From owner-freebsd-stable@FreeBSD.ORG Sat Nov 18 18:33:35 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id C51AD16A4FD for ; Sat, 18 Nov 2006 18:33:35 +0000 (UTC) (envelope-from 000.fbsd@quip.cz) Received: from slimak.dkm.cz (slimak.dkm.cz [62.24.64.34]) by mx1.FreeBSD.org (Postfix) with SMTP id 28D5F43D5D for ; Sat, 18 Nov 2006 18:32:33 +0000 (GMT) (envelope-from 000.fbsd@quip.cz) Received: (qmail 91246 invoked by uid 0); 18 Nov 2006 18:32:36 -0000 Received: from grimm.quip.cz (HELO ?192.168.1.2?) (213.220.192.218) by slimak.dkm.cz with SMTP; 18 Nov 2006 18:32:35 -0000 Message-ID: <455F51BA.2090607@quip.cz> Date: Sat, 18 Nov 2006 19:32:26 +0100 From: Miroslav Lachman <000.fbsd@quip.cz> User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.12) Gecko/20050915 X-Accept-Language: cz, cs, en, en-us MIME-Version: 1.0 To: freebsd-stable@freebsd.org References: <15af975d0609212321r29fdd287p462ae0f2b7e404b4@mail.gmail.com> <15af975d0609220725s1206d7ebr53589adbc1b9c17@mail.gmail.com> <4513F5B0.9030300@goodforbusiness.co.uk> <200609261305.12224.jhb@freebsd.org> <451A3E33.8010805@goodforbusiness.co.uk> <45382F43.6020509@FreeBSD.org> In-Reply-To: <45382F43.6020509@FreeBSD.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: "Bruce M. Simpson" Subject: Re: bug on BTX X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 18 Nov 2006 18:33:35 -0000 Hi all, Bruce M. Simpson wrote: > It would be a good thing to solve the real mode problem, as it would > enable FreeBSD to be booted from memory stick, USB CDROM, and within > QEMU without resorting to the current workarounds e.g. using GRUB or > skipping /boot/loader entirely to boot the kernel directly as I > currently do in QEMU virtualization. [...] > Indeed I recently ran into this myself. Certain 1U machines which I > acquired had problems booting from USB CDROM. I traced this back to the > USB BIOS trying to LGDT and causing a general protection fault in vm86 > mode. I worked around this by PXE booting them on a private VLAN with > most helpful assistance from dwhite@. [...] Is there any progress in fixing FreeBSD bootloader to be able to boot from USB devices? Any patches available which can I test? Or are there any possible workaround to make FreeBSD bootable from USB flashdrive in any machine? (I can boot from USB flashdrive and USB DVD-RW on my home PC and notebook, but can not boot HP DL140 and Sun Fire X2100 servers ;[) Miroslav Lachman