The code should be owned by the FTP User and Group, but then have permissions set wide enough to allow the webserver to read the files. Typically this is 644 for files and 755 for directories. More information: http://codex.wordpress.org/Changing_File_Permissions#Permission_Scheme_for_WordPress
Making a custom upload form and page in the admin section
This turned out to be a setting error on my part. In Network Admin > Sites > Settings for blog /, I had not updated the File uploads URL field. One little variable ….
I actually figured it out, I had the user assigned to the wrong role, so upload_files works. FYI the error was verbatum HTTP ERROR. If the error would have been permission denied I would have figured it out sooner.
Missing Images in Uploads Directory (Server Only)
Upload more than one media files with a post
I’d suggest you check the $featuredimg URL. If there is already an attachment with this URL just get the ID and call update_post_meta( $pid, ‘_thumbnail_id’, $thumb_id ); There’s a useful function to get the ID for an existing URL: Philip Newcomer function pn_get_attachment_id_from_url( $attachment_url=”” ) { global $wpdb; $attachment_id = false; // If there is … Read more
You should be able to do a straight copy of the wp-content/uploads/ folder. You may have to do a find/replace on the original export file to change file URLs if they were absolute file paths.
WordPress will suddenly stop saving files uploaded by my code (ran in nopriv ajax)
using media_handle_sideload() to add mp4 files to Media Library