Android: how to reboot by software my board?

Question

I develop an Android app for a pcDuino board (based on Android 4.2).

In my app, there is a Watchdog thread; this thread checks its messages received from other threads; if there is any problem (no message received during a specific time by another thread) then this Watchdog thread must restart the board.

My app is a service and this service starts on the board boot (it's done for that).

So, is it possible to reboot this board by software?

This would be fairly device specific, but you can see if there is a /system/bin/reboot or similar, and if that works when run unprivileged. It's likely on that board you can somehow get root access and create a setuid executable to reboot the board if one doesn't already exist, but do it carefully so as not to introduce a greater security hole. — Chris Stratton, Apr 23 '14 at 16:56

score 0 · Answer 1 · edited May 23 '17 at 12:20

I am using the following code from this link. It works as long as you are rooted. As an aside, reboot -p will perform a shutdown if you need this option in your code.

How to shutdown an android mobile programatically?

    Process chperm;
    try {
        chperm = Runtime.getRuntime().exec("su");
        DataOutputStream os =
                new DataOutputStream(chperm.getOutputStream());

        os.writeBytes("reboot\n");
        os.flush();

        chperm.waitFor();

    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (InterruptedException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

Android: how to reboot by software my board?

1 Answers1