Introduction to Linux systems and installation of Linux systems

first, write in frontThis article provides a brief overview of the Linux system and a brief introduction to the installation of the Linux system. Ii. Completion of the objectives
1, the basic concept of Linux operating system　　 2, installation of Linux system
iii. Basic Concepts

　　1, what is the operating system?

The operating system is also a set of programs that focus on managing all of the computer's activities and driving all the hardware in the system.2. What is Linux?

Linux is a free-to-use and free-to-propagate Unix-like operating system, a POSIX-and Unix-based multiuser, multitasking, multi-threaded and multi-CPU operating system, more.

3. What is free software?

　　　　Free software is a software that can be freely used, copied, researched, modified and distributed without restriction. can buy and sell. This is not limited to the most important nature of free software, more.

4. What is Linux distribution? A Linux distribution is an operating system that is based on the Linux kernel and integrates some software, while the operating system is also equipped with a package management system. Depending on the package management system, distribution can be divided into: system using RPM, including Red Hat, Fedrola,suse, etc., using dpkg debian,ubuntu,b2d, etc.5. What is MBR? MBR (Master boot Record) master boot partition: Where the bootloader can be installed. MBR is important, because the system will be active to read the contents of this chunk when booting, so the system will know where your program is placed and how to boot. Iv. steps of Implementation 　　The Linux distribution we install here is CentOS, please visit the CentOS website (https://www.centos.org/) to download the corresponding version. You can then try the installation on the virtual device VBox, if you are familiar with the installation steps can be installed directly on the actual host. There are a number of ways to install CentOS, where a USB flash drive is used to install, the basic principle is to first CentOS image through Urltraiso (free green version http://www.cr173.com/soft/15480. HTML) burn to the USB flash drive to make the USB drive boot disk, and then use the boot disk to install. RELATED LINKS (http://www.jb51.net/os/151881.html). Can be used vbox with the U disk Startup disk for simulation installation contact, RELATED links: http://jingyan.baidu.com/article/49711c612e2850fa451b7c7a.html v. Review and summary
This section describes the installation of CentOS for a release version of Linux and Combs some of the basic concepts of Linux. Vi. Problems encounteredThere are two points to be aware of when installing CentOS (all of the following are from the VBox Virtual appliance installation): 1, when partitioning the disk, be careful to partition the disk of the installed host instead of the USB drive (the disk that the USB drive and the host comes in during the installation), Partition should pay attention to cancel off the USB drive check, just tick the machine's disk drive 2, install the boot program must be installed on the host disk, and do not accidentally installed on the USB stick, otherwise the host opened the opportunity to find the operating system (please read carefully http://www.jb51.net /os/151881.html, perform the installation operation against its instructions).

Introduction to Linux systems and installation of Linux systems