How to fix Plex migration issues in Synology DSM 7.0
(Android Central)

The DSM 7.0 update comes with a lot of exciting changes, including new features and better security. One of the security-focused changes is how the system handles root privileges; Synology now prohibits services like Plex Media Server and other packages from gaining root privileges, and has restrictions on file system access. While this is a welcome move, the security changes have led to issues with Plex installations. As a result, when you switch from DSM 6.2 to DSM 7.0, you will see a message to repair your Plex installation and migrate the data. Doing so is pretty straightforward, and you`ll need to manually assign permissions so that Plex can see your media library and run in the background. Using Plex as a centralized media server is one of the best use cases for the NAS; I`ve outlined the best NAS for Plex to make the most out of streaming your media library to your connected devices. If you`ve made the switch to DSM 7.0 and are encountering issues with your Plex installation...