Problem mirgrating OwnCloud to Nextcloud

I think I have distroyed my Cloud while Upgrading it to Nextcloud.

I had run OwnCloud (I think Version 9 or so) on my Server without Problems. Now there was an Notice that I have to Upgrade to 9.1 (or so) an I decidet to upgrade to Nextcloud.

So I backed up my DB, the data and config folders. Then I deleted the Owncloud Folder an extracted the newest Nextcloud Version in the Folder. Then I copied back the data and config folder, changed to the CLI and write

sudo -u www-data php occ upgrade

But it outputs the following:

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
Set log level to debug
Exception: Updates between multiple major versions and downgrades are unsupported.
Update failed
Maintenance mode is kept active
Reset log level

Momently I think I should had upgrade to the newest OwnCloud Version and then change to nextcloud. But I read in a many Blogposts that NextCloud is compatible with Owncloud and I can just copy it over. So I had tried it.

Sorry becouse my bad english. I hope you can understand what I mean.

And thanks for all replys.

That might explain why you are unable to upgrade.


does it mean that I have to delete the files from the server again, download, upgrade it and then delete the data egain to update to ???

That might mean that an app needs to be disabled before the update can start

How can I disable an App without the webinterface?

thanks. The command looks easy.

this apps are enabled:


  • activity: 2.2.1
  • comments: 0.2
  • dav: 0.1.6
  • external: 1.2
  • federatedfilesharing: 0.1.0
  • federation: 0.0.4
  • files: 1.4.4
  • files_pdfviewer: 0.8.1
  • files_sharing: 0.9.1
  • files_texteditor: 2.1
  • files_trashbin: 0.8.0
  • files_versions: 1.2.0
  • files_videoplayer: 0.9.8
  • firstrunwizard: 1.1
  • lookup_server_connector: true
  • notifications: 0.2.3
  • provisioning_api: 0.4.1
  • systemtags: 0.2
  • templateeditor: 0.1
  • twofactor_backupcodes: true
  • updatenotification: 0.1.0
  • workflowengine: true

Should I disable all Apps or how can I find out which of them makes the problem?

This wath in my case the solution. It works again.

Thanks for the help.