#!/bin/sh

set -e

# base-installer bind mounts /target/dev on /dev/.static/dev
# unmount if mounted on same device as /target
mp_stdev=$(grep -E '^[^ ]+ /dev/\.static/dev' /proc/mounts | cut -d" " -f1)
if [ "$mp_stdev" ] && grep -q "^$mp_stdev /target" /proc/mounts; then
	umount /dev/.static/dev
fi

cat /proc/mounts |
	while read dev dir type options dump pass; do
		echo $dir
	done |
	grep '^/target' |
	sort |
	{
		# We miss the option -r of sort
		dirs=''
		while read dir; do
		dirs="$dir
$dirs"
		done
		echo -n "$dirs"
	} |
	while read dir; do
		umount $dir
	done