#!/bin/bash

# Clone our OS disk to sdb only if it is the same size as sda
# Same for sdc

# sdb1 (and sdc1) must already be formatted

echo "sdb1 not mounted error message is normal..."

if [[ "`cat /sys/block/sda/size`" == "`cat /sys/block/sdb/size`" ]]; then
  umount /dev/sdb1
  mkdir -p /mnt/sdb1
  mount /dev/sdb1 /mnt/sdb1
  rsync -avx --exclude '/boot' --exclude 'PARTITIONTABLE.img' --delete / /mnt/sdb1/
  rsync -avx --delete /boot/ /mnt/sdb1/boot/
  dd if=/dev/sda bs=512 count=1 of=/mnt/sdb1/PARTITIONTABLE.img 
  umount /dev/sdb1
fi

if [[ "`cat /sys/block/sda/size`" == "`cat /sys/block/sdc/size`" ]]; then
  umount /dev/sdc1
  mkdir -p /mnt/sdc1
  mount /dev/sdc1 /mnt/sdc1
  rsync -avx --exclude '/boot' --exclude 'PARTITIONTABLE.img' --delete / /mnt/sdc1/
  rsync -avx --delete /boot/ /mnt/sdc1/boot/
  dd if=/dev/sda bs=512 count=1 of=/mnt/sdc1/PARTITIONTABLE.img
  umount /dev/sdc1
fi