无人值守安装(Unattended Setup)指软件安装时无需任何用户干预，直接按默认或通过应答文
无人值守安装(Unattended Setup)指软件安装时无需任何用户干预，直接按默认或通过应答文件设置安装，这对于无特殊需求的用户或企业大批量部署安装操作系统及软件时非常方便。
环境
Ubuntu-desktop(ip:192.168.56.11)
安装软件
apt install dnsmasq apache2 system-config-kickstart
配置dnsmasq
vim /etc/dnsmasq.conf
bogus-priv
filterwin2k
interface=eth0
dhcp-range=192.168.5.150,192.168.5.250,12h
dhcp-boot=pxelinux.0
enable-tftp
tftp-root=/var/ftpd
dhcp-authoritative
创建必要的目录
mkdir /var/ftpd
mkdir /var/www/ubuntu
挂载安装介质
mount /dev/cdroom /mnt
cp /mnt/* /var/www/ubuntu -arf
将网络启动文件复制到网络引导目录
cp /var/www/ubuntu/install/netboot/* /var/ftpd -arf/
修改apache2配置文件
vim /etc/apache2/sites-enabled/000-default.conf
DocumentRoot /var/www
#这里只给出了关键配置
运行system-config-kickstart生成ks.cfg文件
编辑响应文件ks.cfg
vim /var/www/ks.cfg
#Generated by Kickstart Configurator
#platform=AMD64 or Intel EM64T
install
text
#System language
lang en_US
#Language modules to install
langsupport en_US
#System keyboard
keyboard us
#System mouse
mouse
#System timezone
timezone --utc Asia/Shanghai
#Root password
rootpw --disabled
#Initial user
user wsfnk --fullname "wsfnk" --iscrypted --password $1$Q4SPUaqc$KCsPmeMevJS0zzrqLTeVw0
#Reboot after installation
reboot
#Use text mode install
#text
#Install OS instead of upgrade
#install
#Use Web installation
url --url
#System bootloader configuration
bootloader --location=mbr
#Clear the Master Boot Record
zerombr yes
#Partition clearing information
clearpart --all --initlabel
#Disk partitioning information
part swap --size 512
part /boot --fstype ext4 --size 200
part / --fstype ext4 --size 1 --grow
#System authorization infomation
auth --useshadow --enablemd5
#Firewall configuration
firewall --disabled
#Do not configure the X Window System
skipx
%packages
openssh-server
openssh-client
gcc
g++
vim
curl
编辑引导文件
vim /var/ftpd/pxelinux.cfg/default
path ubuntu-installer/amd64/boot-screens/
include ubuntu-installer/amd64/boot-screens/menu.cfg
default ubuntu-installer/amd64/boot-screens/vesamenu.c32
default install
label install
kernel ubuntu-installer/amd64/linux
append ks= initrd=ubuntu-installer/amd64/initrd.gz --
prompt 0
timeout 0
启动相关服务
systemctl start apache2
systemctl start dnsmasq
若安装出现如下错误，
请在ubuntu-installer/amd64/boot-screens/txt.cfg里，append加入如下配置
live-installer/net-image=/install/filesystem.squashfs clock-setup/ntp=false ip=dhcp ksdevice=bootif
解决图片所示的错误
vim /var/ftpd/ubuntu-installer/amd64/boot-screens/txt.cfg
default install
label install
menu label ^Install
kernel ubuntu-installer/amd64/linux
append ks= vga=788 initrd=ubuntu-installer/amd64/initrd.gz live-installer/net-image=/install/filesystem.squashfs clock-setup/ntp=false ip=dhcp ksdevice=bootif --- quit