通过kickstart自动安装系统
安装前准备：一定要配置好网络安装服务器
1.yum install httpd
2.关闭SElinux，关闭防火墙
setenforce 0
service iptables stop ; service iptables off
3.启动服务service httpd start ;service httpd status
4.在/var/www/html目录下创建文件夹
mkdir -p /var/www/html/centos/{6,7}
5.分别把centos6.9，centos7.4的光盘挂载到 /var/www/html/centos/6， /var/www/html/centos/7上
mount /dev/sr0 /var/www/html/centos/6
mount /dev/sr1 /var/www/html/centos/7
6.打开浏览输入路径能访问到如下页面则说明成功
1、准备kickstart文件，可以根据anaconda-ks.cfg文件进行修改，也可使用创建工具：system-config-kickstart生成新的配置。（不过centos7上使用该工具时得修改一下yum源中base源的名字，改为development，否则安装包无法显示）
centos6的kickstart文件：
#platform=x86, AMD64, 或 Intel EM64T
#version=DEVEL
# Firewall configuration
firewall --disabled
# Install OS instead of upgrade
install
# Use network installation
url --url="http://192.168.239.129/centos/6"
# Root password
rootpw --plaintext 123456
# System authorization information
auth --useshadow --passalgo=sha512
# Use text mode install
text
firstboot --disable
# System keyboard
keyboard us
# System language
lang en_US
# SELinux configuration
selinux --disabled
# Installation logging level
logging --level=info
# Reboot after installation
reboot
# System timezone
timezone Asia/Shanghai
# Network information
network --bootproto=static --device=eth0 --gateway=192.168.239.1 --ip=192.168.239.131 --netmask=255.255.255.0 --onboot=on
# System bootloader configuration
bootloader --append="selinux=0" --location=mbr
# Clear the Master Boot Record
zerombr
# Partition clearing information
clearpart --all --initlabel
# Disk partitioning information
part /boot --fstype="ext4" --size=500
part / --fstype="ext4" --size=20000
part swap --fstype="swap" --size=2048
%post
mkdir /etc/yum.repos.d/yum.bak
mv /etc/yum.repos.d/*.repo /etc/yum.repos.d/yum.bak
cat >/etc/yum.repos.d/base.repo<<EOF
[base]
name=base
baseurl=http://192.168.239.129/centos/6
gpgcheck=0
EOF
useradd cwj
echo 123456 | passwd --stdin cwj
%end
%packages
@core
@server-policy
@workstation-policy
%end
centos7的kickstart文件：
#version=DEVEL
# System authorization information
auth --enableshadow --passalgo=sha512
# Use CDROM installation media
url --url="http://192.168.239.129/centos/7"
# Use graphical install
text
# Run the Setup Agent on first boot
firstboot --enable
ignoredisk --only-use=sda
reboot
# Keyboard layouts
keyboard --vckeymap=cn --xlayouts='cn'
# System language
lang zh_CN.UTF-8
# Network information
network --bootproto=dhcp --device=ens33 --onboot=on --ipv6=auto --activate
network --hostname=centos7.cwj.com
# Root password
rootpw --iscrypted $6$Gc0Xp64gwbnbXaz/$oto/r0KN.uARfEvqsKu3Vax0NAGZGISe.fugaFHGtsqt5RQsLTWA/vYf/ANUbKm6zwJ3/8GYWVYTq9WPmbPhz1
# System services
services --disabled="chronyd"
# System timezone
timezone Asia/Shanghai --isUtc --nontp
user --name=cwj --password=$6$q2Mexpvnzn0BJzu8$a3iWuNCurYMqPpmfU5aXYsTVso98J2asMdZJe9Pks6iKn0nV9NfLfMVpUYd8HaAOtE7OAf8W7re8Ebr2aXGNh0 --iscrypted --gecos="cwj"
# X Window System configuration information
xconfig --startxonboot
# System bootloader configuration
bootloader --append=" crashkernel=auto" --location=mbr --boot-drive=sda
#autopart --type=lvm
# Partition clearing information
clearpart --all --initlabel
zerombr
#Disk partitioning information
part /boot --fstype="xfs" --ondisk=sda --size=1024
part / --fstype="xfs" --ondisk=sda --size=51200
part /data --fstype="xfs" --ondisk=sda --size=30000
part swap --fstype="swap" --ondisk=sda --size=2048
%packages
@^graphical-server-environment
@base
@core
@desktop-debugging
@dial-up
@gnome-desktop
@guest-agents
@guest-desktop-agents
@hardware-monitoring
@internet-browser
@multimedia
@x11
kexec-tools
%end
%addon com_redhat_kdump --enable --reserve-mb='auto'
%end
%post
mkdir /etc/yum.repos.d/yum.bak
mv /etc/yum.repos.d/*.repo /etc/yum.repos.d/yum.bak
cat >/etc/yum.repos.d/base.repo<<EOF
[base]
name=base
baseurl=http://192.168.239.129/centos/7
gpgcheck=0
EOF
useradd cwj
echo 123456 | passwd --stdin cwj
%end
%anaconda
pwpolicy root --minlen=6 --minquality=1 --notstrict --nochanges --notempty
pwpolicy user --minlen=6 --minquality=1 --notstrict --nochanges --emptyok
pwpolicy luks --minlen=6 --minquality=1 --notstrict --nochanges --notempty
%end