I update_engine: [0530/162336:INFO:delta_performer.cc(359)] Applying 21701 operations to partition "system"
E update_engine: [0530/162336:ERROR:delta_performer.cc(1060)] The hash of the source data on disk for this operation doesn't match the expected value. This could mean that the delta update payload was targeted for another version, or that the source partition was modified after it was installed, for example, by mounting a filesystem.
E update_engine: [0530/162336
 
:ERROR:delta_performer.cc(1065)] Expected:   sha256|hex = 839ACF5296B9AB820DC822B6C09EBA896905531EB2C581093A357411F1A444A0
E update_engine: [0530/162336:ERROR:delta_performer.cc(1068)] Calculated: sha256|hex = 18AF8D6842A71554893F1DE65B87F2A9639FB390357C71D5383C6ED7A6051AFA
E update_engine: [0530/162336:ERROR:delta_performer.cc(1077
 
)] Operation source (offset:size) in blocks: 0:2,193:1,218:456,23471:8,32769:1,32961:1,37333:4,37351:3,37554:3,37570:2,37951:1,37959:1,38111:1,38125:1,38129:1,38139:1,38147:1,38149:1,38151:2,38155:1,38157:1,38360:5,38372:1,38377:5,38384:1,38437:1,38442:1,38447:1,38452:1,38457:1,38462:1,38467:1
E update_engine: [0530/162336
 
:ERROR:delta_performer.cc(1260)] ValidateSourceHash(source_hasher.raw_hash(), operation, error) failed.
E update_engine: [0530/162336:ERROR:delta_performer.cc(283)] Failed to perform SOURCE_BSDIFF operation 8, which is the operation 0 in partition "system"
E update_engine: [0530/162336:ERROR:download_action.cc(273)] Error 20 in DeltaPerformer's Write method when processing the received payload -- Terminating processing
I update_engine: [0530/162336:INFO:delta_performer.cc(299)] Discarding 113721 unused downloaded bytes
I update_engine: [0530/162336:INFO:multi_range_http_fetcher.cc(171)] Received transfer terminated.
I update_engine: [0530/162336:INFO:multi_range_http_fetcher.cc(123)] TransferEnded w/ code 200
I update_engine: [0530/162336:INFO:multi_range_http_fetcher.cc(125)] Terminating.
I update_engine: [0530/162336:INFO:action_processor.cc(116)] ActionProcessor: finished DownloadAction with code ErrorCode::kDownloadStateInitializationError
I update_engine: [0530/162336:INFO:action_processor.cc(121)] ActionProcessor: Aborting processing due to failure.
I update_engine: [0530/162336:INFO:update_attempter_android.cc(286)] Processing Done.
I update_engine: [0530/162336:INFO:update_attempter_android.cc(306)] Resetting update progress.

The hash of the source data on disk for this operation doesn't match the expected value. This could mean that the delta update payload was targeted for another version, or that the source partition was modified after it was installed, for example, by mounting a filesystem.

這個操作的磁碟上的源資料的雜湊與預期值不匹配。這可能意味著增量更新有效負載是針對另一個版本的，或者是在安裝之後修改了源分割槽，例如，通過安裝檔案系統。

原因: make otapackage 會對system.img重新打包 導致重新打包的system.img和out目錄下的system.img Hash值不一致.也就是線刷版本的system.img和OTA包的system.img不一致;整包升級會替換system.img,而差分包升級則需要保證系統內部的system.img和整包中system.img一致才能升級成功(差分包中儲存了通過sha256 Hash演算法計算出整包system.img的值,通過這個值來確定兩個system.img一致).

驗證是否如上原因導致:
    將整包中system.img通過fastboot燒錄到當前系統,再驗證差分包升級
    adb reboot bootloader
    fastboot devices 
    //切換到system.img所在的目錄
    fastboot flash system system.img
    fastboot reboot

解決:保證差分包或整包的system.img和線刷(也就是out目錄下)的system.img保持一致.將make otapackage源包中的system.img替換out目錄下system.img

out/target/product/xxx_qn6005_64/obj/PACKAGING/systemimage_intermediates/system.img

out/target/product/xxx_qn6005_64/system.img

指令碼實現:

1.在/build/core/Makefile中新增:

$(hide) ./build/tools/releasetools/replace_img_from_target_files.py [email protected] $(PRODUCT_OUT)

2.在/build/tools/releasetools/中定義replace_img_from_target_files.py指令碼

#!/usr/bin/env python
#
# Copyright (C) 2014 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

"""
Given a target-files zipfile that does contain images (ie, does
have an IMAGES/ top-level subdirectory), replace the images to
the output dir.

Usage:  replace_img_from_target_files target_files output
"""

import sys

if sys.hexversion < 0x02070000:
  print >> sys.stderr, "Python 2.7 or newer is required."
  sys.exit(1)

import errno
import os
import re
import shutil
import subprocess
import tempfile
import zipfile

image_replace_list = ["boot.img","system.img"]

# missing in Python 2.4 and before
if not hasattr(os, "SEEK_SET"):
  os.SEEK_SET = 0

def main(argv):

  if len(argv) != 2:
    sys.exit(1)

  if not os.path.exists(argv[0]):
    print "Target file:%s is invalid" % argv[0]
    sys.exit(1)

  if not os.path.exists(argv[1]):
    print "Output dir:%s is invalid" % argv[1]
    sys.exit(1)

  zf = zipfile.ZipFile(argv[0], 'r')

  for img in zf.namelist():
    if img.find("IMAGES/") != -1:
      if img.find(".img") != -1:
        data = zf.read(img)
        name = img.replace("IMAGES/", '')
        if name in image_replace_list:
          print "Replace %s" % name
          name = '/'.join((argv[1], name))
          file = open(name, "w")
          file.write(data)
          file.close()

if __name__ == '__main__':
  main(sys.argv[1:])