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Radarr in Docker on a Synology NAS

Added Docker Compose details
Added new folder mappings to ensure atomic moves and Hard-linking
Guide re-written and updated with DSM7 screenshots01/08/2021
Updated screenshots and steps for DSM7.1 03/06/2022

What is Radarr?

Radarr is used to search, download and organise your Movies in conjunction with your preferred Usenet or Torrent downloaders and indexers.

Let’s Begin

In this guide I will take you through the steps to get Radarr up and running in Docker.

In order for you to successfully use this guide please complete the two preceding guides

Downloading the Radarr Image

Open up Docker within DSM and navigate to the ‘Registry’ tab and search for ‘Radarr’. In the list of available containers select the one made by Linuxserver as shown below then click ‘Download’.

The pop-up box will ask which version you want to download, make sure you choose ‘Latest’ from the list of available versions.

You can check the status of the download over on the ‘Image’ tab.

Setting up the container

In Docker click on the ‘Image’ tab, in the list of your containers select the ‘Linuxserver Radarr’ image and click on ‘Launch’

The first screen will ask how you want to set up the Docker network, to keep things simple we will be using the Docker Host option which means we will not need to set up any additional ports. Click Next once you have selected the option.

General Settings

Next you will be greeted with the General Settings screen, this is where you can start specifying some of your preferences.

You can change the name of the container to anything you like, and you may want to enable Auto Restart as this will ensure Radarr starts automatically if you reboot your NAS.

You will also notice a Configure capabilities button — don’t change anything in here!

Next up we are going to click on the ‘Advanced Settings’ button, this will take you to a new window with a number of tabs which we are going to work through.

Environment (PGID,  PUID and Timezone)

Next we are going to set up a couple of environment variables that docker will use to allow the container access to our files and folders and also to tell it where we live in the world.

Click the Add button, and fill in the following details as per the table/screenshot, you will need to do one at a time.

PUIDThe UID you obtained in the user setup guide
PGIDThe GID you obtained in the user setup guide
TZYour timezone

Links / Execution Command

You do not need to set up anything on these tabs.

Press ‘Save’ to go back to the initial setup screen, then press ‘Next’

Volume Settings

We will now be specifying the directories where Radarr will store its configuration files and where to find our media and downloads.

Click on ‘Add Folder’ select the ‘docker’ folder and create a new sub-folder called ‘radarr’ select this folder and click ‘select’

Repeat this process to add the /data folder.

You will now add the below settings into the ‘Mount path’ section

File/FolderMount path

Click Next to move to the final screen.


You have now completed the setup of the container.

You will be shown an overall summary of the settings we have specified, this is a good time to double-check everything is correct. Finally, click on Done and the container should start to boot.

You should now be able to access Radarr via the IP of your NAS followed by the port 7878


Make sure you check out page 2 of this guide that covers some common basic settings.

Docker Compose

You can use the below code saved as radarr.yml in the ‘/docker/radarr’ share, this will do the entire process above in one quick command via SSH. Ensure you change the variables to your own.

version: "3.8"
    image: linuxserver/radarr:latest
    container_name: radarr
      - TZ=Your/Timezone
      - /volume1/data:/data
      - /volume1/docker/radarr:/config
    network_mode: host
    restart: unless-stopped
sudo docker-compose -f /volume1/docker/radarr/radarr.yml up -d

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Published inDockerSynology


  1. Rob Rob

    Would there be an issue with specifying the Data folder as /Radarr/Data instead of the top level /Data folder. I’ve noticed in the Sonarr guide that Sonarr is using the same Data folder therefore all data from containers would be in the same folder. Is this the preferred method please or would it be better to split it up?

    • Dr_Frankenstein Dr_Frankenstein

      Would you then also have /sonarr/data?

      It’s going to get confusing, where would your downloads be located. You would also then have to have multiple mount points which means you would get no Atomic file moves everything would copy and delete.

  2. Great guide. There is a path error in your docker-compose line. Should be


    • Dr_Frankenstein Dr_Frankenstein

      Good spot! Fixed 🙂

  3. Hey, thanks for the tutorial that was easy to reproduce. However when i access to the radarr app I have this error message
    “You are using docker; download client Sabnzdb places downloads in /config/Downloads/complete but this directory does not appear to exist inside the container. Review your remote path mappings and container volume settings.”

    Any clu ?

      • hey many thanks for the reply.

        I noticed after that i missed to update the folder path in Sabnzdb so I changed it according to your great tutorial but still i´m not able to download because Radarr requests me to add a path and i cannot do it.

        I go to settings/mediamanagement and try to add a root path but when I click on OK the path is not displayed. Even if i´m not sure about which one to enter.

        In settings/downloadclients is any mapping to udpate also ?

        Many thanks in advance

  4. Rajiv Rajiv


    Fabulous writeups Dr_Frankenstein! Really helped get an idea of how to get this installed and setup. I was just wondering if you or the others are getting error messages in Radarr that says. “Download client NZBGet places downloads in the root folder /path/blah/blah. You should not download to a root folder.” I am getting this error in Sonarr as well

    Thank you

  5. Matt Matt

    Thank you for the great guides!
    Coinbase is saying that address isn’t valid for sending btc?

    • Matthew Matthew

      sorry I figured it out – needed to click on bitcoin cash. it worked! thanks again.

      • Dr_Frankenstein Dr_Frankenstein

        Nice one thanks for the tip!

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