#!/bin/bash

# Create new disk label
# parted -s /dev/${NEWDRIVE} mklabel msdos

# Before running this the new drive must have a dos partition table installed
# Just run fdisk and hit "w" to write a new one.

# calculate maximum drive size
MAX=$(parted -s /dev/${NEWDRIVE} print | awk '/megabytes/ {print $5}' | cut -d "-" -f 2)


echo $MAX

# Create partitions
#
parted -s /dev/${NEWDRIVE} mkpart primary 0 1024
parted -s /dev/${NEWDRIVE} mkpart primary 1024 11264
parted -s /dev/${NEWDRIVE} mkpartfs primary linux-swap 11264 15360
parted -s /dev/${NEWDRIVE} mkpart extended 15360 $MAX

parted -s /dev/${NEWDRIVE} mkpart logical 15360 25600
parted -s /dev/${NEWDRIVE} mkpart logical 25600 27648
parted -s /dev/${NEWDRIVE} mkpart logical 27648 29696
parted -s /dev/${NEWDRIVE} mkpart logical 29696 $MAX

# Create mount points
mkdir /mnt/${NEWDRIVE}{1,2,5,6,7,8}

# Create file systems
PARTS="1 2 5 6 7 8"
for part in $PARTS; do mkfs -t ext3 /dev/${NEWDRIVE}${part}; done

# Mount them
for part in $PARTS; do mount -t ext3 /dev/${NEWDRIVE}${part} /mnt/${NEWDRIVE}${part}; done

# Transfer each partition
cd /mnt/${NEWDRIVE}1
dump -0uan -f - /boot | restore -r -f -
cd /mnt/${NEWDRIVE}2
dump -0uan -f - /usr | restore -r -f -
cd /mnt/${NEWDRIVE}5
dump -0uan -f - /var | restore -r -f -
cd /mnt/${NEWDRIVE}6
dump -0uan -f - /tmp | restore -r -f -
cd /mnt/${NEWDRIVE}7
dump -0uan -f - / | restore -r -f -
cd /mnt/${NEWDRIVE}8
dump -0uan -f - /home | restore -r -f -

# Apply labels
e2label /dev/${NEWDRIVE}1 /boot
e2label /dev/${NEWDRIVE}2 /usr
e2label /dev/${NEWDRIVE}5 /var
e2label /dev/${NEWDRIVE}6 /tmp
e2label /dev/${NEWDRIVE}7 /
e2label /dev/${NEWDRIVE}8 /home

e2label /dev/${OLDDRIVE}1 /boot-old
e2label /dev/${OLDDRIVE}2 /usr-old
e2label /dev/${OLDDRIVE}5 /var-old
e2label /dev/${OLDDRIVE}6 /tmp-old
e2label /dev/${OLDDRIVE}7 /-old
e2label /dev/${OLDDRIVE}8 /home-old

echo "Dumping file systems done, please make sure fstab is correct and reinstall grub."

echo "grub --no-floppy"
echo "root (hd1,0)"
echo "setup (hd1)"