No CPU temperature for Intel Celeron DN2820

The problem

I’m running on an Intel NUC DN2820FYKH which i believe uses the Bay Trail processor. The CPU temp is exposed in the system bios. There is no processor temperature reported via System Monitor integration. There is no folder called thermal_zoneX

What version of Home Assistant Core has the issue?

core-2021.12.9

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant OS

Integration causing the issue

systemmonitor

Link to integration documentation on our website

https://www.home-assistant.io/integrations/systemmonitor

Example YAML snippet

- platform: systemmonitor
    resources:
      - type: disk_use_percent
      - type: disk_use
      - type: disk_free
      - type: memory_use_percent
      - type: memory_free
      - type: processor_use
      - type: memory_use
      - type: swap_use
  - platform: version
    source: local
    name: HomeAssistant Version
  - platform: command_line
    name: "cpu_temperature"
    command: "cat /sys/class/thermal/thermal_zone2/temp"
    unit_of_measurement: "°C"
    value_template: '{{ value | multiply(0.001) | round(2) }}'  - platform: systemmonitor
    resources:
      - type: disk_use_percent
      - type: disk_use
      - type: disk_free
      - type: memory_use_percent
      - type: memory_free
      - type: processor_use
      - type: memory_use
      - type: swap_use
  - platform: version
    source: local
    name: HomeAssistant Version
  - platform: command_line
    name: "cpu_temperature"
    command: "cat /sys/class/thermal/thermal_zone2/temp"
    unit_of_measurement: "°C"
    value_template: '{{ value | multiply(0.001) | round(2) }}'

Anything in the logs that might be useful for us?

cat: can't open '/sys/class/thermal/thermal_zone2/temp': No such file or directory
2022-01-19 18:18:48 ERROR (SyncWorker_4) [homeassistant.components.command_line] Command failed: cat /sys/class/thermal/thermal_zone2/temp
cat: can't open '/sys/class/thermal/thermal_zone2/temp': No such file or directory
2022-01-19 18:19:48 ERROR (SyncWorker_4) [homeassistant.components.command_line] Command failed: cat /sys/class/thermal/thermal_zone2/temp
cat: can't open '/sys/class/thermal/thermal_zone2/temp': No such file or directory
2022-01-19 18:20:48 ERROR (SyncWorker_3) [homeassistant.components.command_line] Command failed: cat /sys/class/thermal/thermal_zone2/temp
cat: can't open '/sys/class/thermal/thermal_zone2/temp': No such file or directory
2022-01-19 18:21:48 ERROR (SyncWorker_5) [homeassistant.components.command_line] Command failed: cat /sys/class/thermal/thermal_zone2/temp
cat: can't open '/sys/class/thermal/thermal_zone2/temp': No such file or directory
2022-01-19 18:22:48 ERROR (SyncWorker_2) [homeassistant.components.command_line] Command failed: cat /sys/class/thermal/thermal_zone2/temp
cat: can't open '/sys/class/thermal/thermal_zone2/temp': No such file or directory
2022-01-19 18:23:48 ERROR (SyncWorker_2) [homeassistant.components.command_line] Command failed: cat /sys/class/thermal/thermal_zone2/temp
cat: can't open '/sys/class/thermal/thermal_zone2/temp': No such file or directory
2022-01-19 18:24:48 ERROR (SyncWorker_3) [homeassistant.components.command_line] Command failed: cat /sys/class/thermal/thermal_zone2/temp
cat: can't open '/sys/class/thermal/thermal_zone2/temp': No such file or directory
2022-01-19 18:25:48 ERROR (SyncWorker_0) [homeassistant.components.command_line] Command failed: cat /sys/class/thermal/thermal_zone2/temp
cat: can't open '/sys/class/thermal/thermal_zone2/temp': No such file or directory
2022-01-19 18:26:48 ERROR (SyncWorker_5) [homeassistant.components.command_line] Command failed: cat /sys/class/thermal/thermal_zone2/temp
cat: can't open '/sys/class/thermal/thermal_zone2/temp': No such file or directory
2022-01-19 18:27:48 ERROR (SyncWorker_2) [homeassistant.components.command_line] Command failed: cat /sys/class/thermal/thermal_zone2/temp
cat: can't open '/sys/class/thermal/thermal_zone2/temp': No such file or directory
2022-01-19 18:28:48 ERROR (SyncWorker_4) [homeassistant.components.command_line] Command failed: cat /sys/class/thermal/thermal_zone2/temp
cat: can't open '/sys/class/thermal/thermal_zone2/temp': No such file or directory
2022-01-19 18:29:48 ERROR (SyncWorker_2) [homeassistant.components.command_line] Command failed: cat /sys/class/thermal/thermal_zone2/temp
cat: can't open '/sys/class/thermal/thermal_zone2/temp': No such file or directory
2022-01-19 18:30:48 ERROR (SyncWorker_4) [homeassistant.components.command_line] Command failed: cat /sys/class/thermal/thermal_zone2/temp

Additional information

This issue was previously raised by another user here: https://github.com/home-assistant/core/issues/57048

[Scoff123]

This is still an issue, running the latest: Home Assistant Core 2022.5.3 Home Assistant Supervisor 2022.05.1 Home Assistant OS 7.6 Kernel version 5.10.108

HWMon folder is still empty, and there are no thermal zone sub directories under the thermal directory.

[bearhntr]

I have done about a dozen installs of the Generic x86-x64 HASS OS installation 8.4 to an HP ThinClient t620 and an Intel NUC (as well as other installed ‘Supervised on Debian 11’, 'VMWare" and ‘Proxmox attempted’). It has an AMD GX-415GA 1.5 GHz quad-core CPU. When I initially got started with HA - I built out the HA “Supervised” version on a DEBIAN 11 (HA 2022.7.6) load. It seemed to work fine - Wi-Fi was detected, and it appeared that everything else did as well. I then came to realize that at some point DEBIAN 11 would be to old, and opted to put the HASS OS installation on here. Now I cannot seem to get a CPU Temp reading using the same lines as I was using for DEBIAN (in fact the HWMON folders appear to be empty on HASS OS).

The installations that I am using now are HASS OS using the ‘Generic x86-x64 install’ from here: Generic x86-64 - Home Assistant 1

When I was using Debian - I used these: Installing Home Assistant Supervised on Debian 11 1

Is there someplace in HASS OS that I can see if ‘this value’ is actually being pulled from the CPU (in the OS)? I would not think the AMD CPU would be that different from an INTEL CPU. I have another one of these HP t620 that is running pfSense (FreeBSD) and it shows me the CPU temp and other things.

I have performed a test - I made a bootable Alpine 3.15.0 (from their Standard .ISO) to a USB device and I booted with it. I then followed the path listed in the CPU_TEMP (Command Line) page Command line Sensor - Home Assistant 1

– this path does not exist: /sys/class/thermal/thermal_zone0/temp

but I tracked it down to the following path and file: /sys/class/hwmon/hwmon1/temp1_input

I then shut down, and removed the Alpine Linux 3.15.0 LIVE USB and booted back to the HASS OS 8.4 installation - went looking for the same data…it is not there. Why? Why would it be different?

Please assist in getting this working - being able to monitor the TEMP of a small device which is basically headless and out-of-site - is CRITICAL.