#!/bin/bash
if mount /dev/sda6 /mnt; then
	btrfs subvolume delete /mnt/home-rw
	if btrfs subvolume snapshot /mnt/home-ro /mnt/home-rw; then
		if umount /home; then
			if mount -o subvol=home-rw /dev/sda6 /home; then
				ret=0
			else
				ret=4
			fi
		else
			ret=3
		fi
	else
		ret=2
	fi
else
	ret=1
fi
umount /mnt
if [ $? -ne 0 ]; then
	ret=1"$ret"
fi

exit $ret