Cannot downgrade supervisor after unexpected auto-update on 32-bit system

Coming back after being away for a few days, I was unable to control the blinds. Turns out my deliberately old setup had auto-updated to a version > 2022.03.8 (where the old z-wave integration was not yet deprecated).

First thing I tried was restoring a backup (which I have most probably done in the past, too, as I vaguely remember having to deal with auto-updates already). This failed with the following error:

ERROR (MainThread) [supervisor.backups.manager] Restore 48e8d354 error
[...]
supervisor.exceptions.HomeAssistantJobError: 'HomeAssistantCore.update' blocked from execution, supervisor needs to be updated first

However, updating the supervisor first was not possible either because it’s a 32-bit system:

Failed to perform the action update/install. Error updating Home Assistant Supervisor: Update of Supervisor failed: Can't install ghcr.io/home-assistant/armv7-hassio-supervisor:2026.07.3: 500 Server Error for http+docker://localhost/v1.47/images/create?tag=2026.07.3&fromImage=ghcr.io%2Fhome-assistant%2Farmv7-hassio-supervisor&platform=linux%2Farm%2Fv7: Internal Server Error ("manifest unknown")

When attempting to downgrade to a specific version, it seemed to attempt to install the latest version instead, too:

$ ha supervisor update --version 2022.03.5
Error: Update of Supervisor failed: Can't install ghcr.io/home-assistant/armv7-hassio-supervisor:2026.07.3: 500 Server Error for http+docker://localhost/v1.47/images/create?tag=2026.07.3&fromImage=ghcr.io%2Fhome-assistant%2Farmv7-hassio-supervisor&platform=linux%2Farm%2Fv7: Internal Server Error ("manifest unknown")

Is there any chance to get back to an old version?

I can totally understand that running a 4-year old version on a deprecated system is not something very reasonable, but I ended up here when the z-wave migration failed and I did not find time to reset and reconnect every motor.

Thanks a lot for any pointer you might have!

Settings > About
  • Installation methodHome Assistant OS
  • Core2025.11.3
  • Supervisor2025.09.3
  • Operating System13.2
  • Frontend20251105.1
docker ps
CONTAINER ID   IMAGE                                                         COMMAND               CREATED          STATUS                 PORTS                                     NAMES
[..]           ghcr.io/home-assistant/raspberrypi4-homeassistant:2025.11.3   "/init"               52 minutes ago   Up 52 minutes                                                    homeassistant
[..]           homeassistant/armv7-addon-configurator:5.8.0                  "/init"               3 hours ago      Up 3 hours (healthy)                                             addon_core_configurator
[..]           homeassistant/armv7-addon-ssh:9.17.0                          "/init"               3 hours ago      Up 3 hours             0.0.0.0:22->22/tcp, :::22->22/tcp         addon_core_ssh
[..]           ghcr.io/home-assistant/armv7-hassio-multicast:2025.08.0       "/init"               3 hours ago      Up 3 hours                                                       hassio_multicast
[..]           ghcr.io/home-assistant/armv7-hassio-audio:2025.08.0           "/init"               3 hours ago      Up 3 hours                                                       hassio_audio
[..]           ghcr.io/home-assistant/armv7-hassio-dns:2025.08.0             "/init"               3 hours ago      Up 3 hours                                                       hassio_dns
[..]           ghcr.io/home-assistant/armv7-hassio-cli:2025.09.0             "/init"               3 hours ago      Up 3 hours                                                       hassio_cli
[..]           ghcr.io/home-assistant/armv7-hassio-supervisor:latest         "/init"               10 months ago    Up 3 hours                                                       hassio_supervisor
[..]           ghcr.io/home-assistant/armv7-hassio-observer:2025.02.0        "/usr/bin/observer"   16 months ago    Up 3 hours             0.0.0.0:4357->80/tcp, [::]:4357->80/tcp   hassio_observer

Never mind, I started from scratch.