I always run into issues installing Jellyfin on TrueNAS core. I fix them, and then I forget a few months later, so these are just my notes to myself of how to install Jellyfin on TrueNAS core.

Instructions

Install based on these instructions:

• https://github.com/Thefrank/jellyfin-server-freebsd/blob/main/Installation_TrueNAS_GUI.md#the-advanced-way

We need to follow the advanced instructions because TrueNAS plugins are deprecated.

Gotcha: Jellyfin server is not available

The first few loads after installing, an error will appear saying Jellyfin isn’t available. For some reason, waiting a few minutes fixed the issue and let me create a new account.