Template:UbuntuJammyDesktop-Common

1 Account & Password

Regular Account:
    User Name: pi
    Password: pi

Root:
    the root user account is disabled by default, you may configure the root password through the 'sudo passwd root' command.

2 View IP address

Since the hostname is FriendlyElec.lan by default, you can use the ping command to get the IP address:

ping FriendlyElec.lan

3 Connect to Ubuntu via SSH

ssh pi@FriendlyElec.lan

The default password is: pi

4 Update Software Packages

$ sudo apt-get update

5 Install the kernel-header package

sudo dpkg -i /opt/linux-headers-*.deb

6 Change time zone

6.1 Check the current time zone

timedatectl

6.2 List all available time zones

timedatectl list-timezones

6.3 Set the time zone (e.g. Shanghai)

sudo timedatectl set-timezone Asia/Shanghai

7 Change startup LOGO and Wallpaper

7.1 Change startup LOGO

Replace the following two files in the kernel source code directory and recompile the kernel：
kernel/logo.bmp
kernel/logo_kernel.bmp
Or use the script to operate, as shown below：

• Download scripts:

git clone https://github.com/friendlyarm/sd-fuse_rk3399.git -b kernel-4.19
cd sd-fuse_rk3399

• Compile kernel and repackage firmware

convert files/logo.jpg -type truecolor /tmp/logo.bmp
convert files/logo.jpg -type truecolor /tmp/logo_kernel.bmp
LOGO=/tmp/logo.bmp KERNEL_LOGO=/tmp/logo_kernel.bmp ./build-kernel.sh ubuntu-jammy-desktop-arm64
./mk-emmc-image.sh ubuntu-jammy-desktop-arm64

8 Soft Factory Reset

Execute the following command in a terminal:

sudo firstboot && sudo reboot

9 Start the program automatically at startup(For example Kodi)

Put the desktop file in the ~/.config/autostart/ directory, for example：

mkdir ~/.config/autostart/
cp /usr/share/applications/firefox.desktop ~/.config/autostart/

10 Disable auto-mounting

sudo systemctl mask udisks2
sudo reboot

11 Setup Chinese language and Input method

11.1 Setup Chinese language

Enter the following command and select 'zh_CN.UTF-8':

sudo dpkg-reconfigure locales

Add environment variables to .bashrc:

echo "export LC_ALL=zh_CN.UTF-8" >> ~/.bashrc
echo "export LANG=zh_CN.UTF-8" >> ~/.bashrc
echo "export LANGUAGE=zh_CN.UTF-8" >> ~/.bashrc

Reboot device:

sudo reboot

12 Install Docker Engine

12.1 Install Docker Engine

sudo apt install apt-transport-https ca-certificates curl software-properties-common gnupg lsb-release
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt update
sudo apt install docker-ce docker-ce-cli containerd.io docker-compose-plugin

Let’s verify:

sudo docker info

12.2 Run Docker as a non-root user

sudo groupadd docker
sudo gpasswd -a ${USER} docker
sudo systemctl restart docker
sudo chmod a+rw /var/run/docker.sock

Let’s verify:

docker images

12.3 Testing Docker: Installing Nextcloud with docker

mkdir ~/nextcloud -p
docker run -d -p 8888:80  --name nextcloud  -v ~/nextcloud/:/var/www/html/ --restart=always --privileged=true  arm64v8/nextcloud

After installation, visit: http://Device-IP-Address:8888 on your computer browser to view the nextcloud web page.