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e82e99e999
This script gets run on the target, so we need to avoid bash. BUG=chromium-os:34715 TEST=build_image works Change-Id: Ib64036246149b8b98414e4434ed89a3a40c2f693 Reviewed-on: https://gerrit.chromium.org/gerrit/33911 Reviewed-by: Liam McLoughlin <lmcloughlin@chromium.org> Commit-Ready: Mike Frysinger <vapier@chromium.org> Tested-by: Mike Frysinger <vapier@chromium.org>
39 lines
1.1 KiB
Bash
39 lines
1.1 KiB
Bash
#!/bin/sh
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# Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# This script is automatically generated by @SCRIPT_GENERATOR@
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# Do not edit!
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if ! type numsectors >/dev/null 2>&1; then
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if [ -f "/usr/sbin/chromeos-common.sh" ]; then
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. "/usr/sbin/chromeos-common.sh"
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else
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echo "Can't load chromeos-common.sh, dying!" 1>&2
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exit 1
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fi
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fi
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locate_gpt
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# Usage: create_image <device> <min_disk_size> <block_size>
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# If <device> is a block device, wipes out the GPT
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# If it's not, it creates a new file of the requested size
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create_image() {
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local dev=$1
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local min_disk_size=$2
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local block_size=$3
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if [ -b "${dev}" ]; then
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# Zap any old partitions (otherwise gpt complains).
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dd if=/dev/zero of="${dev}" conv=notrunc bs=512 count=32
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dd if=/dev/zero of="${dev}" conv=notrunc bs=512 \
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seek=$((${min_disk_size} - 1 - 33)) count=33
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else
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if [ ! -e "${dev}" ]; then
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dd if=/dev/zero of="${dev}" bs=${block_size} count=1 \
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seek=$((${min_disk_size} - 1))
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fi
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fi
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}
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