Install Debian on Milk-V Duo 256M

The Milk-V Duo 256M is a compact and affordable single-board computer (SBC) designed for embedded applications, IoT projects, and hobbyist use. Powered by the Sophon SG2002 SoC with a dual-core RISC-V CPU, this guide shows you how to install Debian and configure SSH access over Ethernet.

Steps

Download and Flash the Image
Download the image from the sophgo-sg200x-debian and flash it to a microSD card using Rufus.
Connect via USB
Connect the board to your computer via USB and open a terminal:
```
ssh debian@10.42.0.1
# Default password: rv
```

Enable DHCP on the Ethernet Port
First, check the network status:

nmcli device status
DEVICE  TYPE      STATE                   CONNECTION
end0    ethernet  connected               Wired connection 1
lo      loopback  connected (externally)  lo
usb0    ethernet  unmanaged               --
tunl0   iptunnel  unmanaged               --

Then, modify the connection to use DHCP:

sudo nmcli connection modify "Wired connection 1" ipv4.method auto

Connect via Ethernet
Plug in the Ethernet cable and restart the board. Check your router for the board's IP address, then SSH into the board:
```
ssh debian@192.168.88.21
# Default password: rv
```
Update the System
With internet access, run the following commands to update your system:
```
sudo apt update
sudo apt upgrade
```

Verify the Configuration
Use a tool like screenfetch to display system information:

screenfetch
         _,met$$$$$gg.           debian@duo256
      ,g$$$$$$$$$$$$$$$P.        OS: Debian
    ,g$$P""       """Y$$.".      Kernel: riscv64 Linux 5.10.4-20240527-2+
   ,$$P'              `$$$.      Uptime: 1h 7m
  ',$$P       ,ggs.     `$$b:    Packages: 581
  `d$$'     ,$P"'   .    $$$     Shell: bash 5.2.37
   $$P      d$'     ,    $$P     Disk: 3.2G / 120G (3%)
   $$:      $$.   -    ,d$$'     CPU: Unknown
   $$\;      Y$b._   _,d$P'      RAM: 71MiB / 235MiB
   Y$$.    `.`"Y$$$$P"'
   `$$b      "-.__
    `Y$$
     `Y$$.
       `$$b.
         `Y$$b.
            `"Y$b._
                `""""