CentOS 7.3 Installation Guide

CentOS 7.3 Installation Guide
GuideCentOS 7, the latest version of the source code based on Red Hat Enterprise Edition, released CentOS Linux 7 (December) in 1611, including many bug fixes and new package updates, such as Samba, Squid, libreoffice, SELinux, systemd, and other software. It also supports the seventh-generation Intel Core i3, i5, and i7 processors. This guide will show you how to install CentOS 7.3 using a dvd iso image on a UEFI machine.

Prompt to correctly install CentOS 7.3 On the UEFI machine, first press the key (F2
F11 or F12, depending on your motherboard type) enter the UEFI settings of the motherboard and make sure that QuickBoot/FastBoot and Secure Boot are disabled.1. After you download the image from the above link, use Rufus to burn it to a DVD or create a boot UEFI compatible USB disk.

Place the USB/DVD in the drive connected to the motherboard, restart the computer, and use a specific function key (F12, F10 depends on the motherboard type) to enable BIOS/UEFI from the DVD/USB.

After the ISO image is started, the following screen is displayed on your machine. Select "Install CentOS 7" in the menu and press enter to continue.

CentOS 7.3 boot menu

2. After the image is loaded to the memory, a welcome page is displayed. Select the language you are using during installation and click "Continue.

Select CentOS 7.3 installation Language

3. Click "Date and Time" on the next page and select your geographic location from the map. Confirm that the date and time are correctly configured and click "Finish Done" to return to the main installation page.

CentOS 7.3 Installation Summary

Select Date and Time

4. Click the "Keyboard" menu to go to the Keyboard layout page. Select or add a keyboard layout and click "Finish Done" to continue.

Select keyboard layout

5. Next, add or configure a language for your system and click "Finish Done" to go to the next step.

Select language support

6. In this step, you can set your system "Security Policy" by selecting the Security configuration in the list ".

Click "select Configuration" to select the desired security configuration and click "Apply security policy" to go to "On. Click "Finish Done" to continue the installation process.

Enable CentOS 7.3 Security Policy

7. In the next step, you can click the "Software Selection" button to configure your basic machine environment.

The list on the left shows how to install the desktop environment (Gnome, KDE Plasma, or creative workstation) or install a server environment (Web server, computing node, virtualized host, infrastructure server, or graphic interface server or file and print server) or perform a minimal installation.

To customize your system later, click "Finish Done" to minimize installation and add a compatible library.

CentOS 7.3 software selection

For the complete Gnome or KDE Desktop environment, use the following guidelines.

Gnome desktop software selection

KDE Desktop software selection

8. If you want to install a graphical interface on the Server, select "Server with GUI" in the left column, in the right column, select the appropriate additional software based on the services you need to provide to the client.

You can choose a wide range of services, from backup, DNS or e-mail services to file storage services, FTP, HA, or monitoring tools. Select the most important service for your network.

Select a server with GUI

9. If you do not use a specific network protocol such as HTTP, HTTPS, FTP, or NFS, the installation source remains the default value, click "Installation location Installation Destination" to create a disk partition.

On the "select Device selection" Page, make sure that you have selected a local disk. Similarly, make sure that "automatic configuration partition automatic configure partitioning" is selected in "Other Storage Options ".

This option ensures that your disk is properly partitioned Based on the disk space and Linux File System hierarchy. It automatically creates/(root),/home, and swap partitions for you. Click "Finish Done" to apply the disk partitioning scheme and return to the main installation page.

Important: If you want to create a custom partition and a custom partition size, you can select the "I want to configure the partition I will configure partitioning" option to create a custom partition.

Install CentOS 7.3

10. Next, if you want to release the system memory, click the KDUMP option and disable it. Click "Finish Done" and return to the main installation page.

Select Kdump

11. Set your host name and enable the network service in the next step. Click "Network and Host Name Network & Hostname" and enter your FQDN (Fully Qualified Domain Name) in the host name. If you have a DHCP server in the LAN, switch the Ethernet button from OFF to ON to activate the network interface.

Set network and Host Name

12. To statically Configure your network interface, click "Configure", manually add IP settings as shown in, and click "Save" to apply changes. Click "Finish Done" to return to the main installation menu.

Configure the network and IP address

13. Check all the configurations so far. If everything is okay, click "Start Installation Begin Installation" to start Installation.

Start CentOS 7.3 Installation Wizard

14. After the installation starts, a new setting user interface is displayed. First, click "root PASSWORD" and add a strong PASSWORD.

The root Account is the highest administrative account password for each Linux system and has all permissions. Click "complete" and then return to the user settings page.

Select root Password

Set root Password

15. running the system with the root account is very insecure and dangerous. Therefore, we recommend that you click "create User Creation" to create a new system account to Execute daily system tasks.

Add a new user and select the following two options to grant the User root permission and manually enter the password each time you log on to the system.

When you finish the last item, click "Finish Done" and wait for the installation to complete.

Create a user account

16. A few minutes later, the installation program will report that CentOS has been successfully installed on your machine. To use the system, you only need to remove the installation media and restart the machine.

CentOS 7.3 installation completed

17. After the restart, log on to the system using the user created in the installation, and run the following command with the root permission to execute system updates.

$ sudo yum update

Update CentOS 7.3

Update CentOS 7.3

Select yes for all yum manager problems, and restart the computer again (use sudo init 6) to apply the new kernel upgrade.

$ sudo init 6

That's it! Enjoy the latest CentOS 7.3 in your machine.

From: https://linux.cn/article-8048-1.html

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