# I can't upload files after updating to 0.6.1 ## Issue - Can no longer upload files after upgrading my PoC environment to 0.6.1. ## Environment - Ubuntu 20.04 - Element Enterprise Installer 0.6.1 ## Resolution To resolve this issue, recursively change the permissions of the directory configured in parameters.yml as `media_host_data_path`. For this example, in paramters.yml, we have: ``` media_host_data_path: "/mnt/data" ``` and a quick `ls` on this path shows the `991` ownership: ``` $ ls -l /mnt/ total 4 drwxr-xr-x 3 991 991 4096 Apr 27 13:20 data ``` To fix this, run: ``` sudo chown 10991:991 -R /mnt/data ``` afterwards, `ls` should show the `10991` ownership: ``` $ ls -l /mnt/ total 4 drwxr-xr-x 3 10991 991 4096 Apr 27 13:20 data ``` and now you should be able to upload files again. ## Root Cause In this case, the installation started with 0.5.3 and in 0.6.0, we changed the UIDs that synapse runs as in order to avoid conflicting with any potential system UID. Previously, the UID was 991, but we moved to 10991. As such, this breaks permissions on the existing synapse_media directory. You may see an error similar to this one in your synapse logs, which can be obtained by running `kubectl logs -n element-onprem instance-synapse-main-0`: ``` 2022-04-27 13:28:02,521 - synapse.http.server - 100 - ERROR - POST-59388 - Failed handle request via 'UploadResource': Traceback (most recent call last): File "/usr/local/lib/python3.9/site-packages/synapse/http/server.py", line 269, in _async_render_wrapper callback_return = await self._async_render(request) File "/usr/local/lib/python3.9/site-packages/synapse/http/server.py", line 297, in _async_render callback_return = await raw_callback_return File "/usr/local/lib/python3.9/site-packages/synapse/rest/media/v1/upload_resource.py", line 96, in _async_render_POST content_uri = await self.media_repo.create_content( File "/usr/local/lib/python3.9/site-packages/synapse/rest/media/v1/media_repository.py", line 178, in create_content fname = await self.media_storage.store_file(content, file_info) File "/usr/local/lib/python3.9/site-packages/synapse/rest/media/v1/media_storage.py", line 92, in store_file with self.store_into_file(file_info) as (f, fname, finish_cb): File "/usr/local/lib/python3.9/contextlib.py", line 119, in __enter__ return next(self.gen) File "/usr/local/lib/python3.9/site-packages/synapse/rest/media/v1/media_storage.py", line 135, in store_into_file os.makedirs(dirname, exist_ok=True) File "/usr/local/lib/python3.9/os.py", line 215, in makedirs makedirs(head, exist_ok=exist_ok) File "/usr/local/lib/python3.9/os.py", line 225, in makedirs mkdir(name, mode) PermissionError: [Errno 13] Permission denied: '/media/media_store/local_content/PQ' ```