c19b0bf9de
This error occurs if `nextcloud-occ maintenance:install` fails and the `upgrade` command is attempted to be executed afterwards. Due to the nature of the installer we can't do much about it, so I guess it makes sense to add some notes about it. The other notes in the `Pitfalls`-section are semantically a list of different topics, so I changed that accordingly now. Closes #111175 (cherry picked from commit 561418f996fc015f4db48b1c9b7c31338cb280d9)
*** NixOS *** NixOS is a Linux distribution based on the purely functional package management system Nix. More information can be found at https://nixos.org/nixos and in the manual in doc/manual.