From owner-freebsd-questions@FreeBSD.ORG Mon Jan 31 08:45:06 2005 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id EF24716A4CE for ; Mon, 31 Jan 2005 08:45:06 +0000 (GMT) Received: from ptb-relay02.plus.net (ptb-relay02.plus.net [212.159.14.213]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7AC5643D1F for ; Mon, 31 Jan 2005 08:45:06 +0000 (GMT) (envelope-from marko@freebsd.org) Received: from [80.229.231.20] (helo=postbag.localdomain) by ptb-relay02.plus.net with esmtp (Exim) id 1CvXB9-000Pgd-Q9; Mon, 31 Jan 2005 08:45:03 +0000 Received: from [127.0.0.1] (red-shift [192.168.1.3]) by postbag.localdomain (Postfix) with ESMTP id BB83462; Mon, 31 Jan 2005 08:49:09 +0000 (GMT) Message-ID: <41FDEFE7.1090204@freebsd.org> Date: Mon, 31 Jan 2005 08:44:23 +0000 From: Mark Ovens User-Agent: Mozilla Thunderbird 7.0 (Windows/20050113) X-Accept-Language: en-us, en MIME-Version: 1.0 To: rax@rakhesh.com References: <38b3f6e40501292247696b96b@mail.gmail.com> <38b3f6e4050129231132f8e743@mail.gmail.com> <41FCA314.3070602@netcabo.pt> <38b3f6e4050130033551e43818@mail.gmail.com> <20050130120618.GA21695@alzatex.com> <38b3f6e4050130235957c049c2@mail.gmail.com> In-Reply-To: <38b3f6e4050130235957c049c2@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Antivirus: avast! (VPS 0504-4, 28/01/2005), Outbound message X-Antivirus-Status: Clean cc: "Loren M. Lang" cc: freebsd-questions@freebsd.org cc: Joe Kraft Subject: Re: Booting FreeBSD-5.3 from NTLDR X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Jan 2005 08:45:07 -0000 Rakhesh Sasidharan wrote: >> No, boot0 is just a normal file that is 512 bytes long. There is >> nothing special about it. In it is a bootloader program that can be >> used to boot FreeBSD, and if you run it during boot, it will read the >> partition table and look for all OSes. I think it will modify the >> partition table, though, marking the last OS you booted into, but that's >> the program running doing that, the file itself is harmless. > > Ok. I must have used some other command then, which resulted in my > first disk MBR getting over-written ... strange. :-/ > > By the way, does the fact that NTLDR is on my first disk, while > FreeBSD (and hence its MBR boot0) is on my second disk complicate > matters? I mean, you mention boot0 will modify my partition table to > reflect which OS was booted last -- will it by any chance modify the > partition table on the first disk and hence mess it? > > Yes and yes, http://www.freebsd.org/doc/en_US.ISO8859-1/books/faq/disks.html#NT-BOOTLOADER Regards, Mark --- avast! Antivirus: Outbound message clean. Virus Database (VPS): 0504-4, 28/01/2005 Tested on: 31/01/2005 08:44:24 avast! - copyright (c) 2000-2004 ALWIL Software. http://www.avast.com