parted

#!/bin/bash
#[[ $EUID != 0 ]] && echo "You must run as root !" && exit 1

echo "This's script maybe erase your data. Please backup your data before using it !"

echo "Enter your device: "
read -t 30  dev_

echo "Are you sure to use device: $dev_ ? [y/n]"
read ans
if [ $ans = "n" ] ; then
	echo "aborted installation"
	exit 1
fi

#dd image to device
echo "Please enter path to iso file of installation"
read path

echo "installation's running."

#dd if=/dev/zero of=$dev_ || echo "Device's not found" && exit 1
dd if=$path of=$dev_ bs=4M || echo "Device or file's not found"

# make persistent and data partition
echo "Making partions"

echo -e "n \np \n2 \n \n+200M \nn \np \n3 \n \n \nwq" > part
fdisk $dev_ < part
rm part

# make filesystem and label of persistent

mkfs.ext2 ${dev_}2
e2label ${dev_}2 Persistent

mkfs.ext3 ${dev_}3
e2label ${dev_}3 DATA

echo "Making encrypted partition"
# make encrypt partitions

cryptsetup --cipher aes-xts-plain64 --key-size 512 --hash sha512 --iter-time 50000 --use-random --verify-passphrase luksFormat ${dev_}3

cryptsetup luksOpen ${dev_}3 data

mkfs.ext3 /dev/mapper/data

cryptsetup luksClose data

echo "Finished ! You can reboot and enjoy"