PXE Boot : Network Installation (Kick Start)2020/02/12

	Automate Network Installation by Kick Start.
[1]	First, Configure basic Network Installation setting (BIOS based) or Configure basic Network Installation setting (UEFI based).
[2]	Configure Kick Start settings.

# generate root password

[root@dlp ~]#

python3 -c 'import crypt,getpass; \
print(crypt.crypt(getpass.getpass(), \
crypt.mksalt(crypt.METHOD_SHA512)))'

Password:
$6$EC1T.oKN5f3seb20$y1WlMQ7Ih424OwOn.....

[root@dlp ~]#

mkdir /var/www/html/ks

[root@dlp ~]#

vi /var/www/html/ks/centos8-ks.cfg

# create new

# automatically proceed for each steps
autostep

# reboot after installing
reboot

# encrypt algorithm
auth --enableshadow --passalgo=sha512

# installation source
url --url=http://10.0.0.30/centos8/

# install disk
ignoredisk --only-use=sda

# keyboard layouts
keyboard --vckeymap=jp106 --xlayouts='jp','us'

# system locale
lang en_US.UTF-8

# network settings
network  --bootproto=dhcp --ipv6=auto --activate --hostname=localhost

# root password you generated above
rootpw --iscrypted $6$EC1T.oKN5f3seb20$y1WlMQ7Ih424OwOn.....

# timezone
timezone Asia/Tokyo --isUtc --nontp

# bootloaders settings
bootloader --location=mbr --boot-drive=sda

# initialize all partition tables
zerombr
clearpart --all --initlabel

# partitioning
# for [/boot/efi], it needs only for UEFI clients
part /boot --fstype="ext4" --ondisk=sda --size=1024
part /boot/efi --fstype="vfat" --ondisk=sda --size=512
part pv.10 --fstype="lvmpv" --ondisk=sda --size=30720
volgroup VolGroup --pesize=4096 pv.10
logvol / --fstype="xfs" --size=20480 --name=root --vgname=VolGroup
logvol swap --fstype="swap" --size=4096 --name=swap --vgname=VolGroup

%packages
@core
%end

[root@dlp ~]#

chmod 644 /var/www/html/ks/centos8-ks.cfg

[3]	For BIOS based clients, Configure like follows.

[root@dlp ~]#

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

# change like follows

default vesamenu.c32
prompt 1
timeout 60

display boot.msg

label linux
  menu label ^Install CentOS 8
  menu default
  kernel centos8/vmlinuz
  append initrd=centos8/initrd.img ip=dhcp inst.ks=http://10.0.0.30/ks/centos8-ks.cfg
.....
.....

[4]	For UEFI based clients, Configure like follows.

[root@dlp ~]#

vi /var/lib/tftpboot/grub.cfg

# change like follows

set timeout=30
menuentry 'Install CentOS 8' {
    linuxefi centos8/vmlinuz ip=dhcp inst.ks=http://10.0.0.30/ks/centos8-ks.cfg
    initrdefi centos8/initrd.img
}

[5]	Power on a computer which is enabled network booting on BIOS/UEFI settings, then installation process starts and will finish automatically. Below is the state after finishing installation and restarting automatically.

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