105 lines
3.4 KiB
Groff
105 lines
3.4 KiB
Groff
.\" Copyright (C) 1998 Wolfgang Solfrank.
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.\" Copyright (C) 1998 TooLs GmbH.
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by TooLs GmbH.
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.\" 4. The name of TooLs GmbH may not be used to endorse or promote products
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.\" derived from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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.\" PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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.\" OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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.\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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.\" OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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.\" ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" $NetBSD: mbrlabel.8,v 1.9 2001/05/01 11:51:21 lukem Exp $
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.\"
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.Dd May 1, 2001
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.Dt MBRLABEL 8
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.Os
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.Sh NAME
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.Nm mbrlabel
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.Nd update disk label from MBR label(s)
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.Sh SYNOPSIS
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.Nm
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.Op Fl fqrw
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.Ar device
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.Sh DESCRIPTION
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.Nm
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is used to update a
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.Nx
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disk label from the Master Boot Record (MBR) label(s) found
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on disks that were previously used on DOS/Windows systems (or
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other MBR using systems).
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.Pp
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.Nm
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scans the MBR contained in the very first block of the disk,
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then walks through every extended partition found and generating
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additional partition entries for the disk from the MBRs found in
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those extended partitions.
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.Pp
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Each MBR partition which does not have an equivalent partition in the
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disk label (equivalent in having the same size and offset) is added to
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the first free partition slot in the disk label. A free
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partition slot is defined as one with an
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.Dv fstype
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of
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.Sq Li unused
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and a
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.Dv size
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of zero
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.Pq Sq 0 .
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If there are not enough free slots in the disk label, a warning
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will be issued.
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.Pp
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The raw partition (typically partition
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.Em c ,
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but
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.Em d
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on i386 and some othe platforms) is left alone during this process.
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.Pp
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By default, the proposed changed disk label will be displayed and no
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disk label update will occur.
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.Pp
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Available options:
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.Pp
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.Bl -tag -width indent
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.It Fl f
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Force an update, even if there has been no change.
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.It Fl q
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Performs operations in a quiet fashion.
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.It Fl r
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When used with
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.Fl w ,
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update the on-disk label as well as the in-core label if it has
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changed.
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.It Fl w
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If it has changed, update the in-core label, and then if
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.Fl r
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is given, update the on-disk label as well.
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.El
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.Pp
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.Sh SEE ALSO
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.Xr disklabel 8 ,
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.Xr fdisk 8
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.Sh HISTORY
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The
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.Nm
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command appeared in
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.Nx 1.4 .
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