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#!/bin/sh

# Copyright (c) 2010 The Chromium OS Authors. All rights reserved.

# Use of this source code is governed by a BSD-style license that can be

# found in the LICENSE file.

#

# Force cleans loopback devices from within your chroot environment. This

# script is to help mitigate losing loopback devices on build_images

# failures. This script only affects mountpoints and loopback devices

# that were created within this chroot.

SCRIPT_ROOT=$(dirname $(readlink -f "$0"))

. "${SCRIPT_ROOT}/common.sh" || exit 1

# Script must be run inside the chroot.

assert_inside_chroot

DEFINE_string output_root "$DEFAULT_BUILD_ROOT/images" \

"Directory in which to place image result directories (named by version)"

DEFINE_string board "$DEFAULT_BOARD" \

"The board to build an image for."

# Parse command line.

FLAGS "$@" || exit 1

eval set -- "${FLAGS_ARGV}"

if [[ -z "${FLAGS_board}" ]]; then

error "--board is required."

exit 1

fi

OUTPUT_DIR="${FLAGS_output_root}/${FLAGS_board}"

echo 'This will unmount all directories matching /tmp/esp.*'

echo "and any directory under $OUTPUT_DIR"

read -p "Are you sure (y/N)? " SURE

SURE="${SURE:0:1}" # Get just the first character

if [ "${SURE}" != "y" ]; then

echo "Ok, better safe than sorry."

exit 1

fi

safe_umount "$OUTPUT_DIR"/*/* 2> /dev/null

safe_umount /tmp/esp.* 2> /dev/null

sudo losetup -d /dev/loop* 2> /dev/null