Shulou(Shulou.com)06/03 Report--

1. Experimental environment

Two VMware Workstation virtual machines for centos7 are installed, one is a PXE server and the other is bare hardware, which is used to validate PXE services.

Virtual machines with PXE installed need to add a network card.

Add a network card, one for networking using the yum installation package, and one in host-only mode so that it can communicate within the local area network.

Configure the second network card

Enter: cd / etc/sysconfig/network-scripts/ to enter this directory

Cp-p ifcfg-ens33 ifcfg-ens37 / / copy the ens33 Nic configuration file and rename it to ens37

Vim ifcfg-ens37 / / modify the configuration of ens37 network card

Dhcp is static

Two ens33 are ens37

Delete UUID Lin

Enter:

IPADDR=192.168.100.100 / / IP address

NETMASK=255.255.255.0 / / subnet mask

GATEWAY=192.168.100.1 / / Gateway

: wq / / Save exit

Restart the network configuration

Service network restart / / restart network configuration

Ifconfig / / View configuration results

Install and configure the DHCP service

Yum install dhcp-y / / install the dhcp service

Cp/ usr/share/doc/dhcp-4.2.5/dhcpd.conf.example / etc/dhcp/dhcpd.conf / / copy configuration file

Yes / / confirm overwrite

Vim / etc/dhcp/dhcpd.conf / / modify the main configuration file

Configure the following:

Subnet 192.168.100.100 netmask 255.255.255.0 {

Range 192.168.100.20 192.168.100.30; / / address pool

Option routers 192.168.100.100; / / Gateway, point to yourself here

Option domain-name-servers 114.114.114.114; / / assign DNS address

Next-server 192.168.100.100; / / points to the TFTP server

Filename "pxelinux.0"; / / points to the boot file location

}

: wq / / Save and exit

Install bootstrapper files and tftp services

Yum install syslinux-y / / install bootstrapper file

Yum install tftp-server-y / / install the tftpd service

Rpm-ql tftp-server / / View the site path

/ etc/xinetd.d/tftp / / configuration file

/ var/lib/tftpboot / / site

Cp / usr / share/syslinux/pxelinux.0 / var/lib/tftpboot / / put the bootstrap pxelinux.0 into the tftpd site

Ls / / View details

Vim / etc/xinetd.d/tftp / / Edit tftp configuration

Modify disable = no / / enable the service

: wq / / Save exit

Mount the image to the FTP site

Yum install vsftpd-y / / install this service

Rpm-ql vsftpd / / where / var/ftp is the site path

Cd / var/ftp/ enter the site path

Mkdir centos7 / / create a file

Ls / / View the creation result

Mount / dev/sr0 / var/ftp/centos7/ Mount the CD image file to the FTP site

Df-hT / / View the mount status

Cp initrd.img vmlinuz / var/lib/tftpboot/ copy the initialization image file to the tftp service directory

Ls / var/lib/tftpboot/ View replication results

Cd / var/lib/tftpboot/ enter the tftp service directory

Mkdir pxelinux.cfg / / create this file and must be this name

Ls / / View directory details

Cd pxelinux.cfg/ enter the directory

Vim default / / create and edit default file

Edit the following:

Systemctl stop firewalld.service / / turn off the firewall

Setenforce 0 / / turn off security features

Systemctl start dhcpd / / start the DHCP service

Systemctl start tftp / / start the tftp service

Systemctl start vsftpd / / start the vsftpd service

At this point, our PXE service is deployed, and now we can restart the bare metal for PXE deployment and installation.

Restart is eye disease and quickly press Esc, the following interface will appear below, here we choose the fourth one, install the machine from the network.

After that, the following interface will appear, enter directly after the boot appears, and the following steps will be the same as our normal installation.

Kickstart unattended installation machine

Although we use PXE for remote automatic installation, but the subsequent installation settings still need to be operated manually, the next thing we will bring to you is that after entering the startup installation interface, there is no need for manual setup and subsequent installation operation of kickstart unattended technology!

We first need to install the systemc-config- kickstart service before going unattended.

Command: yum install systemc-config- kickstart-y

Configure installation answer parameters

The Kickstart Configurator window can be opened from the desktop menu "applications" → "system tools" → "Kickstart".

1. Basic configuration

The default language is changed to simplified Chinese, the time zone is adjusted to Asia and Shanghai, the root password is set, and restart after installation is checked.

2. Installation method

Select a new installation, and the installation method is FTP,FTP server: ftp://192.168.100.100 ftp directory centos7

3. Zoning information

/ boot 500MB

/ home 4096MB

Swap 4096MB

/ use all unused space on disk

4. Network configuration

Network equipment: ens33

Network type: DHCP

5. Firewall configuration

SELinux: disablin

Security level: disable firewall

6. Post-installation script

Use the interpreter: / bin/bash

Save the file to the / var/ftp directory

Enter the profile by anacomda-ks.cfg.

Copy the following to the end of the ks.cfg file.

Enter the default file to configure the following

Restart after installing a bare metal in the virtual machine (we will not cover the installation process here), but it is important to note that the network type of the installation wizard needs to choose host-only mode.

Press Esc when rebooting, select the fourth one to install from the network

After that, the following interface will pop up and press enter directly.

Now you can install the machine automatically without manual operation.

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