flatcar-scripts/create_esp.sh
Greg Spencer 798d75f3be This starts to fix the scripts so that they load from /usr/lib/crosutils
from within the chroot.

It also fixes a number of style issues.

It changes the meaning of cros_workon "list-all" to list all available
packages, and adds "list-live" to list all live packages.

It changes things that load chromeos-common.sh from the installer to
load it from /usr/lib/installer.

BUG=chromium-os:4230
TEST=synced, rebuilt chroot, made packages, made images, built chrome
from source, and wrote an image to a USB stick.

Review URL: http://codereview.chromium.org/6240018

Change-Id: I90c34420af1a64020402bafef8e9e77f56837c02
2011-02-01 22:04:49 -08:00

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#!/bin/bash
# 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.
# Creates an empty ESP image.
# --- BEGIN COMMON.SH BOILERPLATE ---
# Load common CrOS utilities. Inside the chroot this file is installed in
# /usr/lib/crosutils. Outside the chroot we find it relative to the script's
# location.
find_common_sh() {
local common_paths=(/usr/lib/crosutils $(dirname "$(readlink -f "$0")"))
local path
SCRIPT_ROOT=
for path in "${common_paths[@]}"; do
if [ -r "${path}/common.sh" ]; then
SCRIPT_ROOT=${path}
break
fi
done
}
find_common_sh
. "${SCRIPT_ROOT}/common.sh" || (echo "Unable to load common.sh" && exit 1)
# --- END COMMON.SH BOILERPLATE ---
get_default_board
# Flags.
DEFINE_string to "/tmp/esp.img" \
"Path to esp image (Default: /tmp/esp.img)"
# Parse flags
FLAGS "$@" || exit 1
eval set -- "${FLAGS_ARGV}"
set -e
if [[ -e "${FLAGS_to}" ]]; then
info "ESP already exists: ${FLAGS_to}"
exit 0
fi
info "Creating a new esp image at ${FLAGS_to}" anyway.
# Create EFI System Partition to boot stock EFI BIOS (but not ChromeOS EFI
# BIOS). ARM uses this space to determine which partition is bootable.
# NOTE: The size argument for mkfs.vfat is in 1024-byte blocks.
# We'll hard-code it to 16M for now.
ESP_BLOCKS=16384
/usr/sbin/mkfs.vfat -C "${FLAGS_to}" ${ESP_BLOCKS}