Tag: systemd

Not Wait For Network

systemd-networkd-wait-online.service is a once shot service that holds the rest of boot up to wait until the network is up. This is fine for 99% of cases but it’s not fine for my USB storage that is used for diagnosing hardware problem. In other word, the reason I’m booting from this USB stick is for trouble shooting network. If you are using Network Manager, it would be fine, then again, this is to trouble shoot the netplan config file and what not.
In any rate, I don’t want to forever for network to be up.

systemd-networkd-wait-online.service is the one shot service that waits for the network up and running so that’s what I have to disable.
sudo systemctl disable systemd-networkd-wait-online.service
sudo systemctl mask systemd-networkd-wait-online.service
This is the 2nd time I googled, so it’s better to be left here.

Chrome Kiosk mode on Ubuntu 18.04 LTS

As of 18.04, X11 server requires root priv to run. This made Chrome kiosk mode to complain if you run Chrome as root too. Previously, the whole X11/Chrome was running as a unprev user. Here is the service unit, and starting Chrome as normal user.

UPDATE: 2023-01-10 Chrome became not-liked app in Ubunte, and Firefox has a kiosk mode too. Switching to Firefox

[Unit]
Description=Kiosk Web Browser
After=dbus.target network.target sound.target network-online.target
StartLimitIntervalSec=0

[Service]
Type=simple
Restart=always
RestartSec=30
User=root
ExecStart=/usr/bin/startx /etc/X11/Xsession /usr/local/bin/kiosk.sh --

[Install]
WantedBy=multi-user.target

And here is /usr/local/bin/kiosk.sh

#!/bin/bash
xset -dpms
xset s off
xhost + localhost SI:localuser:
sudo -H -u  DISPLAY=$$DISPLAY openbox-session &
sudo -H -u  DISPLAY=$$DISPLAY start-pulseaudio-x11
while true; do
  sudo -H -u  rm -rf /home/triage/.{config,cache}/google-chrome/
  sudo -H -u  google-chrome --display=$$DISPLAY --kiosk --no-first-run 'http://localhost'
done