PXE全自动安装操作系统--centos7.3学习笔记

PXE服务器：192.168.110.110

环境准备

安装软件

	# yum -y install dhcp tftp-server tftp vsftpd lftp

DHCP配置

# cd /var/dhcp
# cp /usr/share/doc/dhcp-4.2.5/dhcpd.conf.example /etc/dhcp/dhcpd.conf
# vim /etc/dhcp/dhcpd.conf
subnet 192.168.110.0 netmask 255.255.255.0 {
range 192.168.110.3 192.168.110.88;
next-server 192.168.110.110;
filename "pxelinux.0";
default-lease-time 600;
max-lease-time 7200;
}

TFTP配置

	# yum -y install xinetd
	# vim /etc/xinetd.d/tftp
disable =no
	# systemctl restart xinetd
	# systemctl stop firewalld
	# setenforce 0
	# chmod 777 /var/lib/tftpboot -R

拷贝引导文件：

	# yum provides */pexlinux.0
syslinux-4.05-13.el7.x86_64
	# yum install syslinux -y
	# cp /usr/share/syslinux/pxelinux.0 /var/lib/tftpboot

准备default文件：

	# mkdir /var/lib/tftpboot/pxelinux.cfg
	# mount /dev/cdrom /mnt
	# cp /mnt/isolinux/* /var/lib/tftpboot/
	# cp /mnt/isolinux/isolinux.cfg /var/lib/tftpboot/pxelinux.cfg/default
	# vim /var/lib/tftpboot/pxelinux.cfg/default
	label linux
	menu lable ^install CentOS Linux 7
	append initrd=initrd.img
	inst.stage2=ftp://192.168.110.110/centos7u3 inset.repo=ftp://192.168.110.110/centos7u3 ks=ftp://192.168.110.110/ks.cfg

vsftpd配置

	# cd /var/ftp/
	# mkdir centos7u3
	# mount /dev/cdrom centos7u3
	# systemctl start vsftpd

ks.cfg

	# platform=x86, AMD64, 或 Intel EM64T
	# version=DEVEL
	# Install OS instead of upgrade
		install
	# Keyboard layouts
	keyboard 'us'
	# Root password
	rootpw --iscrypted $1$mxXMfdmL$Sqdg6BBzPf76kWD4WpaU.1
user --name=martin --password=$6$qxZqHFOqqG.q3S1E$BDsWv00mnyllWVsDvfscFDDVLOXdoR/qplm5MISsUczVFZTc.HVGCEdKPmWJox5ZYfzIFafuSDq51nE8URJAA1 --iscrypted --gecos="martin"
	# System timezone
	timezone Asia/Shanghai --isUtc
	# Use network installation
		url --url="ftp://192.168.87.101/centos7"
	# System language
		lang en_US
	# Firewall configuration
	firewall --enabled
	# System authorization information
		auth  --useshadow  --passalgo=sha512
	# Use graphical install
		graphical
		firstboot --disable
	# SELinux configuration
			selinux --disable
	# Network information
			network  --bootproto=dhcp --device=eth0
	# Reboot after installation
			reboot
	# System bootloader configuration
			bootloader --location=mbr
	# Clear the Master Boot Record
	zerombr
	# Partition clearing information
	clearpart --all --initlabel
	# Disk partitioning information
	part /boot --fstype="xfs" --size=200
	part swap --fstype="swap" --size=2048
	part / --fstype="xfs" --grow --size=1

	%packages
	@core
	@base
	bash-completion
	vim-enhanced
	%end

%post
mkdir /etc/yum.repos.d/default
mv /etc/yum.repos.d/C* /etc/yum.repos.d/default
cat << eof > /etc/yum.repos.d/centos.repo
[centos]
name=centos
baseurl=ftp://172.16.8.100
enabled=1
gpgcheck=0
eof
%end