linux Network OS 설치 하기 - PXE 서버 구성

1.방화벽 disable

systemctl stop firewalld
systemctl disable firewalld
sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/sysconfig/selinux
cat /etc/sysconfig/selinux
reboot

2.필요 패키지 설치

yum install dhcp tftp-server httpd syslinux xinetd tftp

3.dhcp 설정
vi /etc/dhcp/dhcpd.conf 수정

ddns-update-style interim;
ignore client-updates;
authoritative;
allow booting;
allow bootp;
allow-unknown-clients;
#internal subnet
subnet 192.168.208.0 netmask 255.255.240.0 {
range 192.168.212.20 192.168.212.40;
option routers 192.168.208.1;
default-lease-time 3600;
max-lease-time 7200;

##PXE Server IP
next-server 192.168.212.100;
filename "pxelinux.0";
}

subnet: DHCP 클라이언트 IP 대역
range: DHCP 클라이언트 IP 할당 범위
option domain-name-servers: DNS 서버 IP
option domain-name: DNS 도메인 이름
option routers: 기본 게이트웨이 IP
default-lease-time: IP 할당 시간 (초)
max-lease-time: 최대 IP 할당 시간 (초)
next-server: TFTP 서버 IP
filename: 클라이언트가 받을 부트 이미지 파일

systemctl start dhcpd
systemctl enable dhcpd

4.tftp 설정
vi /etc/xinetd.d/tftp 수정
disable = no 변경

service tftp
{
        socket_type             = dgram
        protocol                = udp
        wait                    = yes
        user                    = root
        server                  = /usr/sbin/in.tftpd
        server_args             = -s /var/lib/tftpboot
        disable                 = no
        per_source              = 11
        cps                     = 100 2
        flags                   = IPv4
}

 

systemctl start xinetd
systemctl enable xinetd
systemctl start tftp
systemctl enable tftp

5.OS 이미지 mount

 ISO 파일 mount 또는 html 경로의 ISO 파일 복사해 됨

cd /home
mkdir -p /var/www/html/ISO/Centos7
mkdir -p /var/www/html/ISO/clonezilla
ll /var/www/html/ISO
mount -t iso9660 -o loop CentOS-7-x86_64-DVD-2009.iso /var/www/html/ISO/Centos7
mount -t iso9660 -o loop clonezilla-live-3.1.0-22-amd64.iso /var/www/html/ISO/clonezilla
df -h

6.http 재시작 및 확인

systemctl restart httpd
systemctl enable httpd

웹확인
http://192.168.212.100/ISO/

 

7.pxe 부트 이미지 복사

mkdir -p /var/lib/tftpboot/centos7
mkdir -p /var/lib/tftpboot/clonezilla
cd /var/lib/tftpboot/centos7
cp /var/www/html/ISO/Centos7/images/pxeboot/initrd.img ./
cp /var/www/html/ISO/Centos7/images/pxeboot/vmlinuz ./
cd ..
cd clonezilla
cp /var/www/html/ISO/clonezilla/live/initrd.img ./
cp /var/www/html/ISO/clonezilla/live/vmlinuz ./
cd ..
cp /usr/share/syslinux/pxelinux.0 /var/lib/tftpboot/
cp /usr/share/syslinux/menu.c32 /var/lib/tftpboot/
cp /usr/share/syslinux/chain.c32 /var/lib/tftpboot/
cp /usr/share/syslinux/mboot.c32 /var/lib/tftpboot/
cp /usr/share/syslinux/memdisk /var/lib/tftpboot/
ls

8.tftpboot 755 권한 적용

chmod 755 /var/lib/tftpboot

9.pxe 부팅 menu 생성(centos7,clonezilla)

mkdir /var/lib/tftpboot/pxelinux.cfg

vi /var/lib/tftpboot/pxelinux.cfg/default 생성 후 수정

default menu.c32
prompt 0
timeout 300
ONTIMEOUT local

menu title ###### PXE Boot Menu ######

label Boot from local drive
localboot 0


label Centos 7.9
kernel centos7/vmlinuz
append initrd=centos7/initrd.img inst.repo=http://192.168.212.100/ISO/centos7

label Clonezilla
KERNEL clonezilla/vmlinuz
APPEND initrd=clonezilla/initrd.img boot=live config noswap nolocales edd=on nomodeset ocs_live_run="ocs-live-general" ocs_live_extra_param="" ocs_live_keymap="NONE" ocs_live_batch="no" ocs_lang="en_US.UTF-8" vga=788 nosplash noprompt ocs_prerun="" fetch=http://192.168.212.100/clonezilla/live/filesystem.squashfs

 

chmod 775 /var/lib/tftpboot/pxelinux.cfg/default
systemctl restart tftp

 

10. client PXE 부팅