Tutorial on restoring the system kernel and turning off automatic updates for Antminer G2 graphics card mining machine

The reason why the Antminer G2 lost computing power

The G2 Antminer GPU mining machine was not factory-installed with automatic updates turned off. The kernel of the operating system Ubuntu 16.04 was recently automatically upgraded from 4.10 to 4.13. The mining machine is not well adapted to the 4.13 kernel, and the computing power has dropped to around 160Mh/s, affecting the mining efficiency. The following tutorial can solve this problem, that is, restore the system kernel and turn off the system automatic update.

Note: The kernel is the most basic part of the operating system.

1. First, turn off updates

Set up according to Figures 1 and 2. If a password is required, the factory password is a.

Close Update 1

Close Update 2

2. Download the kernel file

Download the grub.rar compressed file from the network disk and replace the G2 /boot/grub/grub.cfg file. The download link is as follows

https://pan.baidu.com/s/1bpnouz9

Password: 6747   

3. Unzip to a USB drive

Unzip the downloaded "grub.rar" to a USB drive. Here, you can choose to unzip directly to a USB drive. Note the name of the USB drive. Here, the name of the USB drive is "upan".

4. Replace the kernel file

a. Insert the USB drive into the G2 server and open the terminal window according to the steps in the figure.

b. Enter ./grub.sh in the terminal window and then restart. If you need to enter a password, the factory password is a.

5. Restart the mining machine

Method 1: Type reboot in any terminal and press Enter

Method 2: Restart the graphical interface