android on gumstix overo

First, Creating a bootable microSD card for gumstix

http://www.gumstix.net/Overo/view/Overo/Creating-a-bootable-microSD-card/115.html

切出兩個partition, 一個是FAT, 另一個是ext3

在 http://www.gumstix.net/overo-gm-images/v0.91/ 下載ML0, u-boot.bin, 放至FAT partition

Second, Compile gumstix kernel fitted android and configure boot args

參考 http://labs.embinux.org/index.php/Android_Porting_Guide_to_Beagle_Board

使用beagle board已經patch好的kernel

menuconfig的設定, star system type-> gumstix overo

並且勾選zd1211的項目, 讓wifi可以運作

使用CodeSourcery的toolchain編譯

$ make arch=arm CROSS_COMPILE= PATH_TO_CODE_SOURCERY _TOOL_CHAIN uImage

update: android on beagle的kernel似乎有新版的

最後把uImage放置FAT的partition

Boot arguments of Gumstix

$ setenv mmcargs setenv bootargs console=ttyS2,115200n8, video= omapfb:mode:1280x720@50, root=/dev/mmcblk0p2 rootdelay=2 init=/init

update: ttyS2,115200n8兩個參數之間不能有空白...亂碼狂噴...orz

Third, Compile RFS and configure it

參考 http://source.android.com/download

下載source並且set up environment

$ cd ~/mydroid

$ make (make showcommands for debug)

編譯好的RFS會放在 mydroid/out/target/product/generic/

$ cp -a root/* /media/ext3_partition/

$ cp -a data/* /media/ext3_partition/data/

$ cp -a system/* /media/ex3_partition/system/

init.rc patch http://labs.embinux.org/images/6/6c/Initrc.patch

$ cd /media/ext3_partition/

$ patch -p1 < initrc.patch

Qwerty patch http://labs.embinux.org/images/f/fd/Qwerty.patch

$ cd /media/ext3_partition/system/usr/keylayout

$ patch -p1 < Qwery.patch

權限設定

$ cd /media/ext3_partition/

$ chown -R root.root *

$ chmod -R 777 data/ system/

網路設定

$ vi /media/ext3_partition/init.rc

#basic network init

ifup eth0(or wlan0)

setprop net.dns1 <primary-dns-server-ip>

新增tty1

$ vi /media/ext3_partition/init.rc

service getty /sbin/getty 38400 tty1

新增額外的shell, ex: iwconfig, ifconfig...etc

把Angstrom的/bin, /sbin, /lib丟到/media/ext3_partitaion

系統boot之後, 使用下面指令啟動dhcp

$ netcfg eth0(or wlan0) dhcp

debug

$ logcat