Problem
Nextcloud cannot be used, because you get the message update needed
Check the previous version on your system with
univention-app info
UCS: 5.0-3 errata622
Installed: mailserver=12.0 office365=5.5 openproject=12.5.1 oxseforucs=7.10.6-ucs3 radius=5.0 relution=5.15.1 samba4=4.16 self-service-backend=5.0 4.4/nextcloud=24.0.7-1 4.4/rocketchat=3.18.2
Upgradable:
For an app update from nextcloud, if you need that use the following commands to update the list of apps
univention-app update
now you can sue
univention-app upgrade nextcloud
Nextcloud is on the latest version, but you get still the screen that update needed
Solution
For Nextcloud there are 2 config.php files, in which version numbers for the app are entered, these should be checked.
/var/lib/univention-appcenter/apps/nextcloud/data/integration/config/config.php
the next one is in the docker container from nextcloud
univention-app shell nextcloud
apt-get install nano
nano /var/www/html/config/config.php
After you check or edit the version in the config.php files with the real installed version, you have to do the following steps
If you want to run the nextcloud occ command from the UCS shell directly you can do it like this:
univention-app shell nextcloud sudo -u www-data /var/www/html/occ
That command is used to manage things in the shell and can be used even when nextcloud is in other than the normal operating mode. So for instance to turn off maintenance mode
univention-app shell nextcloud sudo -u www-data /var/www/html/occ maintenance:mode --off
Then to disable onlyoffice
univention-app shell nextcloud sudo -u www-data /var/www/html/occ app:disable onlyoffice
and remove onlyoffice
univention-app shell nextcloud sudo -u www-data /var/www/html/occ app:remove onlyoffice
repair installation
univention-app shell nextcloud sudo -u www-data /var/www/html/occ maintenance:repair
upgrade
univention-app shell nextcloud sudo -u www-data /var/www/html/occ upgrade
If some combination of those commands manages to get you to a successful update of the UCS app then you might want to finish up with this
univention-app shell nextcloud sudo -u www-data /var/www/html/occ db:add-missing-indices