From owner-freebsd-questions Thu Apr 18 19:15:24 2002 Delivered-To: freebsd-questions@freebsd.org Received: from russian-caravan.cloud9.net (russian-caravan.cloud9.net [168.100.1.4]) by hub.freebsd.org (Postfix) with ESMTP id 9762737B417 for ; Thu, 18 Apr 2002 19:15:18 -0700 (PDT) Received: from earl-grey.cloud9.net (earl-grey.cloud9.net [168.100.1.1]) by russian-caravan.cloud9.net (Postfix) with ESMTP id 4C37928D7C; Thu, 18 Apr 2002 22:15:18 -0400 (EDT) Date: Thu, 18 Apr 2002 22:15:18 -0400 (EDT) From: Peter Leftwich X-X-Sender: To: Mike Meyer Cc: Patrick O'Reilly , mpd , FreeBSD Questions Subject: Re: MBR, mfsroot.flp, handbook, and list fail me.. FRUSTRATION!!!!! In-Reply-To: <15550.23759.751462.189341@guru.mired.org> Message-ID: <20020418220655.S96175-100000@earl-grey.cloud9.net> Organization: Video2Video Services - http://Www.Video2Video.Com MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Thu, 18 Apr 2002, Mike Meyer wrote: > In <20020411200205.B76458-100000@earl-grey.cloud9.net>, Peter Leftwich typed: > > Can a command similar to 'boot0cfg -B ad0' be issued effectively while logged in regularly to the box, as root, or must I boot to a floppy? > You have to be root. You answered one part of a two-part question. Can I be logged in regularly as root, or must I boot up to a floppy or CDROM to repair the MBR to my liking? > > Is there any risk of munging an entire system when tossing around fdisk and bootcfg commands? Do I have to "relabel" slices as bootable in /stand/sysinstall or just use `fdisk -B [device containing Fbsd OS here]` ? > boot0cfg should be save. If you give the wrong argument to fdisk, you can destroy the partition information. > Mike Meyer http://www.mired.org/home/mwm/ > Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information. I don't know what I'm doing, and the instructions for boot0cfg and fdisk are NOT COMPLETE (the handbook is very lacking in this department too). When I recently got the boot0cfg command to run, it told me "Device busy." To reiterate what I am trying to do -- My computer has just one HD, but (among others) the two partitions listed below: /dev/ad0s2a on / (ufs, local) /dev/ad0s1 on /msdos (msdos, local) IS there a command to use the standard MBR manager (no F1, F2, etc.. menu) *and* boot directly, automatically to /dev/ad0s2a but keep /dev/ad0s1 (/msdos) mountable? THANKS. *sigh* *grumble* -- Peter Leftwich President & Founder Video2Video Services Box 13692, La Jolla, CA, 92039 USA +1-413-403-9555 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message