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1.3.1 RDK S100 Initial Setup

Default Login Accounts​

Before configuring the system, you need to log in first. The RDK S100 system provides two default accounts:

  • Standard User: Username sunrise, Password sunrise
  • Superuser (root): Username root, Password root

Connect to Wi-Fi​

Follow the Ubuntu 22.04 Wi-Fi connection guide.

Enable SSH Service​

The current system version enables the SSH login service by default. Users can use the following method to start or stop the SSH service.

For instructions on using SSH, please refer to Remote Login - SSH Login.

Set Login Mode​

Automatic Login on Text Terminal​

Modify the serial-getty@.service file to enable passwordless login. Follow the steps below:

  1. Open serial-getty@.service:
# If logged in as root
vim /lib/systemd/system/serial-getty@.service
# If logged in as sunrise user
sudo vim /lib/systemd/system/serial-getty@.service
  1. Modify the line containing ExecStart=-/sbin/agetty as follows:
ExecStart=-/sbin/agetty -a root --keep-baud 921600,115200,38400,9600 %I $TERM

Parameter Explanation:
The -a parameter specifies the username for automatic login. The option -o '-p -- \\u' further customizes the login process by preserving the current environment variables and displaying the username in the login prompt.

  1. After rebooting, the user will be automatically logged in.

Automatic Login on Graphical Terminal​

To be updated.

Configure Chinese Locale​

  1. Install required packages:
sudo apt install language-pack-zh-hans language-pack-zh-hans-base fonts-wqy-microhei
  • language-pack-zh-hans: Contains Chinese translation files to display the system interface in Chinese.
  • language-pack-zh-hans-base: Provides basic Chinese language support.
  • fonts-wqy-microhei: Installs Chinese fonts.
  1. Open a terminal and edit the locale configuration file:
sudo vim /etc/default/locale

Add or modify the following content in the file:

LANG=zh_CN.UTF-8
LANGUAGE=zh_CN:zh
LC_ALL=zh_CN.UTF-8
  1. Apply the new configuration:
fc-cache -fv
source /etc/default/locale

Configure RDK Studio​

To be updated.

NoMachine Configuration​

NoMachine is currently not available via apt and must be downloaded as a .deb package from the official website.

Official NoMachine download page: NoMachine Download

Download the Installation Package

On the official website, locate and download the ARM64 version suitable for RDK S100, then click Download.

image_s100_nomachine_dl

Installation

sudo apt update; sudo apt upgrade -y   // Ensure all packages are up to date
dpkg -i nomachine_*_arm64.deb

Configuration and Startup

  1. Configure the server to allow remote connections:

    sudo systemctl start nxserver

  2. Enable NoMachine to start automatically on boot:

    sudo systemctl enable nxserver

  3. Enable EGL Capture (a screen capture feature provided by NoMachine to enhance remote desktop experience in certain display server environments):

    sudo /etc/NX/nxserver --eglcapture yes

    This setting takes effect after a reboot. You can verify it using the following command. If the output shows EGL Capture has been enabled, the feature has been successfully configured:

    if [ -f "/usr/lib/systemd/user/org.gnome.Shell@wayland.service" ] && grep -q "nxpreload.sh" "/usr/lib/systemd/user/org.gnome.Shell@wayland.service" && [ -f "/usr/share/applications/org.gnome.Shell.desktop" ] && grep -q "nxpreload.sh" "/usr/share/applications/org.gnome.Shell.desktop" && [ -f "/usr/NX/etc/node.cfg" ] && grep -q "EnableEGLCapture 1" "/usr/NX/etc/node.cfg"; then echo "EGL Capture has been enabled"; else echo "Not enabled"; fi

  4. Restart the NoMachine service:

    sudo systemctl restart nxserver

Reboot the RDK S100 Due to a configuration issue with NXServer, directly connecting after performing the above steps will result in a black screen; a reboot is required before use.

For instructions on using NoMachine, please refer to Remote Login - NoMachine Login.

User Management​

Change Username

Taking the new username as usertest as an example:

# Terminate all processes owned by the 'sunrise' user
sudo pkill -u sunrise
# Rename the 'sunrise' user to 'usertest'
sudo usermod -l usertest sunrise
# Change the user's home directory to /home/usertest
sudo usermod -d /home/usertest -m usertest
# Change the user's password
sudo passwd usertest

Finally, update the username configured for automatic login in the desktop service:

  • gdm: The default desktop service for RDK S100. Change AutomaticLogin = sunrise to AutomaticLogin = usertest in the file /etc/gdm3/custom.conf.
  • lightdm: Change autologin-user=sunrise to autologin-user=usertest in the file /etc/lightdm/lightdm.conf.d/22-hobot-autologin.conf.

Add a New User

Taking the addition of a new user named usertest as an example:

sudo useradd -U -m -d /home/usertest -k /etc/skel/ -s /bin/bash -G disk,kmem,dialout,sudo,audio,video,render,i2c,lightdm,vpu,gdm,weston-launch,graphics,jpu,ipu,vps,misc,gpio usertest
sudo passwd usertest
sudo cp -aRf /etc/skel/. /home/usertest
sudo chown -R usertest:usertest /home/usertest

You may also refer to the username modification steps above to configure the newly added user for automatic login.

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