PXE 설치(FTP 방식)

1. DHCP 서버 설치

yum -y install dhcp-server
혹은
dnf install dhcp-server

# vi /etc/dhcp/dhcp.conf

#
# DHCP Server Configuration file.
#   see /usr/share/doc/dhcp-server/dhcpd.conf.example
#   see dhcpd.conf(5) man page
#
dhcp_interface="ens34";

subnet 192.168.203.0 netmask 255.255.255.0 {
     option routers 192.168.203.1;
     option subnet-mask 255.255.255.0;
     range dynamic-bootp 192.168.203.33 192.168.203.38;
     default-lease-time 3600;
     max-lease-time 7200;
     ### pxe setting ###
     allow booting;
     allow bootp;
     next-server 192.168.203.1;
     filename "pxelinux.0";
}

PXE interface 이름 확인하고 넣을 것!!

2. TFTP-Server 설치

yum -y install[dnf install] tftp-server

cp /usr/lib/systemd/system/tftp.service /etc/systemd/system/tftp-server.service
cp /usr/lib/systemd/system/tftp.socket /etc/systemd/system/tftp-server.socket

파일 복사 후 변경된 경로에서 제대로 동작하기 위해 파일을 아래처럼 수정!

# vi /etc/systemd/system/tftp-server.service

[Unit]
Description=Tftp Server
Requires=tftp-server.socket
Documentation=man:in.tftpd

[Service]
ExecStart=/usr/sbin/in.tftpd -s /var/lib/tftpboot
StandardInput=socket

[Install]
WantedBy=multi-user.target
Also=tftp-server.socket

# vi /etc/systemd/system/tftp-server.socket

[Unit]
Description=Tftp Server Activation Socket

[Socket]
ListenDatagram=69
BindIPv6Only=both

[Install]
WantedBy=sockets.target

 

데몬 재시작

systemctl restart tftp-server

 

syslinux 설치

dnf install syslinux

 

부팅에 필요한 파일 복사

cp /usr/share/syslinux/menu.c32 /var/lib/tftpboot/
cp /usr/share/syslinux/pxelinux.0 /var/lib/tftpboot/
cp /usr/share/syslinux/ldlinux.c32 /var/lib/tftpboot/
cp /usr/share/syslinux/libutil.c32 /var/lib/tftpboot/

 

3. PXE 구성 파일 설정

mkdir /var/lib/tftpboot/pxelinux.cfg

 

# vi /var/lib/tftpboot/pxelinux.cfg/default

default menu.c32
prompt 0
timeout 150
ontimeout local

LABEL local
        MENU LABEL Boot Local Disk
        localboot 0

LABEL RockyLinux8.6
        MENU LABEL RockyLinux 8.6 Install
        KERNEL /rockylinux8.6/vmlinuz
        APPEND initrd=/rockylinux8.6/initrd.img inst.repo=ftp://192.168.203.32/rockylinux8.6

 

4. FTP 서버 활용하여 로컬 레포지토리 생성

ftp 패키지 설치

dnf install vsftpd

# vi /etc/vsftpd/vsftpd.conf

11 # Allow anonymous FTP? (Beware - allowed by default if you comment this out).
12 anonymous_enable=YES

103 #chroot_list_file=/etc/vsftpd/chroot_list
104 #
105 chroot_local_user=YES
106 allow_writeable_chroot=YES
107 use_localtime=YES
108 # You may activate the "-R" option to the builtin ls. This is disabled by

 

설치에 필요한 ISO 이미지 파일 마운트

# lsblk

[root@localhost pxelinux.cfg]# lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0   2.7T  0 disk 
├─sda1   8:1    0     2M  0 part 
├─sda2   8:2    0   200G  0 part /
└─sda3   8:3    0    32G  0 part [SWAP]
sdb      8:16   0 111.8G  0 disk 
├─sdb1   8:17   0   100M  0 part 
├─sdb2   8:18   0    16M  0 part 
├─sdb3   8:19   0 111.1G  0 part 
└─sdb4   8:20   0   557M  0 part 
sdc      8:32   1  28.7G  0 disk 
└─sdc1   8:33   1  28.7G  0 part /run/media/root/ROCKY-8-6-X

 

# df -h

[root@localhost pxelinux.cfg]# df -h
Filesystem      Size  Used Avail Use% Mounted on
devtmpfs        7.7G     0  7.7G   0% /dev
tmpfs           7.7G     0  7.7G   0% /dev/shm
tmpfs           7.7G  9.7M  7.7G   1% /run
tmpfs           7.7G     0  7.7G   0% /sys/fs/cgroup
/dev/sda2       196G   18G  169G  10% /
tmpfs           1.6G   60K  1.6G   1% /run/user/0
/dev/sdc1        29G   11G   19G  37% /run/media/root/ROCKY-8-6-X

 

USB의 파일들을 임시로 출력해줄 디렉터리 생성

cd /tmp
mkdir usb

 

mount 명령어를 통해 연결한 usb를 /tmp/usb라는 폴더로 출력되게 합니다

mount -t vfat /dev/sdc1 /tmp/usb
umount /tmp/usb

 

CD 내용 복사하여 로컬레포지토리 구성

mkdir /var/ftp/rockylinux8.6
cp -r /mnt/. /var/ftp/rockylinux8.6/

 

OS 부팅 이미지 복사

mkdir /var/lib/tftpboot/rockylinux8.6
cp /var/ftp/rockylinux8.6/images/pxeboot/initrd.img /var/lib/tftpboot/rockylinux8.6/
cp /var/ftp/rockylinux8.6/images/pxeboot/vmlinuz /var/lib/tftpboot/rockylinux8.6/

 

서비스 시작

systemctl restart vsftpd tftp-server dhcpd

 

FTP 확인

[root@localhost rockylinux8.6]# curl ftp://localhost/rockylinux8.6/
drwxr-xr-x    4 0        0            4096 Dec 11 08:19 AppStream
drwxr-xr-x    4 0        0            4096 Dec 11 08:20 BaseOS
drwxr-xr-x    3 0        0            4096 Dec 11 08:20 EFI
-rw-r--r--    1 0        0            2204 Dec 11 08:20 LICENSE
drwxr-xr-x    2 0        0            4096 Dec 11 08:14 System Volume Information
-rw-r--r--    1 0        0             883 Dec 11 08:20 TRANS.TBL
-rw-r--r--    1 0        0           34494 Dec 11 08:20 autorun.ico
-rw-r--r--    1 0        0             228 Dec 11 08:14 autorun.inf
drwxr-xr-x    3 0        0            4096 Dec 11 08:20 images
-rw-r--r--    1 0        0        83253316 Dec 12 01:17 initrd.img
drwxr-xr-x    2 0        0            4096 Dec 11 08:20 isolinux
-r--r--r--    1 0        0           69145 Dec 11 08:14 ldlinux.sys
-rw-r--r--    1 0        0              86 Dec 11 08:20 media.repo
-rw-r--r--    1 0        0              94 Dec 11 08:20 syslinux.cfg
-rw-r--r--    1 0        0        10457392 Dec 12 01:18 vmlinuz