology DS916+
DSM 7.2-64570 Update 1
NextCloud faces the same problem, they used php:8.0-apache-buster to counter the issue.
nextcloud/docker#1574