Hello everyone,
An error related to SuperSU's su binary file occured when i try to run "mount" linux command through background sh process.
Everything is ok in the process of running su and a root permission is properly got by SuperSU, code is here:
Of cause i run it in a sub thread and won't block the UI thread.
And in the click listener of a button i trigger the mount command in the similar process.
writer.println("toolbox mount -o rw,remount /system");
But when i successfully mount that path and return to SuperSU, the error occurs with no doult.
An error dialog will be poped up like this: There is no SU binary installed, and SuperSU cannot install it. This is a problem!
Any one have an idea that why running a single linux mount command can cause that problem? And how couldi do?
An error related to SuperSU's su binary file occured when i try to run "mount" linux command through background sh process.
Everything is ok in the process of running su and a root permission is properly got by SuperSU, code is here:
Code:
Process process = (new ProcessBuilder("/system/bin/sh")).redirectErrorStream(true).start();
BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
PrintWriter writer = new PringWriter(process.getOutputStream());
writer.println("echo start");
writer.println("su");
writer.println("echo end");
String res = null;
while ((res = reader.readLine()) != null) {
if (res.equals("end")) break;
}And in the click listener of a button i trigger the mount command in the similar process.
writer.println("toolbox mount -o rw,remount /system");
But when i successfully mount that path and return to SuperSU, the error occurs with no doult.
An error dialog will be poped up like this: There is no SU binary installed, and SuperSU cannot install it. This is a problem!
Any one have an idea that why running a single linux mount command can cause that problem? And how couldi do?