Install busybox to Android

1. Remount the /system file system

adb shell

su

mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system

exit

2. Copy busybox to /data/local/

adb push busybox /data/local

adb shell

3. Create /system/xbin folder

/data/local/busybox mkdir /system/xbin

4. Install busybox

cd /data/local

chmod busybox 755

/data/local/busybox cp /data/local/busybox /system/xbin/busybox

cd /system/xbin

chmod busybox 755

./busybox --install -s /system/xbin

rm /data/local/busybox