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Added information about permissions errors (migrating to alpine) (#2289)

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* Added information about permissions errors when migrating docker images to alpine.

* Updated README.md documentation after review.
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Alexandra Branco 2024-10-07 18:27:24 +01:00 • committed by GitHub
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@ -620,6 +620,16 @@ You're already using Nextcloud and want to switch to docker? Great! Here are som
docker compose exec app chown -R www-data:www-data /var/www/html/custom_apps
```
## Migrating from a non-Alpine image to an Alpine image
If you already use one of our non-Alpine images, but want to switch to an Alpine-based image, you may experience permissions problems with your existing volumes. This is because the Alpine images uses a different user ID for `www-data`.
So, you must change the ownership of the `/var/www/html` (or `$NEXTCLOUD_DATA_DIR`) folder to be compatible with Alpine:
```console
docker exec container-name chown -R www-data:root /var/www/html
```
After changing the permissions, restart the container and the permission errors should disappear.
# Help (Questions / Issues)
**If you have any questions or problems while using the image, please ask for assistance on the Help Forum first (https://help.nextcloud.com)**.