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37522c9c0c
The script sign_official_build.sh does the appropriate signing depending on whether an ssd, recovery or factory-install image is desired. Also re-factors some common functionality into common.sh. BUG=3496 TEST=manual I haven't had a chance to test this on an actual machine running our firmware but will do that before I actually check-in. Thoughts I'd atleast get this out to get the review going. Review URL: http://codereview.chromium.org/3066034
46 lines
1.2 KiB
Bash
46 lines
1.2 KiB
Bash
#!/bin/bash
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# Copyright (c) 2010 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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# Determine script directory
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SCRIPT_DIR=$(dirname $0)
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GPT=cgpt
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# Read GPT table to find the starting location of a specific partition.
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# Args: DEVICE PARTNUM
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# Returns: offset (in sectors) of partition PARTNUM
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partoffset() {
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sudo $GPT show -b -i $2 $1
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}
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# Read GPT table to find the size of a specific partition.
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# Args: DEVICE PARTNUM
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# Returns: size (in sectors) of partition PARTNUM
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partsize() {
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sudo $GPT show -s -i $2 $1
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}
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# Mount a partition from an image into a local directory
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# Args: IMAGE PARTNUM MOUNTDIRECTORY
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mount_image_partition() {
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local image=$1
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local partnum=$2
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local mount_dir=$3
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local offset=$(partoffset "$image" "$partnum")
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sudo mount -o loop,offset=$((offset * 512)) "$image" "$mount_dir"
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}
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# Extract a partition to a file
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# Args: IMAGE PARTNUM OUTPUTFILE
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extract_image_partition() {
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local image=$1
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local partnum=$2
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local output_file=$3
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local offset=$(partoffset "$image" "$partnum")
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local size=$(partsize "$image" "$partnum")
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dd if=$image of=$output_file bs=512 skip=$offset count=$size
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}
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