Popular Chinese APT Mirrors

APT rpeositories are published in two primary architectures:

• x86_64 (amd64) – use ubuntu
• aarch64 (arm64) – use ubuntu-ports

Run uname -m to determine your machine’s architecture.

Configuring the Mirror

Method 1: GUI (Ubuntu Desktop)

1. Open Settings → Software & Updates.
2. In the Download from drop-down, choose Other…
3. Click Select Best Server. The tool will ping mirrors and pick the fastest one (takes ~5 min).
4. If the auto-selection fails, manually enter any URL from the table above.
5. Close the dialog and allow the cache to reload.

Method 2: Command Line (All Flavors)

1. Back up the original list: ``` sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak

2. Open the file in your preferred editor: ``` sudo nano /etc/apt/sources.list

3. Replace every occurrence of http://archive.ubuntu.com/ubuntu/ (or ports for ARM) with your chosen mirror, e.g.: ``` https://mirrors.aliyun.com/ubuntu/

4. Ensure both binary and source entries exist (optional but recomemnded): ```

   Binary packages

   deb https://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse

   Corresponding source packages (uncomment if needed)

   deb-src https://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse

   deb-src https://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse

   deb-src https://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse

   deb-src https://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse

5. Save the file and refresh the package index: ``` sudo apt update

After the update finishes, your system will download packages from the new mirror.