I switched from HassOS on RaspPi to HassOS on Virtualbox OSE two weeks ago.
I am running it headless and the system is running fine so far. Home Assistant OS 5.9 Home Assistant Core 2021.1.0 Addons: InfluxDB, MariaDB, PhpMyAdmin, Terminal & SSH, Samba Share, JupyterLab Lite, Log Viewer, File Editor Integrations: MQTT, deConz, Hue, Modbus, SNMP, IPP, Mobile App, OpenWeatherMap
I modified the guest:
VBoxManage modifyvm “Home Assistant” --nic1 bridged --bridgeadapter1 enp2s0 --memory 12024 --vram 16 --cpus 3 --usb off --cableconnected1 on
But the entire VM guest crashed twice already. First time five days ago and then half an hour ago.
The VirtualBox process takes ~30% of the host CPU at that time and required hard rebooting. I cannot access any HA service, even a ping to the VM guest fails.