Linux Cloud Automation Operations Basics (PXE automated installation deployment)

Need packages:
System-config-kickstart # #自动应答脚本制作工具
Syslinux # #获得pxelinux. 0 File Installation package
DHCP # #分配ip给客户机的服务
Tftp-server # #提供tftp协议的服务
HTTPD # #安装源共享服务

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Automatic installation principle:

1. The client starts from its own PXE network card and requests IP from the DHCP server in the network

2.DHCP server returned to client IP

3. The client requests the files from the TFTP server in the network

4. The client obtains the bootstrap file after the execution boot file completes the boot

5. Then read the configuration file and load the kernel and file system via the TFTP server

6. Enter the installation screen, which can be installed by selecting HTTP mode

From here, we're not hard to get. 4 elements required to implement a PXE network installation

1. The client's network card must be a PXE NIC

2. The network must have HTTP,DHCP and TFTP server, of course, the two servers can be the same physical host

3. The installation must support the network installation.

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1 mount the rhel7.2 image under ISO to/var/www/html/rhel7.2

2 Configuring/etc/yum.repos.d/rhel7.2.repo

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3. Configure the System-config-kickstart Auto-answer scripting tool

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4vim/var/www/html/ks.cfg Configuring the Auto Answer Script package

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5. After configuring the Ks.cfg file, enter 172.25.254.28/ks.cfg in the browser and the following interface indicates the HTTP shared service succeeded

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6. . Configuring TFTP The service prepares the file under Tftpboot and configures the boot kernel program

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7. Experimental testing

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This article is from the "13122425" blog, please be sure to keep this source http://13132425.blog.51cto.com/13122425/1952803

Linux Cloud Automation Operations Basics (PXE automated installation deployment)