# Fresh installation with data carried over from prior installation fails

**URL:** <https://help.nextcloud.com/t/fresh-installation-with-data-carried-over-from-prior-installation-fails/234091>\
**Category:** ℹ️ Support\
**Tags:** nc32, app\_api\
**Created:** [October 15, 2025, 4:30pm UTC](https://help.nextcloud.com/t/fresh-installation-with-data-carried-over-from-prior-installation-fails/234091 "2025-10-15T16:30:52Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![wwe](https://help.nextcloud.com/user_avatar/help.nextcloud.com/wwe/32/72963_2.png) [@wwe](https://help.nextcloud.com/u/wwe)\
**Post date:** [October 16, 2025, 9:35am UTC](https://help.nextcloud.com/t/fresh-installation-with-data-carried-over-from-prior-installation-fails/234091/2 "2025-10-16T09:35:26Z")

</div>

> [@ccurley](#):
>
> I had a working installation under Debian 12 (bookworm). I saved the installation and data, and installed new Debian 13 (trixie). I set up Apache and PHP following the old installation as much as possible. I copied in the data and config.php file from the old installation.

If you still have the old installation I would recommend to perform the migration in proper way as described in [Migrating to a different server — Nextcloud latest Administration Manual latest documentation](https://docs.nextcloud.com/server/latest/admin_manual/maintenance/migrating.html)

see [101: backup what and why (not how)](https://help.nextcloud.com/t/101-backup-what-and-why-not-how/217496) to learn which data is important.

> [@ccurley](#):
>
> I conjecture that some PHP module or other is missing. Which one? I have done:

please review [Preparing PHP — Nextcloud latest Administration Manual latest documentation](https://docs.nextcloud.com/server/latest/admin_manual/installation/php_configuration.html#required-php-modules)

---

_[View the full topic](https://help.nextcloud.com/t/fresh-installation-with-data-carried-over-from-prior-installation-fails/234091)._