Cannot create Admin User after Nextcloud installation


I keep struggling with installing the Nextcloud App. The installation itself works without problems. After opening Nextcloud I get to the page, where I have to provide the database and admin information. At this point seems to be a problem with the connection to the database:
Here are the DB Infos, that I entered:
These are the infos I gathered:

The postgres is up and enabled:

Administrator@UCS-Server:/var/log/univention$ systemctl status postgresql
● postgresql.service - PostgreSQL RDBMS
   Loaded: loaded (/lib/systemd/system/postgresql.service; enabled; vendor preset: enabled)
   Active: active (exited) since Tue 2020-05-05 21:22:15 CEST; 2 days ago
 Main PID: 704 (code=exited, status=0/SUCCESS)
    Tasks: 0 (limit: 4915)
   Memory: 0B
      CPU: 0
   CGroup: /system.slice/postgresql.service

Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.

Entry of the

# univention-postgresql-9.6[en]: postgresql
iptables --wait -A INPUT -p "tcp"  --dport 5432 -j ACCEPT
ip6tables --wait -A INPUT -p "tcp"  --dport 5432 -j ACCEPT

There is a Problem with executing the join scripts, but I think this error results in the fact, that I tried to install Nextcloud a couple of times. This comes from the join.log

RUNNING 50nextcloud.inst
2020-05-08 01:44:38.395215148+02:00 (in joinscript_init)
Object exists: cn=services,cn=univention,dc=kohlmanngmbh,dc=intranet
Object exists: cn=Nextcloud Hub,cn=services,cn=univention,dc=kohlmanngmbh,dc=intranet
WARNING: cannot append Nextcloud Hub to service, value exists
No modification: cn=UCS-Server,cn=dc,cn=computers,dc=kohlmanngmbh,dc=intranet
Not updating nextcloud/ucs/modifyUsersFilter
Not updating nextcloud/ucs/userEnabled
Not updating nextcloud/ucs/userQuota
Not updating nextcloud/ucs/debug
Not updating nextcloud/ldap/cacheTTL
Not updating nextcloud/ldap/homeFolderAttribute
Not updating nextcloud/ldap/userSearchAttributes
Not updating nextcloud/ldap/userDisplayName
Not updating nextcloud/ldap/groupDisplayName
Not updating nextcloud/ldap/base
Not updating nextcloud/ldap/baseUsers
Not updating nextcloud/ldap/baseGroups
Not updating nextcloud/ldap/filterLogin
Not updating nextcloud/ldap/filterUsers
Not updating nextcloud/ldap/filterGroups
Nextcloud is not installed - only a limited number of commands are available

  There are no commands defined in the "config:app" namespace.
Nextcloud is not installed - only a limited number of commands are available

  There are no commands defined in the "config:app" namespace.

Could not create LDAP Config at Nextcloud
univention-join-hooks: looking for hook type "join/post-joinscripts" on UCS-Server.kohlmanngmbh.intranet
Found hooks:

Fr 8. Mai 01:45:15 CEST 2020
univention-run-join-scripts finished

Has somebody a clue what might go wrong? I read a lot about comparable, but not equal problems in the forum, but have not been succesful.

BTW: I am not sure, why I am reaching this Nextcloud configuration page anyway. I had a look at different tutorials, in which Nextcloud was usable directly after the installation in the univention app center (e.g. here: Have I missed something before?

I am having a related problem. I have had nextcloud up and running successfully for months. It appears that the 18.0.4 update has broken access to the postgresql database.

Now, when I try to reach the nextcloud server via the webpage: https://myserver/nextcloud, I get to the nextcloud installation page.

I need some guidance on getting the database with all of my existing data back up and running!

Thank you!


Hey John,

Thank a lot for your hint. For me, it indeed looks like the same problem.
I have to admit, that I was lazy and switched to Owncloud, because I was just setting up the server and had no expenditure through existing files.

Maybe you should generate a new topic with a more specific name, than my one, to generate more attention.

Best Regards

Do you still have the appcenter.log from that attempt? It seemed the install procedure didn’t go through correctly.