Configure owncloud to load from an existing S3 bucket

Hello, I’m wondering if owncloud supports loading from an existing S3 bucket, or does it have to create a new bucket? I tried to mount an existing bucket and got failures below.

Steps to reproduce

  1. Installed Marketplace
  2. Went to settings / storage and put in the credentials and an existing bucket name for S3

Expected behaviour

The S3 bucket should be loaded directly.

Actual behaviour

Loading the external S3 bucket failed, with logs saying
{\"Exception\":\"Exception\",\"Message\":\"Creation of bucket failed. Error executing \\\"CreateBucket\\\"

Server configuration

Operating system: ubuntu 20.04

Web server:

Database: mariadb:10.5

PHP version:

ownCloud version: owncloud version 10.8

Where did you install ownCloud from: Docker compose from https://raw.githubusercontent.com/owncloud/docs/master/modules/admin_manual/examples/installation/docker/docker-compose.yml

Are you using external storage, if yes which one: Trying to but not working

Are you using encryption: no

Are you using an external user-backend, if yes which one: no

Client configuration

Browser: Chrome

Operating system: Mac OS Big Sur