#!/bin/bash

LFSMOUNT=$1

if [ ! "$LFSMOUNT" ]; then
	cat << EOF
Usage:
  $(basename $0) <path to install>
  
Example:
  $(basename $0) /mnt/lfs
  
Note:
  You should first configure partition then mount it somewhere
  
EOF
	exit 1
fi

if ! mountpoint -q $LFSMOUNT; then
	echo "'$LFSMOUNT' is not a mountpoint!"
	exit 1
fi

if [ -f "/run/initramfs/ram/root.sfs" ]; then
	ROOTSFS="/run/initramfs/ram/root.sfs"
elif [ -f "/run/initramfs/medium/lfs/root.sfs" ]; then
	ROOTSFS="/run/initramfs/medium/lfs/root.sfs"
else
	echo "squashed image not found!"
	exit 1
fi

unsquashfs -f -i -d $LFSMOUNT $ROOTSFS

if [ "$?" = "0" ]; then
	echo
	echo "Successfully installed to '$LFSMOUNT'"
	echo
	echo "Run 'lfs-chroot $LFSMOUNT' to chroot into $LFSMOUNT."
	echo "Then start configure your new installation."
else
	echo "failed to install lfs system"
	exit 1
fi

exit 0