PXE Boot : Network Installation (Kick Start)2021/06/24

	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 password

# remember it

# this is the one for root or other users password

[root@dlp ~]#

/usr/libexec/platform-python -c 'import crypt,getpass; \
print(crypt.crypt(getpass.getpass(), \
crypt.mksalt(crypt.METHOD_SHA512)))'

Password:
$6$WRwalxY/5EpHO0DI$qVymqI.....

[root@dlp ~]#

mkdir /var/www/html/ks

[root@dlp ~]#

vi /var/www/html/ks/centos-st8-ks.cfg

# create new

# graphical installation
graphical

# reboot after installing
reboot

# installation source (AppStream)
repo --name="AppStream" --baseurl=http://10.0.0.30/centos-st8/AppStream
# installation source (Base)
url --url="http://10.0.0.30/centos-st8"

# installation packages
%packages
@^minimal-environment
kexec-tools
%end

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

# system locale
lang en_US.UTF-8

# network settings
network  --hostname=localhost.localdomain

# enable first boot setup
firstboot --enable

ignoredisk --only-use=sda

# initialize all partition tables
clearpart --none --initlabel

# partitioning
# for [/boot/efi], it needs only for UEFI clients
part /boot --fstype="xfs" --ondisk=sda --size=1024
part /boot/efi --fstype="vfat" --ondisk=sda --size=512
part pv.278 --fstype="lvmpv" --ondisk=sda --size=30720
volgroup cs --pesize=4096 pv.278
logvol / --fstype="xfs" --grow --size=1024 --name=root --vgname=cs
logvol swap --fstype="swap" --size=5120 --name=swap --vgname=cs

# system timezone
timezone Asia/Tokyo --isUtc

# root password
rootpw --iscrypted $6$WRwalxY/5EpHO0DI$qVymqI.....
# for other user settings if adding
user --name=cent --password=$6$WRwalxY/5EpHO0DI$qVymqI..... --iscrypted --gecos="cent"

# enable Kdump
%addon com_redhat_kdump --enable --reserve-mb='auto'
%end

[root@dlp ~]#

chmod 644 /var/www/html/ks/centos-st8-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 Stream 8
  menu default
  kernel centos-st8/vmlinuz
  append initrd=centos-st8/initrd.img ip=dhcp inst.ks=http://10.0.0.30/ks/centos-st8-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/centos-st8-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. Following screen is the state after finishing installation and restarting automatically.

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