Synology: DSM 7 Installation Archive -- Archived from main thread

This is the cause of the failure.

The changes (Permission changes because username changed) cannot be handled automatically by package center.

At this point.

  1. Uninstall the DSM 7 package and use the ERASE option (makes “PlexMediaServer” empty)

  2. You will want to install 1.29.2 from Package Center.

  3. Using this FAQ, scroll down to scenario 2.

  • You will want to confirm FULL CONTROL of This folder, sub-folders and files belong to PlexMediaServer for everything in the “Plex” shared folder.
  • As soon as you accomplish this, The DSM 7 package installer will automatically do the rest for you. DO NOT INTERRUPT IT.
    – File: Plex/Migration.log will allow you to track progress of the upgrade migration
    – “Cleaning Completed” means it’s done.