OpenBSD Mirror Usage Guide
Introduction to OpenBSD
The OpenBSD project produces a FREE, multi-platform 4.4BSD-based UNIX-like operating system.
Manual Configuration
Edit the /etc/installurl file to contain the following:
https://mirrors.hust.edu.cn/openbsd/
Quick Setup
Run the following command:
echo 'https://mirrors.hust.edu.cn/openbsd/' | sudo tee /etc/installurl