#!/bin/bash

# Please support the Radados linux project. http://www.Radados.org

# IPcop does not ship with RAID1 support. I like to use RAID1 for my firewalls because IPcop only needs about 5G to work and you cannot buy new hard drives that small.
# It is a waste to use a large hard drive when there are so many small older drives that would work just fine so if you use older drives RAID1 is a good idea.
# I used Radados linux for this but another live CD may work. The kernel must be recompiled and custom IPcop modules,
# like IP filters for h323 are missing because I tried many times to follow the IPcop directions to build the 
# IPcop source files but it dies with errors every time.
# I had to download and compile IPcop 1.4.20 from source to get a working kernel with RAID1. I am keeping a copy of that kernel on my server to use with this script.
# This script will download and save a copy of the RAID1 kernel to the local drive. 
# If you can, run this script from a USB thumb drive, it save time if you want to do this to another system.

# Steps
# 1) Install two IDE hard drives as HDA and HDB to your new firewall
# 2) Install IPcop 1.4.20 to the HDA (other versions of IPcop may need to adjust this script)
# 3) Reboot with a Radados live CD
# 4) At the Radados desktop press Ctrl+Alt+t for a terminal
# 5) Run [ sudo su ] to become root and then run this script

# This script will first look to see if you have a RAID1 enabled kernel in this directory already, if not it will try to download it.

# mount the new partitions and the old partitions and copy files over.
# I like to use tar to copy because I trust it better for preserving the files even in a busybox shell
mkdir /mnt/ipcop.root
mount /dev/hda4 /mnt/ipcop.root
mkdir /mnt/ipcop.boot
mount /dev/hda1 /mnt/ipcop.boot
mkdir /mnt/ipcop.var.log
mount /dev/hda2 /mnt/ipcop.var.log

IPCOP_VER="1.4.20"
ORIG_DIR=`pwd`
# KERNEL_VER=`ls -1 /mnt/ipcop.boot/vmlinuz*2*smp | cut -d\- -f2`
KERNEL_VER="2.4.36-smp"
rm -rf /mnt/ipcop.boot/vml*
rm -rf /mnt/ipcop.root/lib/modules/*

if [ ! -f "ipcop-1.4.20-kernel-2.4.36-smp-raid1.tbz" ]; then 
	wget http://www.SiliconTao.com/software/IPcop/ipcop-1.4.20-kernel-2.4.36-smp-raid1.tbz -O ipcop-1.4.20-kernel-2.4.36-smp-raid1.tbz
fi

dd if=/dev/zero of=/dev/hdb bs=4096
sfdisk -d /dev/hda | sed -e 's/Id=83/Id=fd/' | sfdisk -f /dev/hdb

# use cfdisk on hdb to change partitions to type FD (Linux RAID autodetect)
# RUN: 
mdadm --create /dev/md0 --run --level=1 --raid-devices=2 /dev/hdb1 missing
mdadm --create /dev/md1 --run --level=1 --raid-devices=2 /dev/hdb2 missing
mdadm --create /dev/md2 --run --level=1 --raid-devices=2 /dev/hdb4 missing
mkfs.ext3 /dev/md0
mkfs.ext3 /dev/md1
mkfs.ext3 /dev/md2

mkdir /mnt/ipcop.raid1
mount -o dev /dev/md1 /mnt/ipcop.raid1
cd /mnt/ipcop.root
tar cf - ./ | tar xvf - -C /mnt/ipcop.raid1

mount -o dev /dev/md0 /mnt/ipcop.raid1/boot
cd /mnt/ipcop.boot
tar cf - ./ | tar xvf - -C /mnt/ipcop.raid1/boot

mount -o dev /dev/md2 /mnt/ipcop.raid1/var/log
cd /mnt/ipcop.var.log
tar cf - ./ | tar xvf - -C /mnt/ipcop.raid1/var/log

cd "$ORIG_DIR"
tar xvfj ipcop-1.4.20-kernel-2.4.36-smp-raid1.tbz -C /mnt/ipcop.raid1/
chroot /mnt/ipcop.raid1/ depmod

# New IPcop will need some helper programs from Radados
touch /etc/lilo.conf
dpkg -i /cdrom/debian/installer_cd/dists/prospector/main/binary-i386/base/lilo_22.6.1-4_i386.deb
cp /sbin/mdadm /mnt/ipcop.raid1/sbin
cp /sbin/lilo /mnt/ipcop.raid1/sbin
cp /sbin/lilo.real /mnt/ipcop.raid1/sbin/
cp /lib/libdevmapper.so.1.00 /mnt/ipcop.raid1/lib/

# Write a lilo.conf file
cat > /mnt/ipcop.raid1/etc/lilo.conf << END
lba32
raid-extra-boot=/dev/hda,/dev/hdb
boot=/dev/md0
install=/boot/boot.b
backup=/dev/null
map=/boot/map
prompt
timeout=100
default=IPcop
image=/boot/vmlinuz-$KERNEL_VER
   append="lang=en apm=power-off quiet"
   # initrd=/boot/initrd-$KERNEL_VER.img
   root=/dev/md1
   vga=6
   label=IPcop
   read-only

END

# Something was using the ipcop mounts, wait for it to end
cd

# remove the original install and build back the RAID
ERROR=1
while [ $ERROR -ne 0 ]; do
	sleep 3	
	umount /mnt/ipcop.boot
	ERROR=$?
done

ERROR=1
while [ $ERROR -ne 0 ]; do
	sleep 3	
	umount /mnt/ipcop.var.log
	ERROR=$?
done

ERROR=1
while [ $ERROR -ne 0 ]; do
	sleep 3	
	umount /mnt/ipcop.root 
	ERROR=$?
done

# Don't need and initrd for this but I left the code incase it needs it in a future version of IPcop.
dd if=/dev/zero of=/dev/hda bs=4096
sfdisk -d /dev/hdb | sfdisk -f /dev/hda
sleep 2 
mdadm --add /dev/md0 /dev/hda1
sleep 2
mdadm --add /dev/md1 /dev/hda2
sleep 2
mdadm --add /dev/md2 /dev/hda4
sleep 2

cp -ra /dev/md? /mnt/ipcop.raid1/dev/

# Build a very minimal initrd image. 
IMAGE_SIZE=4096
dd if=/dev/zero of=/mnt/ipcop.raid1/raw_image bs=1k count=$IMAGE_SIZE
mkfs.ext2 -F -m 0 -i 1024 -q /mnt/ipcop.raid1/raw_image
mkdir ~/image_mnt
mount -o loop /mnt/ipcop.raid1/raw_image ~/image_mnt
mkdir ~/image_mnt/bin
mkdir ~/image_mnt/dev
mkdir ~/image_mnt/lib
mkdir ~/image_mnt/sbin

cp /mnt/ipcop.raid1/bin/bash ~/image_mnt/bin
cp /mnt/ipcop.raid1/sbin/mdadm ~/image_mnt/sbin
cp /mnt/ipcop.raid1/lib/libncurses.so.5 ~/image_mnt/lib
cp /mnt/ipcop.raid1/lib/libdl.so.2 ~/image_mnt/lib
cp /mnt/ipcop.raid1/lib/libc.so.6 ~/image_mnt/lib
cp /mnt/ipcop.raid1/lib/ld-linux.so.2 ~/image_mnt/lib

cp -ra /dev/md? ~/image_mnt/dev/
cp -ra /dev/tty ~/image_mnt/dev/
cp -ra /dev/tty? ~/image_mnt/dev/
cp -ra /dev/hd* ~/image_mnt/dev/
cp -ra /dev/sd* ~/image_mnt/dev/
cp -ra /dev/null ~/image_mnt/dev/
cp -ra /dev/zero ~/image_mnt/dev/
cp -ra /dev/mem ~/image_mnt/dev/
cp -ra /dev/ram* ~/image_mnt/dev/
cp -ra /dev/kmem ~/image_mnt/dev/
cp -ra /dev/initrd ~/image_mnt/dev/
cp -ra /dev/console ~/image_mnt/dev/
cp -ra /dev/core ~/image_mnt/dev/
cp -ra /dev/cloop* ~/image_mnt/dev/
cp -ra /dev/loop* ~/image_mnt/dev/
cp -ra /dev/lp* ~/image_mnt/dev/
cp -ra /dev/random ~/image_mnt/dev/
cp -ra /dev/std* ~/image_mnt/dev/

cat >  ~/image_mnt/linuxrc << END
#!/bin/bash

echo "IPcop with RAID1 initrd"
/sbin/mdadm --assemble /dev/md0 /dev/hda1 /dev/hdb1
/sbin/mdadm --assemble /dev/md1 /dev/hda2 /dev/hdb2
/sbin/mdadm --assemble /dev/md2 /dev/hda4 /dev/hdb4

END

chmod 755 ~/image_mnt/linuxrc

umount ~/image_mnt/
gzip -9 /mnt/ipcop.raid1/raw_image
mv /mnt/ipcop.raid1/raw_image.gz /mnt/ipcop.raid1/boot/initrd-$KERNEL_VER.img

chroot /mnt/ipcop.raid1/ lilo
if [ $? -ne 0 ]; then
	echo "Lilo failed, fix it"
	bash
fi

cat /mnt/ipcop.raid1/etc/fstab
echo "------------------------------------------"
cat /mnt/ipcop.raid1/etc/fstab | sed -e 's/^\/dev\/root/\/dev\/md1/' > /mnt/ipcop.raid1/etc/fstab.swp
cat /mnt/ipcop.raid1/etc/fstab.swp > /mnt/ipcop.raid1/etc/fstab
#cat /mnt/ipcop.raid1/etc/fstab
#echo "------------------------------------------"
cat /mnt/ipcop.raid1/etc/fstab | sed -e 's/^\/dev\/harddisk4/\/dev\/md1/' > /mnt/ipcop.raid1/etc/fstab.swp
cat /mnt/ipcop.raid1/etc/fstab.swp > /mnt/ipcop.raid1/etc/fstab
#cat /mnt/ipcop.raid1/etc/fstab
#echo "------------------------------------------"
cat /mnt/ipcop.raid1/etc/fstab | sed -e 's/^\/dev\/harddisk1/\/dev\/md0/' > /mnt/ipcop.raid1/etc/fstab.swp
cat /mnt/ipcop.raid1/etc/fstab.swp > /mnt/ipcop.raid1/etc/fstab
#cat /mnt/ipcop.raid1/etc/fstab
#echo "------------------------------------------"
cat /mnt/ipcop.raid1/etc/fstab | sed -e 's/^\/dev\/harddisk2/\/dev\/md2/' > /mnt/ipcop.raid1/etc/fstab.swp
cat /mnt/ipcop.raid1/etc/fstab.swp > /mnt/ipcop.raid1/etc/fstab

rm -rf /mnt/ipcop.raid1/dev/harddisk* /mnt/ipcop.raid1/dev/root

echo "Check the etc/fstab file"
cat /mnt/ipcop.raid1/etc/fstab

watch "echo Watch the RAID1 build, when done Ctrl+c to finish; cat /proc/mdstat"

echo "If all went well you should now be able to reboot"

umount /mnt/ipcop.raid1/boot
umount /mnt/ipcop.raid1/var/log
umount /mnt/ipcop.raid1