From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chanchal Paul Subject: RT Kernel compile and install help needed. Date: Tue, 4 Nov 2014 17:09:13 +0530 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 To: linux-rt-users@vger.kernel.org Return-path: Received: from mail-ob0-f195.google.com ([209.85.214.195]:36563 "EHLO mail-ob0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752570AbaKDLjO (ORCPT ); Tue, 4 Nov 2014 06:39:14 -0500 Received: by mail-ob0-f195.google.com with SMTP id m8so2575727obr.10 for ; Tue, 04 Nov 2014 03:39:13 -0800 (PST) Sender: linux-rt-users-owner@vger.kernel.org List-ID: I am fairly new to kernel compilation and installation process, still i managed to learn from Kernelnewbies and RT-wiki and managed to patch 3.12.14 vanilla kernel with rt patch 3.14.12. Then I followed the steps and installed rt-kernel in my lubuntu vm. While doing make menuconfig, i selected preemtion model as BASIC-RT from processor type and features option. It worked. Now my confusion arises when i see my uname -a string as [Linux paul-lubuntu 3.14.12-rt9 #2 SMP PREEMPT Tue Oct 28 13:30:27 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux] which indicated that i have a preemptive kernel installed. but the c program from RT_PREEMPT_HOWTO section of RTwiki website for Runtime detection of an RT-PREEMPT Kernel only prints [this is a vanilla kernel]. So, my question is am I running a vanilla kernel or a real-time kernel? If I am not then what are the steps to properly install a real-time kernel? Thanking you for giving attention to my mail.