From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751697AbaHPRuO (ORCPT ); Sat, 16 Aug 2014 13:50:14 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:49552 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751589AbaHPRuM (ORCPT ); Sat, 16 Aug 2014 13:50:12 -0400 Date: Sat, 16 Aug 2014 10:49:37 -0700 From: Greg KH To: Mohan Rajanna Cc: kernelnewbies@nl.linux.org, linux-kernel@vger.kernel.org Subject: Re: UEFI booting Kernel without bootloader Message-ID: <20140816174937.GA17134@kroah.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Aug 16, 2014 at 05:24:08PM +0530, Mohan Rajanna wrote: > Dear Elites, > >   > > Since I am not supposed to ask questions directly to Greg, So posting my query > to you all. You shouldn't ever ask questions only to a kernel developer, that's what a mailing list is for. > Query: > >                 I am doing study on necessary changes required to boot Kernel > and initrd directly from UEFI without boot loader support. I found very helping > stuff in below link. > > http://www.kroah.com/log/ > > Can I get concrete configuration steps for the same. What did you try that did not work? >                 What are the impact/dependencies if boot loader is not used ? Upgrading a kernel version is totally different, you need to tell UEFI about it, which is different from what distros currently do. thanks, greg k-h