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#!/bin/bash 

# VMware ESXi 4.0.0 ISO patch script 20090704 
# - integrates 3ware 9650SE driver 
# - integrates better wget and rsync from vm-help.com 
# - activates unsupported (!!) SSH server 
# 
# by Philipp Wollermann <philipp@igowo.de> 
# uses ideas from Varazirs mkesxiaio.sh: http://varazir.mine.nu/esxi/ 

# Requirements: 
# 
# tested with Ubuntu Linux 8.04 
# please do "apt-get install unzip bzip2 mkisofs" 

# Usage: 
# 
# 1) Get the following files and put them in a directory with this shell script: 
# 
# VMware-VMvisor-Installer-4.0.0-171294.x86_64.iso 
# (-> https://www.vmware.com/go/get-free-esxi/) 
# 
# ESX_ESXi_4.0_driver-GUID78f4117c3d57443485d1c9c989d80909.iso 
# (-> http://www.3ware.com/KB/article.aspx?id=15548) 
# 
# simple.map (you can extract that from an installed ESXi 4.0, see below) 
# 
# 2) Start the script from the directory where you placed all the files. 

# Hint: 
# 
# I don't know if the simple.map can be redistributed, so for now you have to 
# extract it yourself: 
# 
# Get VMware Workstation or Fusion (something else like VirtualBox may also work) 
# Install ESXi as a virtual machine (see http://communities.vmware.com/docs/DOC-6590) 
# When the install is finished and you see the yellow management screen, press Alt-F1 
# Enter "unsupported", press ENTER, when asked for a password, just press ENTER 
# Copy the simple.map to your Linux workstation using: 
# 
# scp /etc/vmware/simple.map 123.123.123.123:/root 

# Todo: 
# 
# - Find out how to unpack the sys.vgz files, so the simple.map can be extracted 
#   automatically. 

set -e 
set -u 

RPWD=`pwd` 

# Check if the script is run as a super-user 
if [ ! $( id -u ) -eq 0 ]; then 
  echo "Must have super-user rights to run this script." 
  exit 0 
fi 

# Clean-up 
echo "Preparing ..." 
umount esx-cd || /bin/true 
umount esx-dd || /bin/true 
umount esx-3ware || /bin/true 
rm -f ESXi-custom.iso 
rm -rf $RPWD/esx-cd $RPWD/esx-build $RPWD/esx-oem $RPWD/esx-image $RPWD/esx-dd $RPWD/esx-3ware $RPWD/esx-3ware-unzip 

# Create folders 
mkdir -p $RPWD/esx-cd $RPWD/esx-build $RPWD/esx-oem $RPWD/esx-image $RPWD/esx-dd $RPWD/esx-3ware $RPWD/esx-3ware-unzip 

# Copy files from ISO 
echo "Extracting ISO ..." 
mount -o loop VMware-VMvisor-Installer-4.0.0-171294.x86_64.iso $RPWD/esx-cd 
cp -a $RPWD/esx-cd/* $RPWD/esx-build/ 
umount $RPWD/esx-cd 

# Unzip 3ware driver 
mount -o loop ESX_ESXi_4.0_driver-GUID78f4117c3d57443485d1c9c989d80909.iso $RPWD/esx-3ware 
cd $RPWD/esx-3ware-unzip 
unzip $RPWD/esx-3ware/offline-bundle/offline-bundle.zip 
umount $RPWD/esx-3ware 

ar x vmware-esx-drivers-scsi-3w-9xxx-400.2.26.08.035vm40-1.0.4.00000.x86_64.vib 
tar xfz data.tar.gz 

# Create oem.tgz staging folder 
echo "Creating oem.tgz staging area ..." 
mkdir -p $RPWD/esx-oem/etc/vmware $RPWD/esx-oem/bin $RPWD/esx-oem/usr/lib/vmware/vmkmod 

# Create new inetd.conf with enabled SSH 
echo "Creating new inetd.conf ..." 
cat > $RPWD/esx-oem/etc/inetd.conf <<'EOF' 
# Remote shell access 
# 
ssh     stream  tcp     nowait  root    /sbin/dropbearmulti dropbear  ++min=0,swap,group=shell -i -K60 
ssh     stream  tcp6    nowait  root    /sbin/dropbearmulti dropbear  ++min=0,swap,group=shell -i -K60 

# VMware authentication daemon 
# 
authd   stream  tcp     nowait  root    /sbin/authd  authd 
authd   stream  tcp6    nowait  root    /sbin/authd  authd 
EOF 

# Create new simple.map with support for 3ware controllers ... 
echo "Creating new simple.map ..." 
cp $RPWD/simple.map $RPWD/esx-oem/etc/vmware/simple.map 
echo "13c1:1004 0000:0000 storage 3w-9xxx.o" >> $RPWD/esx-oem/etc/vmware/simple.map 

# Copy 3ware driver into vmkmod directory ... 
echo "Copying 3w-9xxx.o driver ..." 
cp $RPWD/esx-3ware-unzip/usr/lib/vmware/vmkmod/3w-9xxx.o $RPWD/esx-oem/usr/lib/vmware/vmkmod/ 

# Download wget and rsync package if not already downloaded 
cd $RPWD 
if [ ! -e SSH_FTP_oem_1.3.tgz ]; then 
  echo "Downloading wget/rsync from vm-help.com ..." 
  wget -q http://www.vm-help.com/esx/esx3i/Cus...TP_oem_1.3.tgz 
fi 

# Extract wget and rsync 
echo "Integrating wget and rsync ..." 
cd $RPWD/esx-oem 
tar xfz $RPWD/SSH_FTP_oem_1.3.tgz bin/wget bin/rsync 

# Build oem.tgz 
echo "Building oem.tgz ..." 
cd $RPWD/esx-oem 
tar czf $RPWD/esx-build/oem.tgz * 

# Add oem.tgz to isolinux.cfg 
echo "Patching isolinux.cfg ..." 
sed -i 's/install.tgz/install.tgz --- oem.tgz/g' $RPWD/esx-build/isolinux.cfg 

# Extract & delete the image 
echo "Extracting image ..." 
tar -xzf $RPWD/esx-build/image.tgz -C $RPWD/esx-image 
rm $RPWD/esx-build/image.tgz 

# Unpack the compressed DD file 
echo "Unpacking dd file ..." 
cd $RPWD/esx-image/usr/lib/vmware/installer/ 
esx_ddf=(*.bz2) 
bunzip2 ${esx_ddf[0]} 
esx_ddf=(*.dd) 

# Check the number of sectors 
esx_sector=$(fdisk -ul ${esx_ddf[0]} 2>>/dev/null | awk '/bytes/ {print $9}') 

# Check where the 5th partition starts 
esx_number=$(fdisk -ul ${esx_ddf[0]} 2>>/dev/null | awk '/dd5/ {print $2}') 

# Calculate offset of 5th partition in dd file 
esx_offset=$(($esx_sector*$esx_number)) 

# Mounting the 5th partition of the DD file to esx-dd 
echo "Mounting 5th partition of the DD file (offset: $esx_offset) ..." 
mount -o loop,offset=$(($esx_sector*$esx_number)) $esx_ddf $RPWD/esx-dd/ 

# Copy the custom oem file to the mounted dd file 
echo "Copying oem.tgz into dd file ..." 
cp $RPWD/esx-build/oem.tgz $RPWD/esx-dd/oem.tgz 

# Unmount the dd file 
umount $RPWD/esx-dd 

# Compressing the dd file 
echo "Compressing dd file ..." 
bzip2 -9 $esx_ddf 

# Rebuilding image.tgz 
echo "Rebuilding image ..." 
cd $RPWD/esx-image 
tar czf $RPWD/esx-build/image.tgz * 

echo "Building new ISO ..." 

# Build new ISO 
cd $RPWD/esx-build 
mkisofs -o $RPWD/ESXi-custom.iso -b isolinux.bin -c boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -input-charset utf-8 ../esx-build 

rm -rf $RPWD/esx-cd $RPWD/esx-build $RPWD/esx-oem $RPWD/esx-image $RPWD/esx-dd $RPWD/esx-3ware $RPWD/esx-3ware-unzip 

echo "Finished!" 
exit 0