Migrating from ownCloud — Nextcloud latest Administration Manual latest documentation

# Migrating from ownCloud

Note

Especially when migrating from ownCloud to Nextcloud you should create a backup of the config, database and the data directory, in case something goes wrong.

Currently migrating from ownCloud is like performing a manual update. So it is quite easy, to migrate from one ownCloud version to at least one Nextcloud version. However this does only work with versions that are sufficiently compatible in database schema and codebase. See the table below for a version map, where migrating is easily possible:

ownCloud | Nextcloud
--- | ---
10.13.x 10.14.x 10.15.x 10.16.x | 25.0.13 25.0.13 25.0.13 25.0.13

Note

Since ownCloud does not and will not support PHP 8.0 or higher, you need to migrate from ownCloud 10.13.x to Nextcloud 25 and then further upgrade from there. We urge you to migrate to Nextcloud since PHP versions prior PHP 8 are end of life, see https://www.php.net/supported-versions.php.

1. First download the correct version of Nextcloud from our older releases page,

2. Make sure to have do a backup before migrating.

3. Follow the upgrade instructions described in the Upgrade manually manual.

4. When migrating to Nextcloud 20.0 or later, you will also need to run the following commands after `occ upgrade`:

> - `occ db:convert-filecache-bigint`

> - `occ db:add-missing-columns`

> - `occ db:add-missing-indices`

> - `occ db:add-missing-primary-keys`

5. If system cron was used, please verify if crontab entry was using the command `occ system:cron`. If yes, please adjust it to use the `php` command instead according to the background jobs configuration documentation

6. As Nextcloud 25 is the last Nextcloud version supporting PHP 7 you need to upgrade your PHP installation afterwards to continue updating to current Nextcloud release. We recommend to update PHP to version 8.1 before continuing with the updates.

7. Use the Nextcloud built-in updater to update your instance to the newest version. This must be done for every major version, since updates between multiple major versions are not supported. So the update path would be: 26 → 27.1 → 28 → 29 → 30 → 31.

8. When reaching Nextcloud 30 or 31 we recommend to update PHP again to a current version like PHP 8.3. You can do so also in between, as PHP 8.2 is already supported since Nextcloud 26 and PHP 8.3 since Nextcloud 28, but in most cases it is easier to first complete the Nextcloud version updates.

9. Make sure to also verify the “Security & setup warnings” in the “Overview” section on the settings page.

10. In some cases, apps installed from the ownCloud Market might have been disabled as incompatible (ex: calendar and contacts), so you should reinstall the Nextcloud ones using `occ app:enable calendar`, `occ app:enable contacts`, etc

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