Linux PXE network installed unattended

Project analysis
The realization of the remote installation:
Configuration Dhcp+http+tftp provides
Graphical PXE menu via VESAMENU.C32 module
Provide KS answer files for different systems separately
The third-party RPM package is provided as a Yum Source:
Centrally available RPM packages for Ntfs-3g,libreoffice
Establish Repodata through Createrepo

Project Difficulty Analysis:
PXE Graphics boot Menu
Files that need to be prepared (provided by package syslinux-*)
Graphics Support module:/tftp root directory/vesamenu.c32
Background image file:/tftp root directory/splash.jpg
[Email protected] ~]# yum-y install Syslinux
[[Email protected] ~] #cd/var/lib/tftpboot
[Email protected] tftpboot]# RPM-QL syslinux-nonlinux| grep VESA
[[email protected] tftpboot~] #cp/usr/share/syslinux/vesamenu.c32/var/lib/tftpboot/
[Email protected] tftpboot]# RPM-QL syslinux | grep jpg
[Email protected] tftpboot]# cp/usr/share/doc/syslinux-4.04/sample/syslinux_splash.jpg/var/lib/tftpboot/ Splash.jpg
[[Email protected] ~] #ls/var/lib/tftpboot
Initrd.img pxelinux.0 pxelinux.cfg splash.jpg vesamenu.c32 vmlinuz
[Email protected] ~]# CD myiso/isolinux/
[[email protected] isolinux]# ls
Boot.cat grub.conf isolinux.bin memtest TRANS. TBL Vmlinuz
Boot.msg initrd.img isolinux.cfg splash.jpg VESAMENU.C32
[email protected] isolinux]# cat isolinux.cfg >/var/lib/tftpboot/pxelinux.cfg/default (the isolinux.cfg of this directory is covered in/TFTP Under
[[email protected] tftpboot]# mkdir redhat (Create Rehat folder)
[[email protected] tftpboot]# mkdir CentOS (create CentOS folder)
[[email protected] tftpboot]# ls
CentOS pxelinux.0 Redhat VESAMENU.C32
Initrd.img pxelinux.cfg splash.jpg Vmlinuz
[[Email protected] tftpboot]# mv Vmlinuz initrd.img redhat/(Create Rehat and CentOS folders, place the respective kernel files in the corresponding directory)
[[email protected] pxelinux.cfg]# cd/var/ftp/(Place an answer file and mirror in this directory)
Centos.cfg Pub redhat.cfg Rhel6

Configuration essentials:
Modify the configuration file tftp root/pxelinux.cfg/default
Default VESAMENU.C32 (Start graphics module)
#prompt 1
Timeout-
........
Menu Background splash.jpg (specify background picture)
Menu title Welcome to Red Hat Enterprise Linux 6.7! (menu title)
Label Redhat (Startup item text
Menu Label Install ^redhat (^ used to define shortcut keys)
Kernel redhat/vmlinuz
Append ks=ftp://192.168.4.7/redhatks.cfg INITRD=REDHAT/INITRD.IMG (Auto answer file to/var/ftp/to create the corresponding file)
label CentOS
Menu label Install ^centos
Kernel Centos/vmlinuz
Append ks=ftp://192.168.4.7/centosks.cfg initrd=centos/initrd.img (auto answer file to/var/ftp/to create the corresponding file)
Label Rescue
Menu label ^rescue redhat (rescue mode)
Kernel redhat/vmlinuz
Append initrd=initrd.img Rescue
Label redcue
Menu label Install ^rescue centos (rescue mode)
Kernel centos/vmlinuz
Append initrd=initrd.img rescue
label Local
Menu label Boot from ^local Drive
meni default
localboot 0xffff

Create a non-root account
[[Email protected] ~] #useradd-u 0-o admin
[[Email protected] ~] #echo 12345 |passwd--stdin Admin

Creating a Yum source through Createrepo
[[email protected] ~]# yum-y install Createrepo (Installing the Yum Warehouse configuration)
[[Email protected] ~] #mkdir/var/tfp/yum1 (Create folder)
[Email protected] ~]# CP-RF rpms/*.rpm langpack_zh-cn/*.rpm/var/ftp/yum1/(Prepare software catalog)
[[email protected] ~]# createrepo/var/ftp/yum1/(Generate Yum Warehouse archive)
[[email protected] ~]# Yum-config-manager--add-repo ftp://192.168.4.7/yum1 (add a new Yum source)
[Email protected] ~]# vim 192.168.4.7_yum1.repo
[192.168.4.7_YUM1]
name=added FROM:FTP://192.168.4.7/YUM1
Baseurl=ftp://192.168.4.7/yum1
Enabled=1
Gpgcheck=0 (add 0, unsigned package)

Linux PXE network installed unattended