CentOS installation apidoc and CentOS installation black screen

php editor Xinyi introduces to you how to install apidoc in CentOS and solve the black screen problem in CentOS installation. In CentOS systems, apidoc is a commonly used API document generation tool through which standardized API documents can be easily generated. The CentOS installation black screen problem refers to the situation where a black screen appears when installing the CentOS system and the installation interface cannot be entered. This article will introduce how to install apidoc in CentOS system and the specific method to solve the black screen problem during CentOS installation to help you successfully complete the related operations.

#apidoc is a tool for generating API documentation. It can automatically generate documentation pages based on code comments. Installing apidoc on CentOS is very simple. You only need to perform the following steps:

1. Update system packages:

```

sudo yum update

2. Install Node.js:

sudo yum install nodejs

3. Install apidoc:

sudo npm install apidoc -g

4. Verify whether apidoc is installed successfully:

apidoc -v

If the version number of apidoc is displayed, the installation is successful. Now you can use apidoc to generate API documents.

During the installation process of CentOS, sometimes you will encounter a black screen problem, that is, the screen is completely black and you cannot operate. This may be caused by a graphics card driver problem or a monitor compatibility problem. Here are some solutions to the black screen problem Method:

1. Check the graphics card driver:

Make sure your graphics card driver is the latest, you can try to select "Basic Graphics Mode" during the installation process to avoid the black screen problem, if you still If you encounter problems, you can try updating the graphics card driver or using another compatible graphics card.

2. Check monitor compatibility:

Some monitors may be incompatible with CentOS, causing black screen problems. You can try to connect other monitors, or select other resolutions and refresh during the installation process. Rate.

3. Use safe mode:

You can try to use CentOS’s safe mode for installation. Safe mode will disable some functions and drivers that may cause a black screen.

4. Check hardware problems:

Sometimes the black screen problem may be caused by hardware failure. Check whether your hardware is working properly, such as checking the power supply, graphics card, memory, etc.

If you still cannot solve the black screen problem, it is recommended that you seek help from the CentOS official forum or related communities.

File permissions in LINUX are a very important concept. Each file and directory has a set of permissions to control access to it. Common permissions include read, write and execute permissions, respectively. r, w, and x mean that you can use the command chmod to change the permissions of the file, for example:

```

chmod .sh file executable permissions.

You can also use the commands chown and chgrp to change the owner and group of the file, for example:

chown user1 file.txt

This will change the file.txt file The owner is changed to user1.

LINUX's file permission system is very flexible and can be customized and adjusted as needed to ensure the security and accessibility of files and directories.

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