for detailed information, refer to
Android Open Source Project ---> Get source
- 系统环境: Ubuntu 9.10, Kernel 2.6.31-14-generic, i686
- 网络环境: 学生公寓B区 中国电信宽带接入
- Date： 12/12/2009
安装必要的软件包
本机当前源没有Package: sun-java5-jdk，为安装sun-java5-jdk，将当前源替换为以下Ubuntu 9.04的源
deb http://run.hit.edu.cn/ubuntu/ jaunty main restricted universe multiverse
deb-src http://run.hit.edu.cn/ubuntu/ jaunty main restricted universe multiverse
deb http://run.hit.edu.cn/ubuntu/ jaunty-updates main restricted universe multiverse
deb-src http://run.hit.edu.cn/ubuntu/ jaunty-updates main restricted universe multiverse
deb http://run.hit.edu.cn/ubuntu/ jaunty-backports main restricted universe multiverse
deb-src http://run.hit.edu.cn/ubuntu/ jaunty-backports main restricted universe multiverse
deb http://run.hit.edu.cn/ubuntu/ jaunty-security main restricted universe multiverse
deb-src http://run.hit.edu.cn/ubuntu/ jaunty-security main restricted universe multiverse
然后
$ sudo apt-get update
$ sudo apt-get install sun-java5-jdk
安装sun-java5-jdk后，换回Ubuntu 9.10的源。 若希望系统使用sun-java5-jdk，首先获得root权限并使用命令
# update-alternatives --config java
然后，选择"/usr/lib/jvm/java-1.5.0-sun/jre/bin/java"这一项，使系统使用sun-java5-jdk。 可以用命令
$ java -version
查看系统当前使用的java版本
本机源无此Package, and Android Open Source Project says: 'Intrepid (8.10) users may need a newer version of libreadline'. 在网上只搜到了用于amd64平台的lib32readline5-dev.deb包。
这里有readline5的源代码，可以编译出lib32readline5-dev，有兴趣的可以试一下。笔者目前没有装lib32readline5-dev。(但是，可以使用$sudo apt-get install libreadline5-dev 安装libreadline5-dev。它与lib32readline5-dev 一样？笔者装了libreadline5-dev，目前不知道这是干嘛用的。)
安装Repo
For more information about Repo, see
Using Repo and Git.
初始化Repo客户端
输入
$ cd ~
$ mkdir yangdroid; cd yangdroid
下载Repo，下列命令将在"下载Android源码阶段"下载Android master version
$ repo init -u git://android.git.kernel.org/platform/manifest.git
下载其他版本的Android用-b选项，如
$ repo init -u git://android.git.kernel.org/platform/manifest.git -b cupcake
在提示符后输入用户名和Email(推荐使用gmail)。
下载Android源码
输入
$ repo sync
下载完后，Android源码将存放于~/yangdroid目录。
Verifying Git Tags
输入
$ gpg --import
粘贴下列Key至终端，回车并按Ctrl-D将Key导入GnuPG key database。
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END
- for other platforms, such as Ubuntu Linux (64-bit x86), Mac OS, and Other Linux, see
Android Open Source Project ---> Get source
