0，vbox挂载共享
sudo mount -t vboxsf H /mnt/H/
1，安装系统
配置：
内存 12G
cpu 16个，峰值 95%
硬盘200G
分区：自动分区
2，配置环境，下载源码
sudo apt-get update
sudo apt-get install git-core gnupg flex bison gperf build-essential \
zip curl zlib1g-dev gcc-multilib g++-multilib libc6-dev-i386 \
lib32ncurses5-dev x11proto-core-dev libx11-dev lib32z-dev ccache \
libgl1-mesa-dev libxml2-utils xsltproc unzip
sudo apt-get install openjdk-7-jdk
mkdir ~/bin
PATH=~/bin:$PATH
curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
chmod a+x ~/bin/repo
git config --global user.name "fbb"
git config --global user.email "fbb@fbb.com"
M4B30Z android-6.0.1_r77 Marshmallow Nexus 5
mkdir android-6.0.1_r77
cd android-6.0.1_r77
## 如果提示无法连接到 gerrit.googlesource.com，可以编辑 ~/bin/repo，把 REPO_URL 一行替换成下面的：
## REPO_URL = ‘https://gerrit-googlesource.proxy.ustclug.org/git-repo‘
//google地址下载困难用，清华的镜像。
repo init -u git://mirrors.ustc.edu.cn/aosp/platform/manifest -b android-6.0.1_r77
repo sync -j4
3，(参考)下载nexus 5 的硬件驱动：
关键字：编译android 刷到nexus 5
https://developers.google.com/android/drivers
Nexus 5 (GSM/LTE) ("hammerhead")
Nexus 5 (GSM/LTE) binaries for Android 6.0.1 (MMB29S)
/*
Nexus 5 (GSM/LTE) binaries for Android 6.0.1 (MMB29S)
Hardware Component Company Download SHA-256 Checksum
NFC, Bluetooth, Wi-Fi Broadcom Link 57e056be0925ab0800d5e07b06849322d9a8d3e9e00f0fe1ecebad0387d3f1f1
Camera, Sensors, Audio LG Link 3a8f970fc13330ea54573f2c9002a1071dae56eae5337aa2220efa213b810164
Graphics, GSM, Camera, GPS, Sensors, Media, DSP, USB Qualcomm Link add1a3008faf2a68b44851e7ab193fb5b2e488dd4a92ec0c6b7d391576312a23
*/
过程：
根据链接下载 三个 tgz的文件，
解压后是sh文件放到源码的跟目录，
执行sh文件，会在源码根目录下生存vendor文件夹。
命令:
mkdir drivers
curl https://dl.google.com/dl/android/aosp/broadcom-hammerhead-mmb29s-3a3c03c6.tgz > ~/drivers/broadcom-hammerhead-mmb29s-3a3c03c6.tgz
curl https://dl.google.com/dl/android/aosp/lge-hammerhead-mmb29s-fa0209c9.tgz > ~/drivers/lge-hammerhead-mmb29s-fa0209c9.tgz
curl https://dl.google.com/dl/android/aosp/qcom-hammerhead-mmb29s-bd184be4.tgz > ~/drivers/qcom-hammerhead-mmb29s-bd184be4.tgz
tar -zxf broadcom-hammerhead-mmb29s-3a3c03c6.tgz
tar -zxf lge-hammerhead-mmb29s-fa0209c9.tgz
tar -zxf qcom-hammerhead-mmb29s-bd184be4.tgz
cp ~/drivers/extract-broadcom-hammerhead.sh ~/android-4.4.4_r1/extract-broadcom-hammerhead.sh
cp ~/drivers/extract-lge-hammerhead.sh ~/android-4.4.4_r1/extract-lge-hammerhead.sh
cp ~/drivers/extract-qcom-hammerhead.sh ~/android-4.4.4_r1/extract-qcom-hammerhead.sh
./extract-broadcom-hammerhead.sh
./extract-lge-hammerhead.sh
./extract-qcom-hammerhead.sh
################################################################
打包：tar -cf /mnt/H/android-6.0.1_r77.tar android-6.0.1_r77
################################################################
4，编译android源码
make clobber
source build/envsetup.sh
lunch
输入：19
选择的：
19. aosp_hammerhead-userdebug
make -j16
lunch aosp_hammerhead-user
TARGET_BUILD_VARIANT=user
choosecombo release msm8974 user
function choosecombo()
{
choosetype $1
echo
echo
chooseproduct $2
echo
echo
choosevariant $3
echo
set_stuff_for_environment
printconfig
choosevariant
choosevariant
user版本需要先打开USB debug开关，打开方式如下：
1、打开usb调试 build/core/main.mk
请将user版本下也改为ro.debuggable = 1
ifeq (true,(strip(enable_target_debugging)))
# Target is more debuggable and adbd is on by default
ADDITIONAL_DEFAULT_PROPERTIES += ro.debuggable=1
# Include the debugging/testing OTA keys in this build.
INCLUDE_TEST_OTA_KEYS := true
else # !enable_target_debugging
# Target is less debuggable and adbd is off by default
ADDITIONAL_DEFAULT_PROPERTIES += ro.debuggable=1 //这边改成1
endif # !enable_target_debugging
语言：
/home/fbb/android-6.0.1_r77/build/target/product/languages_full.mk