Config is set to be read-only via option "config_is_read_only"

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1

Sorry if this is a stupid question, could not find an answer so far

Probably after a watchtower action web access is no more with the message:
Config is set to be read-only via option “config_is_read_only”.
Unset “config_is_read_only” to allow changes to the config file.

and occ:

Nextcloud or one of the apps require upgrade - only a limited number of commands are available
You may use your browser or the occ upgrade command to do the upgrade
Setting log level to debug
In Config.php line 298:
[OCP\HintException]
Config is set to be read-only via option “config_is_read_only”.

What is next to do?

2

Replying to myself. After a tedious backup i just edited (in my case) (because the logfile was on debug level and 330 Gb ) :cold_face:
/var/lib/docker_volumes/compose/_vol-nextcloud-content/_data/config/config.php
‘config_is_read_only’ => true, to false
After that the on the webinterface the update to 24 started, and everything seems to work just fine.