Got my new RPi4 4GB running with the beta Hass.io. My Systemmonitor sensor seems to think its only able to access 1GB of ram:
Does Hass.io simply use the rest for the addons or does it not understand the 4GB version yet and i need to raise a bug?
What does the free command tell you?
Free shows:
HA shows:
Hi,
free command is actually showing that you have only 1GB of RAM available (âtotalâ column). is your RPi really a 4GB model?
Kostya
As a very basic test to rule out any hw issues Iâd try to boot into freshly installed linux and check the amount of RAM it recognises. Unless you havenât done that already 
Maybe you have been ripped off?
Free and HA both show the same RAM used/free, looks like you have 1 GB Pi4 not a 4 GB, you may want to return it for the proper model.
@firstof9 and @kostya i just loaded raspbian onto another SD card, everything else is the same, seems to show the 4GB version:
Swapped the card back again and HA still shows 1GBâŚ
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Always good to verify, someone may need to compile a HassIO image with a 4GB limit for you then.
Iâm still seeing the issue in 98.3 - are you on a dev branch?
Hassio dev yep
When will the fix make it to the released version? Does anybody know? Cause mine also still shows 1GB⌠And I just updated to the latest versionâŚ
Aha! It has been released - i just didnât know how to update.
According to this bug ticket:
It was fixed by this bug ticket:
It looks like issue 459 is on âhassosâ, which is different than âhome-assistant.â
In short, the bug fix isnât part of the usual âhome assistantâ update, which appears at /hassio/dashboard. (for example, 93.x)
Itâs part of the âhassosâ update - which is on a different page: /hassio/system
You can click âUpdateâ on the âHost Systemâ panel to get the latest version of Hassos. I went from 3.3 to 3.5, and now Home assistant is seeing all 4Gb.
This issue has just bitten me after updating HomeAssistant to 0.101.3, and now HassOS is at 3.3.
I canât currently upgrade to 3.5 via HomeAssistant because the Raspberry Pi is out of memory when stuck at 1GB, and the system becomes unresponsive, even on the command line over SSH.
So it would seem my only option is to download a HassOS 3.5 image from https://github.com/home-assistant/hassos/releases/tag/3.5, but I have no idea what to do with the image after that.
Well it took way too long to figure out, but HassOS can do âover the airâ updates using the semi-magical, semi-functional Config drive: https://github.com/home-assistant/hassos/blob/712dcf9f74497eef6a75ed1e76f8ae8817ae3ee6/Documentation/configuration.md
For some reason the raucb file wasnât being installed from the config drive, but I added the authorized_keys file and that set up an SSH server so that I could SSH in, and then manually run:
mount /dev/sda1 /mnt/config
rauc install /mnt/config/hassos-35.raucb
systemctl reboot
So now Iâm on HassOS 3.5 and itâs seeing all 4GB again. But HomeAssistant is still failing to start for some reason.
Your log should tell us why.