DDE Installation


DDE is a powerful desktop environment developed by UnionTech. It contains dozens of self-developed desktop applications.


  1. Download the openEuler ISO file and install the OS.
  2. Update the software source.
sudo dnf update
  1. Install DDE.
sudo dnf install dde
  1. Set the system to start with the graphical interface.
sudo systemctl set-default graphical.target
  1. Reboot the system.
sudo reboot
  1. After the reboot is complete, use the user created during the installation process or the openeuler user to log in to the desktop.


DDE does not allow login as the root user. DDE has a built-in openeuler user whose password is openeuler.

Now you can use DDE.

Bug Catching

Buggy Content

Bug Description

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Bug Type
Specifications and Common Mistakes

● Misspellings or punctuation mistakes;

● Incorrect links, empty cells, or wrong formats;

● Chinese characters in English context;

● Minor inconsistencies between the UI and descriptions;

● Low writing fluency that does not affect understanding;

● Incorrect version numbers, including software package names and version numbers on the UI.


● Incorrect or missing key steps;

● Missing prerequisites or precautions;

● Ambiguous figures, tables, or texts;

● Unclear logic, such as missing classifications, items, and steps.


● Technical principles, function descriptions, or specifications inconsistent with those of the software;

● Incorrect schematic or architecture diagrams;

● Incorrect commands or command parameters;

● Incorrect code;

● Commands inconsistent with the functions;

● Wrong screenshots.

Risk Warnings

● Lack of risk warnings for operations that may damage the system or important data.

Content Compliance

● Contents that may violate applicable laws and regulations or geo-cultural context-sensitive words and expressions;

● Copyright infringement.

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