由于好奇，所以想练下手。计划从官方下载android2.3.4源码，移植到tiny6410.哈哈，反正有友善的代码参考。我相信一定能成功！

环境：ubuntu10.10 32位

一.在ubuntu从官方下载android2.3.4R1源码，官方网站有配置和下载介绍http://source.android.com/source/downloading.html

下载成功。

复制代码 下载源码步骤 1. $ mkdir ~/bin $ PATH=~/bin:$PATH 2. $ curl https://dl-ssl.google.com/dl/googlesource/git-repo/repo > ~/bin/repo $ chmod a+x ~/bin/repo 3. $ mkdir WORKING_DIRECTORY $ cd WORKING_DIRECTORY 4. $ repo init -u https://android.googlesource.com/platform/manifest -b android-2.3.4_r1 5. $ repo sync 如果中间有停下，就继续执行第5步repo sync，就会继续下载。

二.编译android2.3.4R1,由于默认的是用64位系统编译，我的是32系统，所以遇到一些麻烦，没事。百度一下，再对比下友善的代码，改了5个文件，很简单。

继续make,成功！已经生成system.img 等三个文件

复制代码 编译步骤进到android源码的根目录执行make命令，如果是32位系统编译会出错。因为官方的android源码默认要求用64位系统编译，解决方法如下

复制代码 ----------------------------64位改32位编译方法----------------------------------- 因为Android2.3默认是64位的系统上编译，需要手动修改build/core/main.mk，把这个判断部分注释掉： #ifneq (64,$(findstring 64,$(build_arch))) #$(warning ************************************************************) #$(warning You are attempting to build on a 32-bit system.) #$(warning Only 64-bit build environments are supported beyond froyo/2.2.) #$(warning ************************************************************) #$(error stop) #endif （二） 重新make，如果是安装了JDK6版本，会又报错： Docs droiddoc: out/target/common/docs/api-stubs Could not load ‘clearsilver-jni’ java.library.path = out/host/linux-x86/lib make: *** [out/target/common/docs/api-stubs-timestamp] Error 45 make: *** Waiting for unfinished jobs…. Could not load ‘clearsilver-jni’ java.library.path = out/host/linux-x86/lib make: *** [out/target/common/docs/doc-comment-check-timestamp] Error 45 这是由于clearsilver在编译时如果检测到使用Java JDK 6，就使用64位编译，因为Google的一个员工更新了几个文件。这里可以看到详细的修改记录：[url]http://android.git.kernel.org/?p=platform/external/clearsilver.git;a=commitdiff;h=d36910a8110d8377b22301274d2b5131a732a72b[/url] 修改这几个文件，该回到32位编译环境即可： external/clearsilver/cgi/Android.mk external/clearsilver/java-jni/Android.mk external/clearsilver/util/Android.mk external/clearsilver/cs/Android.mk 把编译选项-m64改成-m32即可 -------------------------------------------------------------------------------------------

三.模拟器加载自己编译的系统运行，也成功。

复制代码 默认使用内核路径 prebuilt/android-arm/kernel/kernel-qwmu 模拟器运行之前配置ANDROID_PRODUCT_OUT环境变量 $ declare -x ANDROID_PRODUCT_OUT="{Android根目录}/out/target/product/generic" 在android 源码根目录执行命令： $./out/host/linux-x86/bin/emulator 这样模拟器就跑起来了

四.在学习制作android文件系统，在研究友善的脚本中。。。

五.让自己的制作的文件系统在tiny6410中跑起来。

up up

Good

太晚了 明天试试 楼主威武

楼主,几个问题求解答:
1,默认使用内核路径
prebuilt/android-arm/kernel/kernel-qwmu
这个是为了做什么,相关指令是什么.
2,模拟器加载时./out/host/linux-x86/bin/emulator提示没有指定SDK,
3, 你编译之后的system.img/ramdisk.img/userdata.img怎么打包成yaffs.

同楼上的一样，也在 自行移植自己下载的版本到开发板上；

楼主，按你的步骤在第五步出现问题。repo sync

... A new repo command ( 1.16) is available.
... You should upgrade soon:

    cp /root/workspace/.repo/repo/repo /bin/repo

Exception in thread Thread-1:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 530, in __bootstrap_inner
    self.run()
  File "/usr/lib/python2.7/threading.py", line 483, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/root/workspace/.repo/repo/subcmds/sync.py", line 200, in _FetchHelper
    clone_bundle=not opt.no_clone_bundle)
  File "/root/workspace/.repo/repo/project.py", line 968, in Sync_NetworkHalf
    and self._ApplyCloneBundle(initial=is_new, quiet=quiet):
  File "/root/workspace/.repo/repo/project.py", line 1523, in _ApplyCloneBundle
    exist_dst = self._FetchBundle(bundle_url, bundle_tmp, bundle_dst, quiet)
  File "/root/workspace/.repo/repo/project.py", line 1587, in _FetchBundle
    raise DownloadError('%s: %s ' % (req.get_host(), str(e)))
DownloadError: android.googlesource.com: <urlopen error [Errno 110] Connection timed out>

Exception in thread Thread-2:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 530, in __bootstrap_inner
    self.run()
  File "/usr/lib/python2.7/threading.py", line 483, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/root/workspace/.repo/repo/subcmds/sync.py", line 200, in _FetchHelper
    clone_bundle=not opt.no_clone_bundle)
  File "/root/workspace/.repo/repo/project.py", line 968, in Sync_NetworkHalf
    and self._ApplyCloneBundle(initial=is_new, quiet=quiet):
  File "/root/workspace/.repo/repo/project.py", line 1523, in _ApplyCloneBundle
    exist_dst = self._FetchBundle(bundle_url, bundle_tmp, bundle_dst, quiet)
  File "/root/workspace/.repo/repo/project.py", line 1587, in _FetchBundle
    raise DownloadError('%s: %s ' % (req.get_host(), str(e)))
DownloadError: android.googlesource.com: <urlopen error [Errno 110] Connection timed out>

Exception in thread Thread-3:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 530, in __bootstrap_inner
    self.run()
  File "/usr/lib/python2.7/threading.py", line 483, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/root/workspace/.repo/repo/subcmds/sync.py", line 200, in _FetchHelper
    clone_bundle=not opt.no_clone_bundle)
  File "/root/workspace/.repo/repo/project.py", line 968, in Sync_NetworkHalf
    and self._ApplyCloneBundle(initial=is_new, quiet=quiet):
  File "/root/workspace/.repo/repo/project.py", line 1523, in _ApplyCloneBundle
    exist_dst = self._FetchBundle(bundle_url, bundle_tmp, bundle_dst, quiet)
  File "/root/workspace/.repo/repo/project.py", line 1587, in _FetchBundle
    raise DownloadError('%s: %s ' % (req.get_host(), str(e)))
DownloadError: android.googlesource.com: <urlopen error [Errno 110] Connection timed out>

Exception in thread Thread-4:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 530, in __bootstrap_inner
    self.run()
  File "/usr/lib/python2.7/threading.py", line 483, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/root/workspace/.repo/repo/subcmds/sync.py", line 200, in _FetchHelper
    clone_bundle=not opt.no_clone_bundle)
  File "/root/workspace/.repo/repo/project.py", line 968, in Sync_NetworkHalf
    and self._ApplyCloneBundle(initial=is_new, quiet=quiet):
  File "/root/workspace/.repo/repo/project.py", line 1523, in _ApplyCloneBundle
    exist_dst = self._FetchBundle(bundle_url, bundle_tmp, bundle_dst, quiet)
  File "/root/workspace/.repo/repo/project.py", line 1587, in _FetchBundle
    raise DownloadError('%s: %s ' % (req.get_host(), str(e)))
DownloadError: android.googlesource.com: <urlopen error [Errno 110] Connection timed out>

Exception in thread Thread-5:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 530, in __bootstrap_inner
    self.run()
  File "/usr/lib/python2.7/threading.py", line 483, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/root/workspace/.repo/repo/subcmds/sync.py", line 200, in _FetchHelper
    clone_bundle=not opt.no_clone_bundle)
  File "/root/workspace/.repo/repo/project.py", line 968, in Sync_NetworkHalf
    and self._ApplyCloneBundle(initial=is_new, quiet=quiet):
  File "/root/workspace/.repo/repo/project.py", line 1523, in _ApplyCloneBundle
    exist_dst = self._FetchBundle(bundle_url, bundle_tmp, bundle_dst, quiet)
  File "/root/workspace/.repo/repo/project.py", line 1587, in _FetchBundle
    raise DownloadError('%s: %s ' % (req.get_host(), str(e)))
DownloadError: android.googlesource.com: <urlopen error [Errno 110] Connection timed out>


error: Exited sync due to fetch errors

是咋回事阿？