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Configuration

Automatic

You can use an USB drive with HassOS to configure network options, SSH access to the host and to install updates. Format a USB stick with FAT32/EXT4/NTFS and name it CONFIG (in all capitals). Alternative you can create a CONFIG folder inside the boot partition. Use the following directory structure within the USB drive:

network/
modules/
modprobe/
udev/
authorized_keys
timesyncd.conf
hassos-xy.raucb
  • The network folder can contain any kind of NetworkManager connection files. For more information see Network.
  • The modules folder is for modules-load configuration files.
  • The modprobe folder is for modules configuration files (/etc/modprobe.d)
  • The udev folder is for udev rules files.
  • The authorized_keys file activates debug SSH access on port 22222. See Debugging Home Assistant.
  • The timesyncd.conf file allow you to set different NTP servers. HassOS won't boot without correct working time servers!
  • The hassos-*.raucb file is a firmware OTA update which will be installed. These can be found on on the release page.

You can put this USB stick into the device and it will be read on startup and files written to the correct places. You can also trigger this process later over the API/UI or by calling systemctl restart hassos-config on the host. The USB Stick just needs to be inserted to the device during this setup process and can be disconnected afterwards.

Local

Bootargs

You can edit or create a cmdline.txt in your boot partition. That will be read from the bootloader.

Kernel-Module

The kernel module folder /etc/modules-load.d is persistent and you can add your configuration files there. See Systemd modules load. You can add the modules configuration files in /etc/modprobe.d that is also persistent.

Udev rules

The udev rules folder /etc/udev/rules.d is persistent and you can add your configuration files there.

Network

You can manual add, edit or remove connections configurations from /etc/NetworkManager/system-connections.

NTP

You can manual edit the systemd timesync file on /etc/systemd/timesyncd.conf.

Our default NTP configuration look like:

[Time]
NTP=time1.google.com time2.google.com time3.google.com
FallbackNTP=0.pool.ntp.org 1.pool.ntp.org 2.pool.ntp.org 3.pool.ntp.org