Controlling MiniPC Bootloader using a Laptop: A Beelink BT3 Guide

Controlling Mini PC Bootloader using Laptop: Beelink BT3 Guide

In this article, we will discuss how to control the bootloader of a Beelink BT3 Mini PC using a laptop. The bootloader is a crucial part of the system that initializes the hardware and loads the operating system. By controlling the bootloader, you can troubleshoot issues, recover from failed system updates, or even install a different operating system.

What is a Bootloader?

A bootloader is a small program that runs before the operating system. It initializes the hardware, loads the operating system kernel, and passes control to it. The bootloader also provides a way to select which operating system to boot, in case the system has multiple operating systems installed.

Accessing the Beelink BT3 Bootloader

To access the Beelink BT3 bootloader, follow these steps:

1. Shut down the Mini PC.
2. Press and hold the "F7" key while powering on the Mini PC.
3. Release the "F7" key when the boot menu appears.

The bootloader menu will appear, allowing you to select the boot device or enter the UEFI settings.

Controlling the Bootloader using a Laptop

To control the bootloader using a laptop, follow these steps:

1. Connect the Mini PC to the laptop using a USB-to-serial adapter.
2. Open a terminal program on the laptop, such as PuTTY or minicom.
3. Configure the terminal program to use the correct serial port and baud rate.
4. Press the "Enter" key in the terminal program to display the bootloader prompt.
5. Enter the desired bootloader commands, such as selecting the boot device or changing the boot order.

Bootloader Commands

The following is a list of common bootloader commands:

• ls: List the available boot devices.
• select [device]: Select the boot device.
• boot: Boot the selected device.
• exit: Exit the bootloader and continue booting the default operating system.

UEFI Settings

The UEFI settings allow you to configure the system settings, such as the boot order, time and date, and security settings. To access the UEFI settings, follow these steps:

1. Access the bootloader as described above.
2. Select the "Setup" or "Enter Setup" option.
3. Use the arrow keys to navigate the UEFI settings and make the desired changes.
4. Save the changes and exit the UEFI settings.

In this article, we have discussed how to control the bootloader of a Beelink BT3 Mini PC using a laptop. By accessing the bootloader, you can troubleshoot issues, recover from failed system updates, or install a different operating system. The UEFI settings also allow you to configure the system settings, such as the boot order and security settings.

References

• Beelink BT3 User Manual
• UEFI Specification
• Serial Console HOWTO

Note: This article is for informational purposes only. The author is not responsible for any damage or data loss that may occur as a result of following the instructions in this article.