Fully Automated CentOS7 Install

Alex Sage

Here is my kickstart file:

#version=DEVEL
# System authorization information
auth --enableshadow --passalgo=sha512
# Use CDROM installation media
cdrom
# Use text mode install
text
# Only Use SDA
ignoredisk --only-use=sda
# Keyboard layouts
keyboard --vckeymap=us --xlayouts='us'
# System language
lang en_US.UTF-8

# Network information
network  --bootproto=dhcp --device=enp0s3 --ipv6=auto --activate
network  --hostname=localhost.localdomain

# Root password
rootpw --plaintext root
# System timezone
timezone America/New_York --isUtc
# System bootloader configuration
bootloader --append=" crashkernel=auto" --location=mbr --boot-drive=sda
autopart --type=lvm
# Partition clearing information
clearpart --none --initlabel
# Reboot after installation
reboot

%packages
@^minimal
@core
kexec-tools

%end

%addon com_redhat_kdump --enable --reserve-mb='auto'

%end

Save as ks.cfg

When you boot into the CentOS7 minimal CD press press TAB and erase what’s in there and type:

vmlinuz initrd=initrd.cfg ks=http://YOURDOMAIN/ks.cfg

scottalanmiller

Nice. Haven't used KS since I was at the bank. We built everything that way back then.

Alex Sage

My next step is to setup the install via PXE.

Alex Sage

By default the firewall is off. I am thinking about enabling it via the kickstart file and only allowing SSH? What do you guys think?

scottalanmiller

Good idea. Off by default is very bad.

Alex Sage

@scottalanmiller said:

Good idea. Off by default is very bad.

Then why do they do that? =P

JaredBusch

@anonymous said:

@scottalanmiller said:

Good idea. Off by default is very bad.

Then why do they do that? =P

The CentOS 7 firewall is not off by default on a minimal install.