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BIOS installation of Arch Linux really bothers me QAQ The following article will introduce the installation process in detail based on the Wiki of Arch Linux I strongly don't recommend novices to toss around with Arch Linux. If you are a novice, I still recommend you to install a Linux based on Arch Linux Manjaro system 1. Verify startup ...

What is the namespace of linux About the linux namespace, Official documents Here's what it says: A namespace wraps a global system resource in an abstraction that makes it appear to the processes within the namespace that they have their own isolated instance of the global resource. Changes to the global resource are visible to other proc ...

Several installation methods of Qt under ubuntu This article introduces a variety of installation methods, including apt package management system, binary package, source code, and online installation of Qt SDK and Qt Creator. apt Execute the following commands in sequence # Open the terminal, right click on the desktop - > open term ...

1, jdk installation Download jdk: Official address: https://www.oracle.com/java/technologies/javase-downloads.html Unzip the downloaded package: #Use command: tar -zxvf jdk-8u291-linux-x64.tar.gz #To facilitate management after decompression: mv jdk-8u291-linux-x64/ /usr/core/jdk #I like to use core as a common (core) and immovable dire ...

1. The database data is damaged due to misoperation of drop statement. Please write down the recovery idea and actual general steps? #The recovery of all data depends on backup. If there is no backup, it cannot be recovered In case of recovery after misoperation, the incremental recovery method shall be used for recovery. The specific steps ...

[linux] process control 01. Process number correlation function getpid function pid_t getpid(void); Function: Get this process number( PID) Parameters: nothing Return value: This process number getppid function pid_t getppid(void); Function: Gets the parent process number of the process calling this function( PPID) Parame ...

a purpose The purpose of this paper is to solve the problem of directory difference between two servers, that is, you can write or delete any content in the specified directory of A and B servers, and it will be synchronized to another server, that is, to achieve high availability of file storage and reading. environment Server information ...

Preface Change your daily FreeBSD for a variety of reasons to Arch Linux's recent attempt to make a SalifishOS adapter for your idle mobile phone, before verifying the availability of Android Base. This mobile phone has CM13.0 is officially supported, but compilation on Arch Linux is often wrong, so this article Find problems Error Found Ha ...

Block device driver Block device driver is one of the three driving types of Linux. Block device driver is much more complex than character device driver. Different types of storage devices correspond to different driving subsystems. The block device driver framework and its application are introduced below 1, Block device introduction Block ...

Environment centos7 kafka cluster and zookeeper cluster do not have user password by default. 1. Configure zookeeper cluster SASL All nodes of zookeeper are peer-to-peer, but the roles of each node may be different. The configuration of all nodes in the following steps is the same. 1. Add SASL support for zookeeper in the configuration file ...