private void execLinuxCommand(String cmd){
Runtime runtime = Runtime.getRuntime();
try {
Process localProcess = runtime.exec("su");
OutputStream localOutputStream = localProcess.getOutputStream();
DataOutputStream localDataOutputStream = new DataOutputStream(localOutputStream);
localDataOutputStream.writeBytes(cmd);
localDataOutputStream.flush();
} catch (IOException e) {
Logger.i(TAG+"strLine:"+e.getMessage());
e.printStackTrace();
}
}
java.io.IOException: Error running exec(). Command: [su] Working Directory: null Environment: null 12-02 10:00:08.685 W/System.err: Caused by: java.io.IOException: Permission denied 12-02 10:00:08.686 W/System.err: at java.lang.ProcessManager.exec(Native Method) 12-02 10:00:08.686 W/System.err: at java.lang.ProcessManager.exec(ProcessManager.java:209) 12-02 10:00:08.687 W/System.err: ... 17 more
root@rk3288:/system/xbin # ls -al su -rwsr-x--- root shell 67160 2017-10-16 15:01 su
chmod 06755 /system/xbin/su
root@rk3288:/system/xbin # chmod 06755 /system/xbin/su Unable to chmod /system/xbin/su: Read-only file system
root@android:/ $ su su: uid 10061 not allowed to su root@android:/
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