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Getting help
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- How to topics and FAQs
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Some or all of the below information will be requested if it isn’t supplied; for fastest response please provide as much as you can. 
The Basics
- Nextcloud Server version (e.g., 29.x.x):
- ** Nextcloud Hub 9 - (30.0.5)**
- Operating system and version (e.g., Ubuntu 24.04):
- Debian 12 Bookworm
- Web server and version (e.g, Apache 2.4.25):
replace me
- Reverse proxy and version _(e.g. nginx 1.27.2)
replace me
- PHP version (e.g, 8.3):
replace me
- Is this the first time you’ve seen this error? (Yes / No):
- Yes.
- When did this problem seem to first start?
- As soon as I tried to upload a file (no matter the size).
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
- Snap
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
- No, Nextcloud is only accessible on my local network (home).
Summary of the issue you are facing:
I have connected an external drive “Expansion” (USB 5TB) to my laptop and used the External Support to connect the drive to Nextcloud.
External storage: “Local” → Configuration: “/media/rakelbara/Expansion” → Available for: “All people”
When I try to upload a file I get two error messages:
Unknown error during upload.
Operation is blocked by access control.
There are no error log entries that I can see in Admin - Logging
The config.php looks like this:
<?php
$snap_current = getenv('SNAP_CURRENT');
$snap_data_current = getenv('SNAP_DATA_CURRENT');
$CONFIG = array(
/**
* Use the ``apps_paths`` parameter to set the location of the Apps directory,
* which should be scanned for available apps, and where user-specific apps
* should be installed from the Apps store. The ``path`` defines the absolute
* file system path to the app folder. The key ``url`` defines the HTTP web path
* to that folder, starting from the Nextcloud web root. The key ``writable``
* indicates if a web server can write files to that folder.
*/
'apps_paths' => array(
/**
* These are the default apps shipped with Nextcloud. They are read-only.
*/
array(
'path'=> $snap_current.'/htdocs/apps',
'url' => '/apps',
'writable' => false,
),
/**
* This directory is writable, meant for apps installed by the user.
*/
array(
'path'=> $snap_data_current.'/nextcloud/extra-apps',
'url' => '/extra-apps',
'writable' => true,
),
),
/**
* Database types that are supported for installation.
*
* Available:
* - sqlite (SQLite3 - Not in Enterprise Edition)
* - mysql (MySQL)
* - pgsql (PostgreSQL)
* - oci (Oracle - Enterprise Edition Only)
*/
'supportedDatabases' => array(
'mysql',
),
'memcache.locking' => '\OC\Memcache\Redis',
'memcache.local' => '\OC\Memcache\Redis',
'redis' => array(
'host' => getenv('REDIS_SOCKET'),
'port' => 0,
),
'log_type' => 'file',
'logfile' => $snap_data_current.'/logs/nextcloud.log',
'logfilemode' => 0640,
'maintenance_window_start' => 1,
);