RedHat Linux 7.2 Introduction and Installation

1.RedHat Linux7.2 Introduction

Red Hat Company officially released the Enterprise Linux 7 version on June 11, 2014, which has been made available in bare servers, virtual machines, IaaS, PAAs, etc.

Strengthen, rely on, and more powerful data center environments to meet a variety of business requirements. RHEL7 provides a cohesive, unified infrastructure architecture and the latest service environment for the enterprise. Includes Linux containers, big Data, and hybrid cloud platforms across physical systems, virtual machines, and the cloud.

2.RedHat Linux7 Interesting updates:

① significantly improves Docker compatibility-----Docker is an open-source application container engine that allows developers to package their apps

As well as relying on packages into a portable container, and then publishing it to any popular Linux machine, it can also be virtualized. Containers are completely sandbox-aware and do not have any interfaces with each other.

The ② system file system is changed from EXT4 (fourth generation extended file system) to XFS (High Performance Log file system).

Further simplification of ③ system management

④ new version of kernel 3.10 provides more file system support

3.RedHat Linux 7.2 System Installation

RHEL7 Architecture support: 64-bit AMD, 64-bit Intel, IBM POWER, IBM Systemz

RHEL 7 Installation Interface: a new Installation interface, one-stop configuration, a new kickstart structure, a new partitioning tool, support for more than 2TB hard disk as a system boot disk, installation configuration steps change greatly (easy).

4.RedHat Linux 7.2 Installation Steps

Installation recommendation: Memory must be at least 768M, too low to install; hard drive capacity recommended not to 10g;cpu the core number by default

4.1 Create a virtual machine, RHEL 7 image after the virtual machine is created and then imported, so select "Install the operating system later"

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4.2 Operating system Select "Linux", version select "RedHat Enterprise Linux 7 64-bit", if the VMware version is low, you can also use Rhel 6 64-bit.

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4.3 Name the virtual machine and select the virtual machine installation location

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4.4 Processor Selection According to the actual needs of the choice, by default.

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4.5 Select the memory of the virtual machine and install Rhel 7 memory at least 768M.

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4.6 Select the network type: Choose According to your own needs.

Bridge Mode (VMNET0): directly with the physical network card bridge, and the IP address and physical network card in the same network segment, configure the gateway, DNS will be able to access the Internet.

nat Mode (VMNET8): use address translation, virtual machine IP address and physical machine card address NAT translation, as long as the physical function of the Internet, virtual machine can also be internet.

host mode only (VMNET1): can only communicate with the physical machine, not the Internet.

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4.7 Default.

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4.8 Default

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4.9 Select disk "Create new virtual Disk"

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4.10 Select the disk capacity, we recommend not less than 8G, by default.

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4.11 Next by default. and the virtual machine creation is complete.

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4.12 Select Edit virtual machine settings to set up the virtual machine further.

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4.13 Loading Rhel 7 images

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4.14 View the mode selection of the network settings.

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4.15 When the configuration is complete, start the virtual machine. Enter the interface

Install Red Hat Enterprise Linux 7.2----installation of Linux7.2

Test this media & install Red Hat Enterprise Linux 7.2----Testing the current installation media and installing Red Hat Enterprise Edition Linux7.2

Troubleshooting----troubleshooting, select this option when the system encounters a problem

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4.15-1 TROUBLESHOOTINGF Content:

Install Red Hat Enterprise Linux 7.2 in basic graphics mod ---Use the basic graphical interface for the installation of Ruby Linux 7.2

Rescue a Red Hat Enterprise Linux system-----Rescue Red Hat Corporate Linux

run a memory test----the

boot from local drive-----booting from native device

Return to main menu----

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4.16 Boot load rhel 7.2 Mirror 650) this.width=650; "Src=" http://s2.51cto.com/wyfs02/M01/7F/98/ Wkiom1cjxwujnycxaaa7e-kzzim562.png "style=" Float:none; "title=" 21.png "alt=" wkiom1cjxwujnycxaaa7e-kzzim562.png "/ >

4.17 loading successful, installation preparation process

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4.18 Select the language in the installation process. This selection only works during the installation process and does not affect the language environment of the system.

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4.19 One-stop installation interface, with "LOCALIZATION, local", "security, Safety", "software, software" and other installation projects.

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4.19-1 "Date & Time" setting time zones and times

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4.19-2 "LANGUAGE support", select the installation system language

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4.19-3 Security Policy, you can simply close it without requiring it.

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4.19-4 "Installation Source" installation source, this is the loaded Rhel 7 image, it is recommended to click "Verify" to verify, to avoid the mirror is bad. To tick all options in "Additional repositories".

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4.19-5 "Software SELECTION" Software selection, select the installed software.

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4.19-6 "Installation DESTINATION" installation description, which is the location to install the Linux system. To pull down here, click "I will configure partitioning" to configure the partition immediately.

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4.19-7 is created in LVM, and the main Linux partition is the three partitions, the/boot partition, and the swap partition.

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4.19-8 Creating a Partition

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4.19-9 created three major partitions.

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4.19-10 Create is ready to start creating. ---to start partitioning on disk

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4.19-11 "KDUMP" can not be configured. ----Anti-crash mechanism

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4.19-12 Configuring the network, configuring the IP address

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4.19-13 Configuring the network host name

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4.20 Install after configuration is complete.

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4.21 during the installation process, the root user is created with a password and can also be added to the user.

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4.21-1 Configure the root user password.

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After the 4.21-2 configuration is complete, there is no yellow exclamation point!

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4.22 reboot after installation is complete.

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4.23 Restart after the simple selection, language selection, etc. can be used.

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This article is from the Linux learning blog, so be sure to keep this source http://457308137.blog.51cto.com/8952483/1769133

RedHat Linux 7.2 Introduction and Installation