From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965052AbWFIAlK (ORCPT ); Thu, 8 Jun 2006 20:41:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965058AbWFIAlK (ORCPT ); Thu, 8 Jun 2006 20:41:10 -0400 Received: from vbn.0050556.lodgenet.net ([216.142.194.234]:22690 "EHLO vbn.0050556.lodgenet.net") by vger.kernel.org with ESMTP id S965052AbWFIAlF (ORCPT ); Thu, 8 Jun 2006 20:41:05 -0400 Subject: Re: booting without initrd From: Arjan van de Ven To: Rahul Karnik Cc: Ram Gupta , linux mailing-list In-Reply-To: References: <728201270606070913g2a6b23bbj9439168a1d8dbca8@mail.gmail.com> Content-Type: text/plain Date: Fri, 09 Jun 2006 02:40:59 +0200 Message-Id: <1149813659.3124.31.camel@laptopd505.fenrus.org> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 (2.2.3-2.fc4) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2006-06-08 at 13:40 -0400, Rahul Karnik wrote: > On 6/7/06, Ram Gupta wrote: > > I am trying to boot with 2.6.16 kernel at my desktop running fedora > > core 4 . It does not boot without initrd generating the message "VFS: > > can not open device "804" or unknown-block(8,4) > > Please append a correct "root=" boot option > > Kernel panic - not syncing : VFS:Unable to mount root fs on unknown-block(8,4) > > AFAIK Fedora sets up the kernel command line with "root=LABEL=/" in > grub.conf and therefore needs the initrd in order to work correctly. > If you do not want an initrd, then change this to > "root=/dev/" in grub.conf. it's more than that; also udev is used from the initrd to populate a ramfs /dev, if you go without the initrd you need to populate the *real* /dev manually first