Lewiscowles1986/rPiJessie4GB-p1.sh

## rPiJessie4GB-p1.sh
#!/bin/bash

# Root Check
if [[ $EUID -ne 0 ]]; then
	echo "This script must be run as root"
	exit 1
fi

# Get rid of Wolfram
sudo apt-get purge wolfram-engine

# Get rid of Libreoffice :`[
sudo apt-get purge libreoffice*
sudo apt-get purge libreoffice-base libreoffice-impress libreoffice-writer libreoffice-calc libreoffice-draw libreoffice-math

# Clean up a bit
apt-get clean
apt-get autoremove

echo "We are now going to power off your Pi, you'll need another PC for the next bit\r\n"
echo "Press CTRL+C to cancel at this point\r\n"
pause
poweroff

## rPiJessie4GB-p2.sh
#!/bin/bash

# Root Check
if [[ $EUID -ne 0 ]]; then
	echo "This script must be run as root"
	exit 1
fi

if [[ -z "$1" ]]; then
    echo "No valid arguments supplied, argument 1 must be block device"
fi

DEVICE = $1

sudo e2fsck -f ${DEVICE}
sudo resize2fs ${DEVICE} 3500M

# Fdisk delete partition 2, then create a new partition 2 from 122880 - 7710719 (figures from http://richardhayler.blogspot.co.uk/2015/10/squeezing-raspbian-jessie-on-to-4gb-sd.html)
fdisk -u -p ${DEVICE} <<EOF
d
2
n
p
2
122880
7710719

w
EOF

echo "We are now going to power down, check your 8GB card still boots (if it doesn't something is wrong)\r\n"
echo "If it reboots, then proceed to the next stage...\r\n"
echo "Press CTRL+C to cancel poweroff at this point\r\n"
pause
poweroff

## rPiJessie4GB-p3.sh
#!/bin/bash

# Root Check
if [[ $EUID -ne 0 ]]; then
	echo "This script must be run as root"
	exit 1
fi

echo "What is the path to the 8GB memory Card?\r\n"
read MEMCARD8

mkdir -p ~/tmp
dd if=${MEMCARD8} of=~/tmp/image4GB-p1.img
dd if=${MEMCARD8} of=~/tmp/image4GB-p2.img

echo "Backed up 8GB, please take this time to eject the 8GB and replace with the 4GB"
pause


echo "What is the path to the 4GB memory Card?\r\n"
read MEMCARD4

dd if=~/tmp/image4GB-p1.img of=${MEMCARD4}
dd if=~/tmp/image4GB-p2.img of=${MEMCARD4}

echo "All done; we should be able to let you power-down, switch to the 4GB memory card, and run Jessie on your rPi\r\n"
	#!/bin/bash

	# Root Check
	if [[ $EUID -ne 0 ]]; then
	echo "This script must be run as root"
	exit 1
	fi

	# Get rid of Wolfram
	sudo apt-get purge wolfram-engine

	# Get rid of Libreoffice :`[
	sudo apt-get purge libreoffice*
	sudo apt-get purge libreoffice-base libreoffice-impress libreoffice-writer libreoffice-calc libreoffice-draw libreoffice-math

	# Clean up a bit
	apt-get clean
	apt-get autoremove

	echo "We are now going to power off your Pi, you'll need another PC for the next bit\r\n"
	echo "Press CTRL+C to cancel at this point\r\n"
	pause
	poweroff