Installation Preparations

This section describes the compatibility of the hardware and software and the related configurations and preparations required for the installation.

Installation Preparations

Obtaining the Installation Source

Before installation, obtain the openEuler Raspberry Pi image and its verification file.

Log in to the openEuler Repo website.
Choose openEuler-20.03-LTS-SP3.
Choose raspi_img. The download list is displayed.
Click openEuler-20.03-LTS-SP3-raspi-aarch64.img.xz to download the openEuler Raspberry Pi image to the local PC.
Click openEuler-20.03-LTS-SP3-raspi-aarch64.img.xz.sha256sum to download the verification file of the openEuler Raspberry Pi image to the local PC.

Verifying the Image Integrity

Overview

During package transmission, to prevent software packages from being incompletely downloaded due to network or storage device problems, you need to verify the integrity of the software packages after obtaining them. Only the software packages that pass the verification can be deployed.

Compare the verification value recorded in the verification file with the verification value that is manually calculated to determine whether the software package is complete. If the two values are the same, the downloaded file is complete. Otherwise, the downloaded file is incomplete and you need to obtain the software package again.

Prerequisites

Before verifying the integrity of the image file, ensure that the following files are available:

Image file: openEuler-20.03-LTS-SP3-raspi-aarch64.img.xz

Verification file: openEuler-20.03-LTS-SP3-raspi-aarch64.img.xz.sha256sum

Procedure

To verify the file integrity, perform the following procedure:

Obtain the verification value from the verification file. Run the following command:
```
$ cat openEuler-20.03-LTS-SP3-raspi-aarch64.img.xz.sha256sum
```
Calculate the SHA256 verification value of the file. Run the following command:
```
$ sha256sum openEuler-20.03-LTS-SP3-raspi-aarch64.img.xz
```
After the command is executed, the verification value is displayed.
Check whether the verification value calculated in step 1 is consistent with that calculated in step 2.
If the verification values are consistent, the downloaded file is not damaged. Otherwise, the downloaded file is incomplete and you need to obtain the file again.

Installation Requirements

If the openEuler operating system is installed in the Raspberry Pi environment, the Raspberry Pi environment must meet the hardware compatibility and minimum hardware specifications as follows.

Hardware Compatibility

Currently, the openEuler Raspberry Pi image supports the 3B, 3B+, and 4B versions.

Minimum Hardware Specifications

Table 1 lists the minimum hardware specifications for the openEuler Raspberry Pi image.

Table 1 Minimum hardware specifications

Component Name	Minimum Hardware Specifications	Description
Raspberry Pi version	Raspberry Pi 3B Raspberry Pi 3B+ Raspberry Pi 4B	-
Memory	≥ 2 GB (4 GB or higher recommended for better user experience)	-
Drive	8 GB or higher recommended for better user experience	-

Bug Catching

Buggy Content

Bug Description

Submit As Issue

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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.

Usability

● Incorrect or missing key steps;

● Missing prerequisites or precautions;

● Ambiguous figures, tables, or texts;

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

Correctness

● 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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