how to reboot the emulator into recovery mode

android reboot
Preetam picture Preetam · Mar 26, 2011 · Viewed 10.7k times · Source

is there any way to reboot the emulator into recovery mode??

Answer

Rida Shamasneh picture Rida Shamasneh · Mar 15, 2016
  • Android emulator does not support recovery mode, just normal boot mode
  • Android emulator accepts Android images -including kernel and ramdisk images - as standalone images on it's command line interface. They are not compiled to one big image as in a real world scenario where all Android partitions are stored to the same phone storage
  • The kernel of Android emulator is a custom build of a android kernel, it's called goldfish kernel which can communicate with the virtual platform developed by Google engineers named as "goldfish", a pre-built of this kernel can be found under $sdk/system-images/android-22/default/armeabi-v7a/kernel-qemu Please note you can not just replace it by kernels other than goldfish kernels. However, goldfish kernel source code can be found @ gooogle repo and can be easily compiled and replaced by the default one that comes with the Android SDK
  • In case you need to run the android emulator with another Linux kernel, then you have to port this kernel to the golfish virtual hardware (which is not a straight-forward process). I did it before and I can elaborate more on how to do it if needed.
  • In order to boot the android emulator in the recovery mode, you need to do an extra effort of porting a tool called "u-boot" (i.e. a well-known and widely used 2nd stage boot-loader used in real phones) to the goldish virtual board to be able to run it on top of android emulator. I did that a couple of years ago and it was very mind-blowing process. I can provide you with tremendous information if you are interested in doing so.

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