Instalación con un clic del script de shell (pxe con kickstart desatendido)

Instalación con un clic del script de shell (pxe con kickstart desatendido)

Instalación desatendida con script de shell

Los pasos detallados para imágenes y textos se pueden encontrar en la publicación anterior del blog:

La instalación de red por lotes PXE (tutorial experimental súper detallado) le enseña a automatizar la instalación por lotes de sistemas Linux

vim pxe.sh
#!/bin/bash
#安装并启用 TFTP 服务
rpm -qc tftp-server.x86_64
 if [ $? -ne 0 ]
   then
yum install -y tftp-server.x86_64 &> /dev/null

 fi
rpm -qc xinetd
 if [ $? -ne 0 ]
   then
 yum -y install xinetd &>/dev/null
 fi

sed -i 's/yes/no/g' /etc/xinetd.d/tftp
systemctl start tftp
systemctl enable tftp
systemctl start xinetd
systemctl enable xinetd
#安装并启用 DHCP 服务
yum -y install dhcp &>/dev/null
\cp /usr/share/doc/dhcp-4.2.5/dhcpd.conf.example /etc/dhcp/dhcpd.conf
echo 'ddns-update-style none;
next-server 192.168.126.20;
filename "pxelinux.0";' >> /etc/dhcp/dhcpd.conf

echo   'subnet 192.168.126.0 netmask 255.255.255.0 {
range 192.168.126.100 192.168.126.200;
option routers 192.168.126.20;
}' >> /etc/dhcp/dhcpd.conf
systemctl start dhcpd
systemctl enable dhcpd
#准备 Linux 内核、初始化镜像文件
df -h | grep sr0
if [ $? -eq 0 ]
then
echo "光盘镜像已挂在"
else
  mount /dev/cdrom /mnt
fi
\cp /mnt/images/pxeboot/vmlinuz /var/lib/tftpboot
\cp /mnt/images/pxeboot/initrd.img /var/lib/tftpboot

#准备 PXE 引导程序
yum -y install syslinux &>/dev/null
\cp /usr/share/syslinux/pxelinux.0 /var/lib/tftpboot/

#安装FTP服务，准备CentOS 7 安装源
yum -y install vsftpd &>/dev/null
mkdir /var/ftp/centos7
\cp -rf /mnt/* /var/ftp/centos7/
systemctl start vsftpd
systemctl enable vsftpd

#配置启动菜单文件
mkdir /var/lib/tftpboot/pxelinux.cfg
touch /var/lib/tftpboot/pxelinux.cfg/default
cat > /var//lib/tftpboot/pxelinux.cfg/default <<EOF
default auto
prompt 0
label auto
kernel vmlinuz
append initrd=initrd.img method=ftp://192.168.126.20/centos7 ks=ftp://192.168.126.20/ks.cfg
label linux text
kernel vmlinuz
append text initrd=initrd.img method=ftp://192.168.126.20/centos7
label linux rescue
kernel vmlinuz
append rescue initrd=initrd.img method=ftp://192.168.126.20/centos7
EOF
#关闭防火墙，验证PXE安装
systemctl stop firewalld.service
setenforce 0
yum install -y system-config-kickstart &>/dev/null
\cp /root/ks.cfg /var/ftp/ks.cfg

/root/ks.cfg的内容

#platform=x86, AMD64, 或 Intel EM64T
#version=DEVEL
# Install OS instead of upgrade
install
# Keyboard layouts
keyboard 'us'
# Root password
rootpw --iscrypted $1$W.DC43qQ$xKFG9eiHd9shGDTYvzucb.
# Use network installation
url --url="ftp://192.168.126.20/cenos7"
# System language
lang zh_CN
# Firewall configuration
firewall --disabled
# System authorization information
auth  --useshadow  --passalgo=sha512
# Use graphical install
graphical
firstboot --disable
# SELinux configuration
selinux --enforcing

# Network information
network  --bootproto=dhcp --device=ens33
# Halt after installation
halt
# System timezone
timezone Asia/Shanghai
# 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=500
part swap --fstype="swap" --size=4096
part /home --fstype="xfs" --size=4096
part / --fstype="xfs" --grow --size=1

%post --interpreter=/bin/bash
rm -rf /etc/yum.repos.d/*
echo '[local]
name=local
baseurl=ftp://192.168.126.20/centos7
enabled=1
gpgcheck=0’ > /etc/yum.repos.d/local.repo
%end


%packages
@^gnome-desktop-environment
@base
@core
@desktop-debugging
@dial-up
@directory-client
@fonts
@gnome-desktop
@guest-agents
@guest-desktop-agents
@input-methods
@internet-browser
@java-platform
@multimedia
@network-file-system-client
@networkmanager-submodules
@print-client
@x11
chrony
kexec-tools

%end