Create an android root file system

1. Compile the Souce code of the entire android system. After compilation, three image files ramdisk. IMG, system. IMG, and userdata. IMG will be generated.

2. Unzip ramdisk. IMG:

MV ramdisk. IMG ramdisk.gz

Mkdir out

CD out & cpio-I-f ../ramdisk.gz

 

3. Cross-compile busybox. You only need to compile tar. Can it be from http://blog.chinaunix.net/u/20947/showart.php? Id = 1913228 download.

 

4. Install busybox

ADB Shell

ADB push busybox/data/busybox

CD/data/busybox;./busybox -- install

Chmod 555/system/bin/busybox

5. Copy the system and data directory

/Data/busybox tar CVF/data/data.tar/Data

/Data/busybox tar CVF/data/system.tar/System

ADB pull/data/system.tar

ADB pull/data/data.tar

 

6. Copy the contents of system.tar and data.tar to the system and Data Directories decompressed by ramdisk.

7. Create/dev directory

7. generation tools mkyaffs2image and mkyaffs

Http://www.aleph1.co.uk/cgi-bin/viewcvs.cgi/yaffs2/

./Mkyaffs2image system/system. img

 

8. Use mkyaffs2image to create the entire root file system