ARM embedded platform based on VirtualBox virtual machine-Ubuntu operating system

After spending two hours, I finally managed to set up this development platform. Now, I want to take a moment to summarize the process and try it out as a note for future reference. The platform consists of three main components: a PC, a VirtualBox virtual machine, and an ARM development board. All devices are connected to the same router and thus reside in the same network segment. This setup allows seamless communication between the PC, the virtual machine, and the development board. Additionally, they can all access the Internet during development. A key prerequisite is knowing the IP address of your ARM development board. The following is an analysis based on the build order outlined below. **First, install a virtual machine on the PC** Setting up a virtual machine on a PC is straightforward. I used Windows XP for this setup, but if you're using Windows 7, this guide can still serve as a useful reference. Begin by downloading the latest version of VirtualBox. This virtualization tool is known for its user-friendly interface, low memory usage, and simple network configuration. The current latest version is 4.2.4, but if you’re not downloading the latest one, you can check for updates via the Help menu. Once downloaded, you'll see the installation icon. Clicking it opens the Oracle VM VirtualBox setup wizard. Follow the steps: click "Next," accept the license agreement, then choose the installation directory. You can also opt to create shortcuts on the desktop. Once configured, proceed with the installation. The process may take some time as the virtual machine sets up the local network. After installation, a shortcut for VirtualBox will appear on your desktop. Right-click on "My Network Places" (or "Network" in newer systems) and select "Properties." You should now see an additional network connection created by VirtualBox—this is the virtual network card, which uses NAT mode by default. This means the virtual machine accesses the Internet through your physical network card, acting like a router. Now that the virtual machine is installed, the next step is to set up the Linux operating system. **Second, install Ubuntu within VirtualBox** I chose Ubuntu 9.0.4 for this setup, though any recent version should work. It’s recommended to download the virtual hard disk (VHD) format, as it simplifies the installation process. If you don’t have a pre-made VHD, you can create one manually. Once you’ve downloaded the file, open VirtualBox from the desktop shortcut. First, change the network mode from NAT to Bridge. While NAT is easier, it might cause networking issues. To switch to Bridge mode, go to Settings > Network > Adapter 1, select "Bridged Adapter," and choose your default network interface. Ensure the cable is connected and click OK. Next, install the Ubuntu system. **1. Click "New" to create a new virtual machine for Ubuntu.** **2. Set the memory allocation to around 384MB**, which is sufficient for basic use. **3. Specify the virtual hard disk image** you downloaded earlier (in .vdi format). **4. Complete the setup** by confirming the settings. **5. Start the virtual machine.** The login credentials are typically root and a default password, which you can find in the download package. Make sure to note them down or refer back to the documentation if needed. This setup enables a fully functional development environment where you can test and develop embedded applications using the ARM board, all while keeping everything interconnected and accessible over the same network.

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