Making initial configuration for the devices.
Download Raspbian Lite and flash it to an SD card and all USBs.
Default user is
pi, password is
On a first RPI boot from SD card and upgrade all:
sudo apt-get install && sudo apt-get upgrade
Add the following line to the end of
WARN Don't create any new lines.
Reboot device and validate that USB boot is enabled:
$ vcgencmd otp_dump | grep 17 17:3020000a
Boot from this SD card all others RPis. At this point you can start booting from a USB sticks.
On every node you need to setup static IP in
/etc/dhcpcd.conf (use your network):
profile static_wlan0 static ip_address=192.168.0.101/24 static routers=192.168.0.1 static domain_name_servers=220.127.116.11
You may choose to setup static IPs through your router.
Then setup through
- WiFi connection
- Host name, e.g.
- Change pi password
Last but not least is to enable
ntp which will sync clocks between your workers.
This is extremely important since server will drop too old messages.
ntpis disabled by default in the latest system versions.
sudo apt install ntp sudo systemctl enable ntp sudo timedatectl set-ntp 1
To adjust your timezone run
raspi-config and go to
Localization Options ->