TerraMaster Forum

Hi all

New to Terramaster and docker but have 30 years working in IT so reasonably technical, including VM's. I am in the process of moving my plex stack from PC to NAS and want to run everything in docker containers as it is more efficient. I had limited success running containers (some yaml scripting errors) but think I've got that sorted.

F5-422; TOS 6.0.783-01200; 4x12Tb SATA & 1x500Gb SSD Cache
Docker v27.2.1 API v1.47
Docker Compose v2.25.0

I intend to build 3 projects for plex to run media (plex), manage (sonarr, radarr, sabnzbd) and monitor (watchtower, tautulli, overseerr). As mentioned, I did get some containers running but after a reboot, nothing runs. If I SSH onto the NAS and run docker version, it gives me the version but an error message of "Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?". Docker & Docker Manager are both showing as enabled but no matter what I do, I'm unable to create project / mount container due to the docker daemon.

I have AI'd as much as I can but when it was getting to the 'edit nsswitch.conf file', I shouldn't have to do that. I removed Docker & Docker Manager, rebooted and reinstalled but still the same issue. With both apps showing as enabled, if I try to create a project, it returns 'Docker Engine Not Installed or Not Running'.

Any advice / guidance would be gratefully received.

Maxip wrote: ↑26 Oct 2025, 00:26

Regarding the docker.sock connection failure and ineffective reinstallation you mentioned, this typically points to a core issue with the Docker daemon itself or its permission configuration. Before proceeding with a deeper analysis, could you kindly provide two key pieces of information that would greatly assist us in narrowing down the troubleshooting scope:

Image source: Which specific image did you use to successfully run the container previously?
SPC status: Please confirm whether you have enabled the ‘SPC’ feature within the TOS system under ‘Control Panel’ → ‘Security’.

Hi - thanks for the quick reply.

As far as I'm aware, the docker image (v27.2.1) hasn't changed in the last few days.
SPC is not enabled

Maxip wrote: ↑26 Oct 2025, 15:45

Please specify how you run your containers: through Docker Manager, via SSH command line, or using other tools?

TMtina wrote: ↑26 Oct 2025, 21:38

Maxip wrote: ↑26 Oct 2025, 15:45

Please specify how you run your containers: through Docker Manager, via SSH command line, or using other tools?

Using Docker Manager.

I have removed / rebooted and left if for an hour before re-installing Docker / Docker Manager. I then left it for another hour before adding my projects - this time, it seems to have worked so I'm wondering if it was taking much longer to initialise than I expected.

Hopefully, I won't have the same issues over the coming days / weeks.

Thanks for your help.