Install CentOS 7 on VMware14 Graphic Tutorial

Introduction to CentOS

CentOS is an enterprise-class Linux distribution based on freely available source code provided by Red Hat Linux. Each version of CentOS will be supported for ten years (via security updates). A new version of CentOS is released approximately every two years, and each version of CentOS is updated regularly (approximately every six months) to support new hardware. In this way, a safe, low-maintenance, stable, highly predictable, and highly repeatable Linux environment is established. CentOS is the abbreviation of Community Enterprise Operating System.

Major Changes in CentOS 7

Compared with Centos6, the biggest change in the basic user operation process in Centos7 is that the operation-level management program and firewall have undergone thorough changes. The Centos7 version uses firewall to replace the Iptables firewall in the Centos6 version. Firewall is a major feature of Centos7. It has two biggest advantages: the first is that it supports dynamic updates without restarting the service; the second is the addition of the "zone" concept of the firewall. The firewall is managed by a graphical interface and a tool interface. The character interface management tool is firewall-cmd.

Summary of new features of CentOS 7

● Only supports 64-bit CPU.
● Kernel version 3.10 supports SwAP memory compression, which can significantly reduce IVO and improve performance, and uses NUMA (uniform memory access) for scheduling and memory allocation.
● Make XFS the default file system ● Make a lot of improvements to NetworkManager, introduce team as the bundling method for link aggregation, and add a new network management interface amelio.
● Use a dynamic firewall.
● Use systemtm to call service scripts ● Provides a lot of improvements to KVM (kernel-based virtualization), such as using virtio-blk-data.
pane improves fast O performance (technical preview), supports PCI bridging, QEMU sandbox, and multiple queues
NIC, USB3.0 (technology preview), etc.
● Introduce Linux container Docker.
● Compilation tool chain includes GCC4.8.x, gibc2.17, and GDB7.6.1.
● Includes Ruby2.0.0, Python2.7.5, Java7 and other programming languages ​​● Includes Apache2.4, MariaDB5.5, PostgreSQL9,2 and so on.
● Systemd replaced SysV in systems and services
● Introduced the Pacemaker cluster manager and replaced the load balancing program Piranha with keepalived and HAProxy
● In addition, the installer Anaconda has been redesigned and enhanced to use the boot loader
GRUB 2.

Experimental environment

Virtual Machine: VMware 14
Image file: CentOS-7-x86_64-DVD-1708.ISO
Disk space: 40G
Memory size: 2G
swap (virtual memory): 4G
CD file link: Link: https://pan.baidu.com/s/1AJPK2sCSegETvFbsfgOqCA Extraction code: y23e
Tips: Unzip the software package before use!
CentOS 7 official website: https://www.centos.org/

Purpose

Successfully installed centos 7 system on the virtual machine

Experimental step 1: New virtual machine wizard

1. Click "Create a new virtual machine" on the home page

2. Click "Customize", then click "Next"

3. Click "Install the operating system later", and then click "Next"

4. Select the operating system and click "Next"

5. Select the installation path and click "Next"

6. Modify the memory size and click "Next"

7. Select the network mode and click "Next"

8. Modify the disk size and click "Next"

9. Put the custom disk file into the directory, and then click "Next"

10. Custom Hardware

11. Remove the sound card and printer

12. Use the image file, then click "Close", then click "Finish"

2. Install centos 7 system

1. Enter the graphical installation centos 7 system

2. Select Chinese language and click "Continue"

3. Enter the software installation, select desktop installation, and click "Finish"

4. Enter the installation location and partition manually.

5. Enter kdump, do not enable the kdump backup mechanism, and then click "Finish"

6. Start the installation and set the root password, then click "Restart"

7. Initial Configuration

8. Change the time zone

9. Create a user and password

10. Complete the settings and enter the system interface

11. Enter the terminal and edit the network card information

12. Now all installation steps have been completed and you can use the CentOS 7 system!

Summarize

● During installation, you must pay special attention to installation conditions such as memory, disk space, and swap.
● The pictures showing the default option operations are omitted in the operation steps.
● VMware Workstation 14 can be used to create and run multiple virtual machines.
● CentoS 7 provides a graphical system installation method, and you can select a variety of languages ​​used when installing the system for installation.
● In the virtual machine, you can switch to the host machine by pressing the Cml+Alt key combination.
● After installing the Centos 7 system, you can take a snapshot. The snapshot function makes the virtual machine easier to maintain.
● VMware 14 provides network working modes such as bridge mode and custom mode.