pre-chroot

#!/bin/bash
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# This Program is still under heavy development, so use it with wise

if [ "$EUID" != '0' ]; then
	echo 'error: this script must be run as root.'
	exit 1
fi

chroot_lock="/mnt/terra-chroot"
box_code="14096167"
dev_binary="terra-devel.tar.xz"

echo "  Please prepare your partition before do this"
echo "==============================================="
echo "[+] Prepare your partition for working env  [+]"
echo "[+] Noticeable size is arround 10GiB - 20GiB[+]"
echo "[+]-----------------------------------------[+]"
echo "[+]       Terralinux Pre-Chroot Script      [+]"
echo "[+]     Setting up Chroot environment...    [+]"
echo "[+] this will created a working dir in /mnt [+]"
echo "[+]=========================================[+]"
echo "[+]=========================================[+]"
echo "[+]       Downloading binary package        [+]"
echo "-----------------------------------------------"

mkdir -p ${chroot_lock}/{etc,dev,proc,sys,tmp,var}

chmod 1777 ${chroot_lock}/tmp

cd ${chroot_lock}

wget -c http://dl.dropbox.com/u/${box_code}/${dev_binary}
wget -c http://dl.dropbox.com/u/${box_code}/sha256sum.txt

echo "[+]		    Checking Integrity			   [+]"

sha256sum -c sha256sum.txt

echo "[+]           Extracting Binary              [+]"

tar -xpf ${dev_binary} 

echo "[+] 		Binding all related stuff		   [+]"

cp -Lv /etc/resolv.conf ${chroot_lock}/etc/
cp -Lv /etc/hosts ${chroot_lock}/etc/
cp -Lv /etc/fstab ${chroot_lock}/etc/
cp -Lv /etc/mtab ${chroot_lock}/etc/

mount -B /dev ${chroot_lock}/dev
mount -B /dev/pts ${chroot_lock}/dev/pts
mount -t sysfs /sys ${chroot_lock}/sys
mount -t proc /proc ${chroot_lock}/proc

echo "[+]-------------------------------------------[+]"
echo "[+] 		Entering Chroot						[+]"
echo "[+]     Once you have finish, type \"exit\"   [+]"
echo "[+]   don't forget run $ source /etc/profile  [+]"
echo "[+]===========================================[+]"

chroot ${chroot_lock}

echo "[+]        Exited chroot environemnt          [+]"

cd /

echo "[+] Backup the binary"
cp -v ${chroot_lock}/${dev_binary} $HOME/

rm -rf ${chroot_lock}/etc/{fstab,mtab}

echo "[+] Umount all related stuff"
umount ${chroot_lock}/{dev/pts,dev,proc,sys}

clear
echo "[+] Don't Forget to remove all stuff inside /mnt/terra-chroot"

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