Supervisor fails to start HA Core

Similar to others in the past ([1](https://community.home-assistant.io/t/haos-on-laptop-suddenly-stopped-working-after-reboot-i-get-cli-not-starting/798708), [2](https://community.home-assistant.io/t/suddenly-cant-reach-ha-even-locally/697739), [3](https://community.home-assistant.io/t/new-home-assistant-green-not-working-at-all/856660)), I have recently encountered an issue where suddenly the HA Supervisor would fail to start HA Core. The logs would show the following repeated failure:
```
s6-supervise watchdog: warning: unable to spawn ./run (waiting 60 seconds): Exec format error
```

While I have successfully recovered the system from this state twice by stopping and removing the `hassio_supervisor` docker container, leading to its recreation, this seemed more like a workaround. Rebooting the system does not fix the issue.

Would it be reasonable to implement a repair mechanism for this specific error state?

## Supervisor logs

```txt
$ docker container ls
aa6b5a3c30f3 ghcr.io/home-assistant/aarch64-hassio-supervisor:latest "/init" About an hour ago Up 5 minutes hassio_supervisor
89b4195da489 ghcr.io/home-assistant/aarch64-hassio-observer:2025.02.0 "/usr/bin/observer" 7 months ago Up 5 minutes 0.0.0.0:4357->80/tcp, [::]:4357->80/tcp hassio_observer
```
```txt
$ docker logs aa6b5a3c30f3
s6-rc: info: service s6rc-oneshot-runner: starting
s6-rc: info: service s6rc-oneshot-runner successfully started
s6-rc: info: service fix-attrs: starting
s6-rc: info: service fix-attrs successfully started
s6-rc: info: service legacy-cont-init: starting
cont-init: info: running /etc/cont-init.d/udev.sh
cont-init: info: /etc/cont-init.d/udev.sh exited 0
s6-rc: info: service legacy-cont-init successfully started
s6-rc: info: service legacy-services: starting
services-up: info: copying legacy longrun supervisor (no readiness notification)
services-up: info: copying legacy longrun watchdog (no readiness notification)
s6-supervise watchdog: warning: unable to spawn ./run (waiting 60 seconds): Exec format error
s6-supervise supervisor: warning: unable to spawn ./run (waiting 60 seconds): Exec format error
s6-supervise watchdog: warning: unable to spawn ./run (waiting 60 seconds): Exec format error
s6-supervise supervisor: warning: unable to spawn ./run (waiting 60 seconds): Exec format error
s6-supervise watchdog: warning: unable to spawn ./run (waiting 60 seconds): Exec format error
s6-supervise supervisor: warning: unable to spawn ./run (waiting 60 seconds): Exec format error
...
```

## System information

version | core-2025.11.3
-- | --
installation_type | Home Assistant OS
dev | false
hassio | true
docker | true
container_arch | aarch64
user | root
virtualenv | false
python_version | 3.13.9
os_name | Linux
os_version | 6.6.74-haos-raspi
arch | aarch64
timezone | Europe/Berlin
config_dir | /config

Home Assistant Community Store

GitHub API | ok
-- | --
GitHub Content | ok
GitHub Web | ok
HACS Data | ok
GitHub API Calls Remaining | 5000
Installed Version | 2.0.5
Stage | running
Available Repositories | 2426
Downloaded Repositories | 15

Home Assistant Cloud

logged_in | false
-- | --
can_reach_cert_server | ok
can_reach_cloud_auth | ok
can_reach_cloud | ok

Home Assistant Supervisor

host_os | Home Assistant OS 15.0
-- | --
update_channel | stable
supervisor_version | supervisor-2025.11.4
agent_version | 1.7.2
docker_version | 28.0.1
disk_total | 28.5 GB
disk_used | 15.5 GB
nameservers | 192.168.178.1
healthy | true
supported | true
host_connectivity | true
supervisor_connectivity | true
ntp_synchronized | true
virtualization |
board | rpi4-64
supervisor_api | ok
version_api | ok
installed_addons | Studio Code Server (6.0.0), ESPHome Device Builder (2025.11.0), Mosquitto broker (6.5.2), Let's Encrypt (5.4.9), Terminal & SSH (9.20.1)

Dashboards

dashboards | 2
-- | --
resources | 8
views | 5
mode | storage

Recorder

oldest_recorder_run | November 5, 2025 at 10:01
-- | --
current_recorder_run | November 22, 2025 at 03:05
estimated_db_size | 359.50 MiB
database_engine | sqlite
database_version | 3.49.2