RHEL7 installation Kickstart File

I have made Kickstart (Auto Answer File) Using Kcikstart configuration generator tool with LVM partitioning included

[root@ArkIT ~]#cat ks.cfg
#platform=x86, AMD64, or Intel EM64T
#version=DEVEL
# Install OS instead of upgrade
install
# Keyboard layouts
keyboard 'us'# Reboot after installation
reboot
# Root password
rootpw --iscrypted $1$tS7oWXXF$X.HS5njtcfPpxHgW9pFtX.
# System timezone
timezone Africa/Abidjan
# Use network installation
url --url="http://192.168.4.27/rhel7"
# System language
lang en_US
# Firewall configuration
firewall --disabled
# Network information
network  --bootproto=dhcp --device=eth0
# System authorization information
auth  --useshadow  --passalgo=sha512
# Use graphical install
graphical
# Run the Setup Agent on first boot
firstboot --enable
# SELinux configuration
selinux --disabled

# System bootloader configuration
bootloader --location=mbr
# Clear the Master Boot Record
zerombr
# Partition clearing information
clearpart --all --initlabel
volgroup rhel --pesize=4096 PV0
part PV0 --fstype=lvmpv --ondisk=sda --size=50000
part /boot --fstype=xfs --size=500
logvol / --vgname=rhel --name=root --fstype=xfs --size=10000
logvol /var --vgname=rhel --name=var --fstype=xfs --size=8000
logvol swap --vgname=rhel --name=swap --fstype=swap --size=8000
logvol /home --vgname=rhel --name=home --fstype=xfs --size=7000
logvol /usr --vgname=rhel --name=usr --fstype=xfs --size=7000

%packages
@base
@core
@desktop-debugging
@dial-up
@fonts
@gnome-desktop
@guest-agents
@guest-desktop-agents
@input-methods
@internet-browser
@mariadb
@multimedia
@print-client
@x11
kexec-tools

%end

%post
useradd ravi
echo password | passwd ravi
%end