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Versatile virtual machine product prototype development experiment purpose: learn how to compile through this experiment

How to compile and run an ARMLinux kernel 1. The purpose of the experiment is to learn how to compile an ARM version of the kernel image and run it on the QEMU virtual machine through this experiment. 2. Experimental steps In order to speed up the development process, ARM provides the VersatileExpress development platform. Customers can develop product prototypes based on the VersatileExpress platform. As an individual learner, there is no need to purchase the VersatileExpress development platform or other ARM development boards. You can use QEMU to simulate the development platform Linux and develop arm, which can also achieve the purpose of learning. (1) Design the tool to download the following code package.

Mar 29, 2024 am 08:16 AM

编译虚拟机lsp红帽linux

Play with the ever-changing Debian

1. Obtain and install the latest stable version of Debian, which is 9.3, codenamed stretch. Last updated on December 9, 2017. Visit https://www.debian.org/distrib/ to select a small installation image: less than 300M, and the installation process requires an Internet connection. 64-bitPCnetinstiso Use vmware to create a new virtual machine》Typical》Installation program CD image file》Browse the iso file》Determine the virtual machine name and storage location》Save as a single file》Complete and then start. Enter Debian's installation "Graphicalinstall" Select language "Chinese Simplified" to continue? Select Yes》Region China》Chinese》Configure network (virtual

Mar 28, 2024 pm 04:40 PM

linuxlinux系统红帽linux命令linux认证红帽linuxlinux教程linux视频自动重

Linux Kernel Design Revealed: In-Depth Techniques Exploration

As a senior Linux system engineer in the industry, I am familiar with the depth and breadth of complexities faced in the design process of the Linux kernel. This article will analyze and explore the unique charm and superb skills of Linux kernel design, especially its performance at multiple levels such as core architecture, scheduling rules, memory management, and file systems. Let us work together to reveal the secrets of this field and experience the in-depth thinking and exquisite design. What is the Linux kernel? First, you should understand the concept of Linux kernel. It is an important part of the operating system and is responsible for regulating hardware resource allocation and providing hardware access to user space software. As the core of the operating system, whether it is improving system performance or ensuring stability and security,

Mar 28, 2024 pm 03:30 PM

技巧探秘系统升级

Search your code using pss

Searching the code base is something developers do every day. From fixing bugs to learning new code, or seeing how to call an API, the ability to quickly navigate your code base is a big help. Fortunately, we have specialized tools for searching code. pss[1] is one of these tools, let's take a look at how to install and use it. What is pss? pss is a command line tool that helps you search in source code files. pss searches recursively in the directory tree. It can automatically determine which files need to be searched and which files do not need to be searched based on the file name and suffix, and will automatically skip directories that you do not want to search (such as .svn and .git) , and can also render the output in color to make it easier for people to read, and many other

Mar 28, 2024 pm 12:56 PM

linuxlinux系统红帽linux命令linux认证红帽linuxlinux教程linux视频

How to add a new disk on Linux system

Important: Please note that the purpose of this article is only to show you how to create a new partition, and does not cover partition expansion or other options. Configuring the new disk I use the fdisk tool to complete these configurations. I have added a 20GB hard drive and mounted it to the /data partition. fdisk is a command line tool used to display and manage hard disks and partitions on Linux systems. #fdisk-l This command will list the current partition and configuration. After viewing the Linux partition details and adding a 20GB hard drive, the output of fdisk-l is as follows. #fdisk-l View new partition details The newly added disk is displayed as /dev/xvdc. If we add a physical disk, based on the disk type it will show

Mar 28, 2024 am 11:56 AM

linuxlinux系统红帽linux命令linux认证红帽linuxlinux教程linux视频

Linux system migration guide: Embedded engineers teach you efficient operation and easy kernel configuration

Migrating the Linux system to the target device is a difficult problem for some developers. However, there is no need to worry. This article presents a simple and efficient operation guide for you by a senior embedded engineer. Please follow the detailed steps below: Step 1: Preparation First, make sure you have prepared the following materials: - A development board that is already running Linux - An available cross-compilation tool chain - Linux kernel source code Step 2: Configure the cross-compilation tool Before debugging the chain, be sure to configure and install the cross-compilation tool chain. This tool helps compile Linux kernel source code into executable binaries suitable for the target system. Please confirm the selected tool chain and development board

Mar 28, 2024 am 11:11 AM

linux系统迁移指南

Translation strategy: physical address of ARMLinux kernel after self-extraction

Hello, I am Lao Wu. I will continue to share Linus's article with you tomorrow. The article is a bit long, and it is all Linus' fault. My translation strategy is this: I will not translate word for word, I will change the expression form, I will simplify code analysis, and I will use English terminology where necessary. The level is limited, so it is recommended to read it in conjunction with the original text.

Mar 28, 2024 am 09:16 AM

自解压

zetcd solves how to remove the dependence of applications on ZooKeeper

Distributed systems usually rely on an arbitration system to work together. Generally, such systems use arbitration to ensure the accurate transmission of information to avoid split-brain. Such systems sacrifice versatility in exchange for ample design leeway, a practice that has clearly been exemplified by the proliferation of implementations. There are many such systems, such as: chubby, ZooKeeper, etcd and consul, etc. Although the concepts and protocols of these systems are different, they all provide similar key-value based distributed arbitration. As part of the plan to make etcd the most popular basic component of distributed systems, the etcd team has developed a new agent, zetcd, which can enable etcd clusters without any changes.

Mar 27, 2024 pm 10:50 PM

linuxlinux系统红帽linux命令linux认证红帽linuxlinux教程linux视频二次开

Fix linux console display garbled characters

Sometimes my exploration outputs some weird stuff on the screen. For example, once I accidentally used the cat command to view the contents of a binary file - cat/sbin/*. In this case you will no longer be able to access bash/ksh/zsh in the terminal. A lot of strange characters flood your terminal. These characters will hide what you type and the characters to be displayed, replacing them with some strange symbols. To get rid of these junk on the screen, you can use the following methods. This article will describe to you how to actually clear the terminal screen or reset the terminal in Linux/Unix-like systems. clear command The clear command will clear the screen content, and its scrollback buffer will also be cleared. (LCTT

Mar 27, 2024 pm 08:01 PM

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The key to operational stability issues – availability

Review is more based on subsequent summary and improvement. So how do we find and measure stability problems? Then we need to bring out today’s protagonist—availability. What is availability? Availability is an important indicator for evaluating business stability. It can discover periodic problems in the business through data quantification and establishing baselines, and thus improve service quality in a more targeted manner. So, what is availability? Availability refers to the proportion of the total available time for a functional individual within a specified time interval. In other words, it refers to the probability or proportion of the system being able to operate normally within a specified period of time. For our current Internet business, most of it is "real-time" and "online", that is, Real

Mar 27, 2024 pm 06:11 PM

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Use FTP server user liwu to try to log in. 8. Troubleshooting ideas

Contents 1. FTP service 1. Introduction to FTP contract FTP is a file transfer contract. It is a TCP-based contract and adopts the client/server model. Through the FTP contract, users can upload or download files on the FTP server. Use ports 20 and 21 of TCP: Port 20: used to build data connections and transfer file data. Port 21: used to build control connections. Disadvantages: Data cannot be automatically synchronized and needs to be automatically synchronized. 2. FTP service principle FTP service is divided into two types: linux adds ftp service linux operating system version, active connection and passive connection. Active connection principle: Passive connection principle: 3. Configuration file path service configuration file: /etc/vsftpd/

Mar 27, 2024 am 10:36 AM

登录ftp服务器linux操作系统系统版本

sudoapt-getinstallcscope usage: -Rb

/**********************************************************************Author:Samson*Date:07/02/2015*Testplatform:*gcc(Ubuntu4.8.2-19ubuntu1)4.8.2*GNUbash,4.3.11(1)-release(x86_64-pc-linux-gnu)*Nginxversion:*Nginx1.6.2*Nginx1.8.0*********************

Mar 26, 2024 pm 12:20 PM

rblinux操作系统系统安装

Linux kernel file decryption: exploring the design secrets of the operating system

As the cornerstone of open source operating systems, the Linux kernel has always attracted a lot of attention. This is mainly due to its strong and stable characteristics. This article will explore the uniqueness of Linux kernel files and their key role in system operation from many aspects, and reveal the mystery of the internal operating pipeline of the operating system to readers. 1. Overview of the kernel file The kernel file is mainly compiled in C language and contains the key codes and data structures of the operating system. These files assume key responsibilities such as hardware resource control, process scheduling, and memory management at the kernel level. A deeper understanding of this set of files can help you more fully grasp the design concept of the entire operating system. 2. Classification of kernel files Core files can be classified into device driver modules and system call interfaces according to their uses.

Mar 26, 2024 pm 12:06 PM

Comparison of Linux distribution software: Scapy vs Hping3 vs Nemesis

As an expert in the field of network security, I know the importance of outsourcing software in network environment simulation and traffic testing. This article aims to conduct an in-depth evaluation and comparison of commonly used Linux package distribution software, so that users can choose the best package distribution tool according to their own needs. 1. Scapy: A flexible and versatile network programming tool, Scapy is a Python library with excellent functions and high flexibility, providing comprehensive API services for the construction and analysis of various network protocols. It has the ability to send and receive customized network data packets, and can also perform multiple operations such as traffic analysis and spoofing attacks. Diverse protocol compatibility and convenient programming mode make it the first choice tool for experts and researchers in the field of network security. 2.Hping3: powerful network

Mar 26, 2024 am 10:46 AM

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