Daily automatic Backup error

AndreL79 · September 16, 2026, 8:44am

Home Assistant OS
Core 2026.9.2
Supervisor 2026.09.0
Operating System 18.2
Frontend 20260826.7

Automatic Backup doesn’t work
manually start automatic Backup works

Log automatic Backup:

2026-09-16 09:45:50.115 WARNING (MainThread) [supervisor.apps.options] Unknown option 'disable_led' for Zigbee2MQTT (45df7312_zigbee2mqtt)
2026-09-16 09:45:50.115 WARNING (MainThread) \[supervisor.apps.options\] Unknown option 'advanced' for Zigbee2MQTT (45df7312_zigbee2mqtt)
2026-09-16 10:00:49.961 WARNING (MainThread) \[supervisor.apps.options\] Unknown option 'disable_led' for Zigbee2MQTT (45df7312_zigbee2mqtt)
2026-09-16 10:00:49.961 WARNING (MainThread) \[supervisor.apps.options\] Unknown option 'advanced' for Zigbee2MQTT (45df7312_zigbee2mqtt)
2026-09-16 10:15:49.961 WARNING (MainThread) \[supervisor.apps.options\] Unknown option 'disable_led' for Zigbee2MQTT (45df7312_zigbee2mqtt)
2026-09-16 10:15:49.961 WARNING (MainThread) \[supervisor.apps.options\] Unknown option 'advanced' for Zigbee2MQTT (45df7312_zigbee2mqtt)
2026-09-16 10:30:00.011 INFO (MainThread) \[supervisor.backups.manager\] Backup 031b7032 starting stage app_repositories
2026-09-16 10:30:00.011 INFO (MainThread) \[supervisor.backups.manager\] Creating new partial backup with slug 031b7032
2026-09-16 10:30:00.043 INFO (MainThread) \[supervisor.backups.manager\] Backup 031b7032 starting stage home_assistant
2026-09-16 10:30:00.147 INFO (MainThread) \[supervisor.homeassistant.module\] Backing up Home Assistant Core config folder
2026-09-16 10:30:05.487 INFO (MainThread) \[supervisor.homeassistant.module\] Backup Home Assistant Core config folder done
2026-09-16 10:30:05.490 INFO (MainThread) \[supervisor.backups.manager\] Backup 031b7032 starting stage apps
2026-09-16 10:30:05.495 INFO (MainThread) \[supervisor.apps.app\] Building backup for app core_matter_server
2026-09-16 10:30:05.631 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app core_matter_server
2026-09-16 10:30:05.634 INFO (MainThread) \[supervisor.apps.app\] Building backup for app core_configurator
2026-09-16 10:30:05.654 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app core_configurator
2026-09-16 10:30:05.657 INFO (MainThread) \[supervisor.apps.app\] Building backup for app a0d7b954_ssh
2026-09-16 10:30:05.670 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app a0d7b954_ssh
2026-09-16 10:30:05.673 INFO (MainThread) \[supervisor.apps.app\] Building backup for app a0d7b954_vscode
2026-09-16 10:30:05.946 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app a0d7b954_vscode
2026-09-16 10:30:05.949 INFO (MainThread) \[supervisor.apps.app\] Building backup for app core_openwakeword
2026-09-16 10:30:05.965 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app core_openwakeword
2026-09-16 10:30:05.968 INFO (MainThread) \[supervisor.apps.app\] Building backup for app core_samba
2026-09-16 10:30:05.982 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app core_samba
2026-09-16 10:30:05.984 INFO (MainThread) \[supervisor.apps.app\] Building backup for app core_mosquitto
2026-09-16 10:30:05.998 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app core_mosquitto
2026-09-16 10:30:06.000 INFO (MainThread) \[supervisor.apps.app\] Building backup for app 45df7312_zigbee2mqtt
2026-09-16 10:30:06.016 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app 45df7312_zigbee2mqtt
2026-09-16 10:30:06.019 INFO (MainThread) \[supervisor.apps.app\] Building backup for app core_rpc_shutdown
2026-09-16 10:30:06.030 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app core_rpc_shutdown
2026-09-16 10:30:06.033 INFO (MainThread) \[supervisor.apps.app\] Building backup for app a0d7b954_influxdb
2026-09-16 10:30:10.888 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app a0d7b954_influxdb
2026-09-16 10:30:10.890 INFO (MainThread) \[supervisor.apps.app\] Building backup for app a0d7b954_grafana
2026-09-16 10:30:10.913 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app a0d7b954_grafana
2026-09-16 10:30:10.918 INFO (MainThread) \[supervisor.apps.app\] Building backup for app core_piper
2026-09-16 10:30:11.460 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app core_piper
2026-09-16 10:30:11.462 INFO (MainThread) \[supervisor.apps.app\] Building backup for app 3fd9e6b0_hamh
2026-09-16 10:30:11.599 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app 3fd9e6b0_hamh
2026-09-16 10:30:11.600 INFO (MainThread) \[supervisor.backups.manager\] Backup 031b7032 starting stage folders
2026-09-16 10:30:11.600 INFO (SyncWorker_0) \[supervisor.backups.backup\] Backing up folder media
2026-09-16 10:30:11.614 INFO (SyncWorker_0) \[supervisor.backups.backup\] Backup folder media done
2026-09-16 10:30:11.614 INFO (SyncWorker_5) \[supervisor.backups.backup\] Backing up folder ssl
2026-09-16 10:30:11.616 INFO (SyncWorker_5) \[supervisor.backups.backup\] Backup folder ssl done
2026-09-16 10:30:11.616 INFO (SyncWorker_4) \[supervisor.backups.backup\] Backing up folder share
2026-09-16 10:30:11.619 INFO (SyncWorker_4) \[supervisor.backups.backup\] Backup folder share done
2026-09-16 10:30:11.619 INFO (MainThread) \[supervisor.backups.manager\] Backup 031b7032 starting stage supervisor_config
2026-09-16 10:30:11.620 INFO (SyncWorker_2) \[supervisor.backups.backup\] Backing up supervisor configuration
2026-09-16 10:30:11.624 INFO (SyncWorker_2) \[supervisor.backups.backup\] Backup supervisor configuration done
2026-09-16 10:30:11.625 INFO (MainThread) \[supervisor.backups.manager\] Backup 031b7032 starting stage finishing_file
2026-09-16 10:30:47.842 ERROR (MainThread) \[supervisor.backups.manager\] Backup 031b7032 error
Traceback (most recent call last):
  File "/usr/src/supervisor/supervisor/backups/manager.py", line 535, in \_do_backup
    async with backup.create():
               \~\~\~\~\~\~\~\~\~\~\~\~\~^^
  File "/usr/local/lib/python3.14/contextlib.py", line 221, in \__aexit_\_
    await anext(self.gen)
  File "/usr/src/supervisor/supervisor/backups/backup.py", line 521, in create
    size_bytes = await self.sys_run_in_executor(\_close_outer_tarfile)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.14/concurrent/futures/thread.py", line 86, in run
    result = ctx.run(self.task)
  File "/usr/local/lib/python3.14/concurrent/futures/thread.py", line 73, in run
    return fn(\*args, \*\*kwargs)
  File "/usr/src/supervisor/supervisor/backups/backup.py", line 505, in \_close_outer_tarfile
    outer_secure_tarfile.close()
    \~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~^^
  File "/usr/local/lib/python3.14/site-packages/securetar/\__init_\_.py", line 1385, in close
    self.\_tar.close()
    \~\~\~\~\~\~\~\~\~\~\~\~\~\~\~^^
  File "/usr/local/lib/python3.14/tarfile.py", line 2144, in close
    self.fileobj.close()
    \~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~^^
BlockingIOError: \[Errno 11\] Resource temporarily unavailable

Log manually automatic Backup

2026-09-16 10:30:49.961 WARNING (MainThread) [supervisor.apps.options] Unknown option 'disable_led' for Zigbee2MQTT (45df7312_zigbee2mqtt)
2026-09-16 10:30:49.961 WARNING (MainThread) \[supervisor.apps.options\] Unknown option 'advanced' for Zigbee2MQTT (45df7312_zigbee2mqtt)
2026-09-16 10:31:15.024 INFO (MainThread) \[supervisor.backups.manager\] Backup bc3e9e05 starting stage app_repositories
2026-09-16 10:31:15.025 INFO (MainThread) \[supervisor.backups.manager\] Creating new partial backup with slug bc3e9e05
2026-09-16 10:31:15.054 INFO (MainThread) \[supervisor.backups.manager\] Backup bc3e9e05 starting stage home_assistant
2026-09-16 10:31:15.194 INFO (MainThread) \[supervisor.homeassistant.module\] Backing up Home Assistant Core config folder
2026-09-16 10:31:18.357 INFO (MainThread) \[supervisor.homeassistant.module\] Backup Home Assistant Core config folder done
2026-09-16 10:31:18.360 INFO (MainThread) \[supervisor.backups.manager\] Backup bc3e9e05 starting stage apps
2026-09-16 10:31:18.362 INFO (MainThread) \[supervisor.apps.app\] Building backup for app core_matter_server
2026-09-16 10:31:18.458 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app core_matter_server
2026-09-16 10:31:18.461 INFO (MainThread) \[supervisor.apps.app\] Building backup for app core_configurator
2026-09-16 10:31:18.474 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app core_configurator
2026-09-16 10:31:18.477 INFO (MainThread) \[supervisor.apps.app\] Building backup for app a0d7b954_ssh
2026-09-16 10:31:18.490 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app a0d7b954_ssh
2026-09-16 10:31:18.492 INFO (MainThread) \[supervisor.apps.app\] Building backup for app a0d7b954_vscode
2026-09-16 10:31:18.757 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app a0d7b954_vscode
2026-09-16 10:31:18.761 INFO (MainThread) \[supervisor.apps.app\] Building backup for app core_openwakeword
2026-09-16 10:31:18.776 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app core_openwakeword
2026-09-16 10:31:18.778 INFO (MainThread) \[supervisor.apps.app\] Building backup for app core_samba
2026-09-16 10:31:18.789 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app core_samba
2026-09-16 10:31:18.792 INFO (MainThread) \[supervisor.apps.app\] Building backup for app core_mosquitto
2026-09-16 10:31:18.806 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app core_mosquitto
2026-09-16 10:31:18.808 INFO (MainThread) \[supervisor.apps.app\] Building backup for app 45df7312_zigbee2mqtt
2026-09-16 10:31:18.820 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app 45df7312_zigbee2mqtt
2026-09-16 10:31:18.823 INFO (MainThread) \[supervisor.apps.app\] Building backup for app core_rpc_shutdown
2026-09-16 10:31:18.834 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app core_rpc_shutdown
2026-09-16 10:31:18.836 INFO (MainThread) \[supervisor.apps.app\] Building backup for app a0d7b954_influxdb
2026-09-16 10:31:21.250 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app a0d7b954_influxdb
2026-09-16 10:31:21.253 INFO (MainThread) \[supervisor.apps.app\] Building backup for app a0d7b954_grafana
2026-09-16 10:31:21.274 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app a0d7b954_grafana
2026-09-16 10:31:21.277 INFO (MainThread) \[supervisor.apps.app\] Building backup for app core_piper
2026-09-16 10:31:21.625 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app core_piper
2026-09-16 10:31:21.628 INFO (MainThread) \[supervisor.apps.app\] Building backup for app 3fd9e6b0_hamh
2026-09-16 10:31:21.748 INFO (MainThread) \[supervisor.apps.app\] Finish backup for app 3fd9e6b0_hamh
2026-09-16 10:31:21.749 INFO (MainThread) \[supervisor.backups.manager\] Backup bc3e9e05 starting stage folders
2026-09-16 10:31:21.749 INFO (SyncWorker_4) \[supervisor.backups.backup\] Backing up folder media
2026-09-16 10:31:21.755 INFO (SyncWorker_4) \[supervisor.backups.backup\] Backup folder media done
2026-09-16 10:31:21.755 INFO (SyncWorker_2) \[supervisor.backups.backup\] Backing up folder ssl
2026-09-16 10:31:21.757 INFO (SyncWorker_2) \[supervisor.backups.backup\] Backup folder ssl done
2026-09-16 10:31:21.757 INFO (SyncWorker_3) \[supervisor.backups.backup\] Backing up folder share
2026-09-16 10:31:21.759 INFO (SyncWorker_3) \[supervisor.backups.backup\] Backup folder share done
2026-09-16 10:31:21.760 INFO (MainThread) \[supervisor.backups.manager\] Backup bc3e9e05 starting stage supervisor_config
2026-09-16 10:31:21.761 INFO (SyncWorker_0) \[supervisor.backups.backup\] Backing up supervisor configuration
2026-09-16 10:31:21.762 INFO (SyncWorker_0) \[supervisor.backups.backup\] Backup supervisor configuration done
2026-09-16 10:31:21.762 INFO (MainThread) \[supervisor.backups.manager\] Backup bc3e9e05 starting stage finishing_file
2026-09-16 10:31:28.647 INFO (MainThread) \[supervisor.backups.manager\] Creating partial backup with slug bc3e9e05 completed

Has anyone Idea?

Sir_Goodenough · September 16, 2026, 5:48pm

The partial backup is smaller, and it fits while the full backup doesn’t?

Sometimes rebooting the host clears tmp files that are taking space and that helps. However if you are using half the available space for your instance, the backup of about the same size has to fit on that disk when it creates the backup tarball.
You should have at least double the empty space as you have used space, if you know what I mean. Max 1/3 actual data, 2/3 empty space to ensure no problems.

ShadowFist · September 16, 2026, 8:12pm

And fix your Z2M configuration while you’re at it

AndreL79 · September 17, 2026, 11:11am

Thanks, its solved

Sir_Goodenough · September 17, 2026, 6:52pm

It would be awesome to click the solution tag then so it gets closed.

AndreL79 · September 25, 2026, 7:13am

Sorry, its not solved, i have every Day the same error

2026-09-25 09:08:00.437 ERROR (MainThread) [supervisor.backups.manager] Backup 1b19d2ec error
Traceback (most recent call last):
  File "/usr/src/supervisor/supervisor/backups/manager.py", line 539, in \_do_backup
    async with backup.create():
               \~\~\~\~\~\~\~\~\~\~\~\~\~^^
  File "/usr/local/lib/python3.14/contextlib.py", line 221, in \__aexit_\_
    await anext(self.gen)
  File "/usr/src/supervisor/supervisor/backups/backup.py", line 532, in create
    size_bytes = await self.sys_run_in_executor(\_close_outer_tarfile)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.14/concurrent/futures/thread.py", line 86, in run
    result = ctx.run(self.task)
  File "/usr/local/lib/python3.14/concurrent/futures/thread.py", line 73, in run
    return fn(\*args, \*\*kwargs)
  File "/usr/src/supervisor/supervisor/backups/backup.py", line 516, in \_close_outer_tarfile
    outer_secure_tarfile.close()
    \~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~^^
  File "/usr/local/lib/python3.14/site-packages/securetar/\__init_\_.py", line 1385, in close
    self.\_tar.close()
    \~\~\~\~\~\~\~\~\~\~\~\~\~\~\~^^
  File "/usr/local/lib/python3.14/tarfile.py", line 2144, in close
    self.fileobj.close()
    \~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~\~^^
BlockingIOError: \[Errno 11\] Resource temporarily unavailable

direct after restart VM is OK
on same day later, error