Obtain root access via su on the Android emulator

Ok, I solve the problem by myself :/

It works with sdk revision 10 and in an avd 2.2. The problem with the tip I have followed previously is the remount step. Here is the list of commands working for me (extract from http://forum.xda-developers.com/showthread.php?t=821742) :

adb shell mount -o rw,remount -t yaffs2 /dev/block/mtdblock03 /system
adb push su /system/xbin/su
adb shell chmod 06755 /system
adb shell chmod 06755 /system/xbin/su
adb install superuser.apk

You can get the su binary and the superuser app here : http://forum.xda-developers.com/showthread.php?t=682828

You have to do that each time you start the emulator.

I was able to get superuser.apk to stay between reboots by deleting /system/app/SdkSetup.apk

I just checked again now and it was recreated, but I still have Superuser.apk between my reboots.

I would also recommend pushing a busybox binary along with su.