Linux Shell remount System RO - Java Native OS

Java examples for Native OS:Linux

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Description

Linux Shell remount System RO

Demo Code


//package com.java2s;
import java.io.DataOutputStream;
import java.io.IOException;

public class Main {
    public static void main(String[] argv) throws Exception {
        remountSystemRO();//  ww  w . java  2 s  .  c  o m
    }

    private final static String CMD_REMOUNT_RO = "grep \" /system \" /proc/mounts | awk '{system(\"mount -o ro,remount -t \"$3\" \"$1\" \"$2)}'";

    public static void remountSystemRO() throws IOException {
        Process p = Runtime.getRuntime().exec("su");
        DataOutputStream os = new DataOutputStream(p.getOutputStream());
        os.writeBytes(CMD_REMOUNT_RO + "\n");
        os.writeBytes("exit\n");
        os.flush();

    }
}

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