Template:OfficialDebianCore

1 Work with Debian Core

1.1 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.

1.2 View IP address

Since the Debian Bullseye hostname is the hardware model by default, you can use the ping command to get the IP address:ping {{{1}}}
Debian Bullseye uses network-manager to manage the network, and the network ports are configured to automatically obtain IP addresses by DHCP (including devices with multiple network ports).

1.3 Connect to Debian via SSH

Run the following commandssh pi@{{{1}}}
The default password is: pi

1.4 Update Software Packages

$ sudo apt-get update

1.5 Change time zone

1.5.1 Check the current time zone

timedatectl

1.5.2 List all available time zones

timedatectl list-timezones

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

sudo timedatectl set-timezone Asia/Shanghai

1.6 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 --single-branch
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
sudo LOGO=/tmp/logo.bmp KERNEL_LOGO=/tmp/logo_kernel.bmp ./build-kernel.sh debian-bullseye-core-arm64
sudo ./mk-sd-image.sh debian-bullseye-core-arm64
sudo ./mk-emmc-image.sh debian-bullseye-core-arm64

1.7 Soft Factory Reset

Execute the following command in a terminal:

sudo firstboot && sudo reboot

1.8 Install Docker

1.8.1 Create an additional partition for Docker

Note 1: This operation will erase user data in the system, so please make a backup beforehand.
Note 2: The firmware (or boot.img) needs to be updated to version on or after March 14th, 2023
Note 3: The device node /dev/mmcblkX needs to be changed to the actual device. For eMMC, the device node is /dev/mmcblk2, and for TF card, the device node is /dev/mmcblk0.

• Check the current partition layout

sudo apt update
sudo apt install parted fdisk
export DEV=/dev/mmcblkX
sudo parted -s ${DEV} unit MiB print

• Adjust the userdata partition to 8GB

Here, 8GB is used as an example. The partition size can be adjusted according to your needs:

sudo passwd root  # Create a password for the root user
su - root -c 'echo "overlayfs=enable userdata=8096" > /.init_wipedata'
sudo reboot

After reboot, confirm that the partition has been adjusted and you can see that the userdata partition is now 8GB：

sudo parted -s ${DEV} unit MiB print

• Create a new partition and format it:

(echo n; echo ""; echo ""; echo ""; echo w) | sudo fdisk ${DEV}
NUM=$(sudo parted ${DEV} print | awk 'NF > 1 {p = $1} END {print p}')  # Get the index of the last partition
sudo mkfs.ext4 ${DEV}p${NUM}

• Mount the partition to the Docker data directory:

sudo mkdir /var/lib/docker
sudo blkid ${DEV}p${NUM}
# Configure automatic mounting
sudo vi /etc/fstab
# Add the following content to the end of the file (where UUID needs to be replaced with the actual one).
UUID=2efab5a5-8b74-41d2-8747-4c00fff8514a /var/lib/docker ext4 suid,dev,exec,auto,nouser,async,noatime,nofail 0 0
sudo mount /var/lib/docker

1.8.2 Install Docker Engine

sudo apt install curl ca-certificates uidmap
curl -fsSL https://get.docker.com | bash

Let’s verify:

sudo docker info

You can see that Docker is using the overlay2 storage driver:

$ docker info | grep storage -i
 Storage Driver: overlay2

1.8.3 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

1.8.4 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.