So as promised I’ve copied the kickstart which I used to deploy our lab. Some options are default, others are not. Also I’ve added all the references that I used during the creation of the script. Options defined between [] are variables used in the sub template part of UDA. Before scrolling down to the deployment script I think you ought to look at the sub template part. This can save you loads and loads of time. Personally, I think creating such a script is loads of fun. You can configure almost anything you want and in the end all ESX servers will be identical. One of the benefits for me is that there is less change to make any mistakes during a manual installation 
Back to the scripting part. Although you probably will notice that the sub template is just partial, I think you will get the idea.
The sub template:
SUBTEMPLATE;IPADDR;HOSTNAME;FQDN;SUBNET;GW;DNS;
INSTALL_ESX01;192.168.255.11;ESX01;ESX01.domain.com;255.255.255.0;192.168.255.254;192.168.255.1;
INSTALL_ESX02;192.168.255.12;ESX02;ESX02.domain.com;255.255.255.0;192.168.255.254;192.168.255.1;
And the Kickstart Script:
[sourcecode language="plain"]
# VMware ESX4 template Kickstart file
# Installation Method
install url <a href="http://[UDA_IPADDR]/[OS]/[FLAVOR]">http://[UDA_IPADDR]/[OS]/[FLAVOR]</a>
# root Password
rootpw EnteryourPasswordHere
# Authconfig
auth –enableshadow –enablemd5
# BootLoader ( The user has to use grub by default )
bootloader –location=mbr
# Timezone
timezone Europe/Amsterdam
# Network install type
# This defines our final static IP on the vswif0 management interface of vmnic0 (aka the Service Console) and addvmportgroup=0 disables the default VM network creation.
network –device=vmnic0 –bootproto=static –ip=[IPADDR] –netmask=[SUBNET] –gateway=[GW] –nameserver=[DNS] –hostname=[FQDN] –addvmportgroup=0
# Keyboard
keyboard us
# Reboot after install ?
reboot
# Firewall from the installer itself will be disabled
firewall –disabled
# Clear Partitions
clearpart –overwritevmfs –firstdisk=local –all
# Either choose autopartitioning
# autopart –disk=[DISKTYPE]
# Or do the partitioning yourself
echo "Configuring Partitions"
part /boot –fstype=ext3 –size=250 –onfirstdisk=local
part local_[HOSTNAME] –fstype=vmfs3 –size=9000 –onfirstdisk=local –grow
part None –fstype=vmkcore –size=250 –onfirstdisk=local
virtualdisk cos –size=7500 –onvmfs=local_[HOSTNAME]
part / –fstype=ext3 –size=3000 –onvirtualdisk=cos –grow
part swap –fstype=swap –size=1000 –onvirtualdisk=cos
part /opt –fstype=ext3 –size=1000 –onvirtualdisk=cos
part /tmp –fstype=ext3 –size=1000 –onvirtualdisk=cos
part /home –fstype=ext3 –size=1000 –onvirtualdisk=cos
# VMware Specific Commands
vmaccepteula
%packages
%post –interpreter=bash
## —————- References —————————–
## <a href="http://www.vmware.com/pdf/vi3_35/esx_3/r35u2/vi3_35_25_u2_installation_guide.pdf">http://www.vmware.com/pdf/vi3_35/esx_3/r35u2/vi3_35_25_u2_installation_guide.pdf</a>
## <a href="http://www.vmware.com/pdf/vsphere4/r40/vsp_40_esx_vc_installation_guide.pdf">http://www.vmware.com/pdf/vsphere4/r40/vsp_40_esx_vc_installation_guide.pdf</a>
## <a href="http://www.vmware.com/pdf/vsphere4/r40/vsp_40_esx_server_config.pdf">http://www.vmware.com/pdf/vsphere4/r40/vsp_40_esx_server_config.pdf</a>
## <a href="http://www.jume.nl/articles/vmware/125-following-the-uda-20-beta-found-workarounds">http://www.jume.nl/articles/vmware/125-following-the-uda-20-beta-found-workarounds</a>
## <a href="http://www.dailyhypervisor.com/2009/03/23/automated-deployment-of-esx-hosts-part-iii/">http://www.dailyhypervisor.com/2009/03/23/automated-deployment-of-esx-hosts-part-iii/</a>
## <a href="http://vmware-land.com/esxcfg-help.html">http://vmware-land.com/esxcfg-help.html</a>
## <a href="http://www.l4l.be/index.php/virtualisatie/40-vmware/157-esx35-kickstart">http://www.l4l.be/index.php/virtualisatie/40-vmware/157-esx35-kickstart</a>
## <a href="http://www.vreference.com/2010/01/14/ad-and-sudo-integratation-in-kickstart/">http://www.vreference.com/2010/01/14/ad-and-sudo-integratation-in-kickstart/</a>
## ———————————————————
## Create one time only script which kicks in after reboot for networking part
touch /etc/default/esxcfg.sh
chmod 777 /etc/default/esxcfg.sh
cat > /etc/default/esxcfg.sh <<EOF
#!/bin/sh
# wait a couple of minutes to make sure that the
# hostd-daemon is started
sleep 2m
## Adding the VMkernel/VMotion port group to vSwitch0
echo "Configuring the VMkernel/VMotion port group"
/usr/sbin/esxcfg-vswitch -A VMotion vSwitch0
/usr/sbin/esxcfg-vmknic –add –ip [VMOTIONIP] –netmask [VMOTIONSUB] VMotion
/usr/sbin/esxcfg-route [VMOTIONGW]
## Wait a couple of seconds to give ESX the time to create the vmknic
sleep 10s
/usr/bin/vmware-vim-cmd hostsvc/vmotion/vnic_set vmk0
/usr/bin/vmware-vim-cmd internalsvc/refresh_network
EOF
# runonce script
cp /etc/rc.d/rc.local /etc/rc.d/rc.local.bak
cat >> /etc/rc.d/rc.local <<EOF3
/etc/default/esxcfg.sh
mv -f /etc/rc.d/rc.local.bak /etc/rc.d/rc.local
EOF3
## ——————————————————-
## —– the rest of the script which can run directly —
## ——————————————————-
## Give new accounts the path variables to run esxcfg commands without the need to find the correct path
cat >> /etc/skel/.bash_profile <<EOF
# .bash_profile
# Get the aliases and functions
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi
# User specific environment and startup programs
PATH=$PATH:$HOME/bin:/usr/local/sbin:/sbin:/usr/sbin:$HOME/bin”
export PATH
unset USERNAME
EOF
## ——————————————————–
## ——————————————————–
## ——————————————————–
# Configure Active Directory authentication (change both domains to yours)
esxcfg-auth –enablead –addomain=domain.com –addc=domain.com
# Add active directory users to the local database
/usr/sbin/useradd ADuser1 -c "Full user name" -m
/usr/sbin/useradd ADuser2 -c "Full user name" -m
/usr/sbin/useradd ADuser3 -c "Full user name" -m
# Additional DNS configuration when IP’s are known.
echo nameserver 10.0.0.0 >> /etc/resolv.conf
## ——————————————————–
## ——————————————————–
## ——————————————————–
## Adding the local users to groups
/usr/sbin/usermod -G wheel ADuser1
/usr/sbin/usermod -G wheel ADuser2
/usr/sbin/usermod -G wheel ADuser3
## Adding SUDO rights to the users
cat >> /etc/sudoers << SUDO
root ALL=(ALL) ALL
## Allows people in group wheel to run all commands
%wheel ALL=(ALL) ALL
SUDO
## Configuring NTP services
# Backup ntpd.conf and step-tickers file
mv /etc/ntpd.conf /etc/ntpd.conf.bak
mv /etc/ntpd/step-tickers /etc/ntpd/step-tickers.bak
# Add Servers to step-tickers
cat > /ect/ntp/step-tickers <<EOF
dc01.domain.com
dc02.domain.com
# create ntp.conf
EOF
cat > /etc/ntp.conf << EOF
restrict 127.0.0.1
restrict dc01.domain.com mask 255.255.255.255 nomodify notrap noquery
restrict dc02.domain.com mask 255.255.255.255 nomodify notrap noquery
server dc01.domain.com
server dc02.domain.com
driftfile /var/lib/ntp/drift
EOF
# Service restart
service ntpd restart
# Make ntp start at boot time
chkconfig –level 345 ntpd on
# Sync hardware clock
hwclock -–systohc
## Automatically enable and starts the webservices preventing 503 errors using the web browser
## This because the web service is per default disabled
/sbin/chkconfig –level 345 vmware-webAccess on
service vmware-webAccess restart
## Firewall configuration
/usr/sbin/esxcfg-firewall –enableService webAccess
/usr/sbin/esxcfg-firewall –enableService sshClient
/usr/sbin/esxcfg-firewall –enableService ntpClient
/usr/sbin/esxcfg-firewall –openport 88,tcp,out,KerberosClientTCP
/usr/sbin/esxcfg-firewall –openport 53,tcp,out,dns
## Adding illegal notice warning during SSH login
touch /etc/default/banner
chmod 777 /etc/default/banner
cat > /etc/default/banner << EOF
********************************************************************************
This is a private system.
Do not attempt to login unless you are an authorized user.
Any authorized or unauthorized access and use, may be monitored
and can result in criminal or civil prosecution under applicable
law of The Netherlands
********************************************************************************
EOF
chmod 755 /etc/default/banner
echo Banner /etc/default/banner >> /etc/ssh/sshd_config
[/sourcecode]