From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753879Ab1IFSSN (ORCPT ); Tue, 6 Sep 2011 14:18:13 -0400 Received: from out02.mta.xmission.com ([166.70.13.232]:53379 "EHLO out02.mta.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753685Ab1IFSSJ (ORCPT ); Tue, 6 Sep 2011 14:18:09 -0400 From: ebiederm@xmission.com (Eric W. Biederman) To: Christian Gmeiner Cc: linux-kernel@vger.kernel.org References: Date: Tue, 06 Sep 2011 11:18:05 -0700 In-Reply-To: (Christian Gmeiner's message of "Mon, 5 Sep 2011 10:24:13 +0200") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-XM-SPF: eid=;;;mid=;;;hst=in01.mta.xmission.com;;;ip=98.207.153.68;;;frm=ebiederm@xmission.com;;;spf=neutral X-XM-AID: U2FsdGVkX1+FFIJHlXv/e1wf1pyf1nq956PuSZbRSHE= X-SA-Exim-Connect-IP: 98.207.153.68 X-SA-Exim-Mail-From: ebiederm@xmission.com X-Spam-Report: * -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP * 0.0 T_TM2_M_HEADER_IN_MSG BODY: T_TM2_M_HEADER_IN_MSG * -3.0 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] * -0.0 DCC_CHECK_NEGATIVE Not listed in DCC * [sa05 1397; Body=1 Fuz1=1 Fuz2=1] * 0.4 UNTRUSTED_Relay Comes from a non-trusted relay X-Spam-DCC: XMission; sa05 1397; Body=1 Fuz1=1 Fuz2=1 X-Spam-Combo: ;Christian Gmeiner X-Spam-Relay-Country: Subject: Re: Linux as Bootloader X-Spam-Flag: No X-SA-Exim-Version: 4.2.1 (built Fri, 06 Aug 2010 16:31:04 -0600) X-SA-Exim-Scanned: Yes (on in01.mta.xmission.com) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Christian Gmeiner writes: > Hi all, > > I am using the linux kernel in combination with busybox and a separate > bootloader app to > startup a x86 based embedded device. As the used BIOS does only do > basic hw init, we > used Linux as a bootloader. Our custom BIOS starts the bootloader > kernel located in BIOS > flash. If the kernel and userland is ready our boot application > searches for the productive kernel > and executes it via kexec. > > Now I run in some troubles as I need to be able to boot a MSDOS > application stored on > an usb stick. I have tried grub4linux but I am not able to boot from > the usb stick - even I > see the grub command line. > > Are there some creative/working solutions for my problem? There has been some success using a modified bochs bios on real hardware in the context of coreboot. That should be loadable from linux and usable on your setup. Avoiding the DOS requirement is probably a more certain path, getting DOS going is probably more fun. Eric