From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ralf Mardorf Subject: Re: RT Kernel compile and install help needed. Date: Tue, 4 Nov 2014 13:33:53 +0100 Message-ID: <20141104133353.1698412d@archlinux> References: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit To: linux-rt-users@vger.kernel.org Return-path: Received: from mail235c50.megamailservers.eu ([91.136.10.245]:55156 "EHLO mail56c50.megamailservers.eu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751368AbaKDMd7 (ORCPT ); Tue, 4 Nov 2014 07:33:59 -0500 Received: from archlinux (g231006077.adsl.alicedsl.de [92.231.6.77]) (authenticated bits=0) by mail56c50.megamailservers.eu (8.13.6/8.13.1) with ESMTP id sA4CXr0P006967 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO) for ; Tue, 4 Nov 2014 12:33:56 +0000 In-Reply-To: Sender: linux-rt-users-owner@vger.kernel.org List-ID: On Tue, 4 Nov 2014 17:09:13 +0530 Chanchal Paul wrote: > 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. Assume you should use Debian/Ubuntu or Arch Linux I can help you to build a kernel-rt package. As long as RT isn't mentioned in the uname -a string, you don't run a kernel-rt. Did you copy the original config of your installed distros's kernel, run make oldconfig and cared about questions regarding RT? Please consider to ask such a question at http://lists.linuxaudio.org/listinfo/linux-audio-user instead of this list.