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

First of all, we need to install the TFTP server based on UDP protocol for later network transmission of simple files.

Import the boot file and kernel file that need to be provided to the client in the TFTP root path, and the PXE bootstrap file pxelinux.0 (provided by the syslinux program), start the menu configuration settings, create the pxelinux.cfg directory, rename the isolinux.cfg boot image file to default, install the dhcp service, in order to dynamically assign the IP address to the client and transfer the PXE bootstrap file to the client based on UDP, install vsftpd In order to provide the source package for the client to install the operating system after a successful PXE boot, install kickstart, guide the path to the script file for automatic deployment in the default default file, and perform test results on the client

The main experimental process:

Experiment 1: using Centos7 to realize unattended automatic installation

1, install dhcp,vsftpd

Mount / dev/sr0 / media/cdrom

Yum-y install dhcp vsftp vsftp-server

Cat / usr/share/doc/dhcp-4.2.5/dhcpd.conf.example > / etc/dhcp/dhcpd.conf

Vim / etc/dhcp/dhcpd.conf

Systemctl start dhcpd

Ss-unl # to see if port 67 is listening

Rpm-ql tftp-server

2. Modify the vsftpd configuration file

The Ls / var/lib/tftpboot # tftp file accesses the root directory, now there are no files

Vim / etc/xinetd.d/tftp

Systemctl start tftp.socket # socket is required to enable tftp in 7

Ss-unl # to see if port 69 is listening

3. Install httpd,sysylinux

Yum-y install httpd syslinux

Mkdir-pv / var/www/html/centos/7/x86-64

Systemctl start httpd # access Test

4. Modify the warehouse path and ks.cfg

Rpm-ql syslinux

Cp / usr/share/syslinux/pxelinux.0 / var/lib/tftpboot/

Cd / var/www/html/centos/7/x86-64/images/pxeboot/

Cp .img vmlinuz / var/lib/tftpboot/

Cd / usr/share/syslinux/

Cp chain.c32 menu.c32 memdisk mboot.c32 / var/lib/tftpboot/

Cd / var/lib/tftpboot/

Cp / usr/share/syslinux/vesamenu.c32. /

Mkdir pxelinux.cfg

Ls

Cd prelinux.cfg

Vim default

Summary

Solinux.bin: CD boot program. You need to specify the file path in the options of mkisofs. This file belongs to the SYSLINUX project.

The configuration file of isolinux.cfg:isolinux.bin, when the CD starts (that is, run isolinux.bin), it will automatically find the isolinux.cfg file.

Vesamenu.c32: it is the installation graphical interface after CD boot. It also belongs to the SYSLINUX project. The menu.c32 version is a plain text menu.

Memtest: memory detection, this is an independent program

Splash.jgp: background image of CD boot interface

Vmlinuz is the kernel image

Initrd.img is ramfs (first cpio, then gzip compression)

Delete the two lines of the domain name when modifying the dhcp main configuration file, and automatically find her by default when you install the machine, which will lead to a timeout.

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