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authorJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 19:55:15 -0400
committerJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 19:55:15 -0400
commit253e67c8b3a72b3a4757fdbc5845297628db0a4a (patch)
treeadf53b66087aa30dfbf8bf391a1dadb044c3bf4d /static/netbsd/man8/mmcformat.8
parenta9157ce950dfe2fc30795d43b9d79b9d1bffc48b (diff)
docs: Added All NetBSD Manuals
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+.\" $NetBSD: mmcformat.8,v 1.6 2014/03/18 18:20:47 riastradh Exp $
+.\"
+.\" Copyright (c) 2008 Reinoud Zandijk
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in
+.\" the documentation and/or other materials provided with the
+.\" distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS
+.\" OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY
+.\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+.\" GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+.\" IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+.\" OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+.\" IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\"
+.Dd May 9, 2008
+.Dt MMCFORMAT 8
+.Os
+.Sh NAME
+.Nm mmcformat
+.Nd format optical media
+.Sh SYNOPSIS
+.Nm
+.Op Fl BDFGHhIMOpRrSsw
+.Op Fl b Ar blockingnr
+.Op Fl c Ar cert-num
+.\" .Op X format is not implemented yet
+.Ar special
+.Sh DESCRIPTION
+The
+.Nm
+utility formats optical media conforming to the MMC standard.
+This includes CD, DVD, and Blu-Ray (BD) media.
+.Pp
+The options are as follows:
+.Bl -tag -width XbXblockingnrXX
+.It Fl B
+Blank media when possible before formatting it.
+.It Fl b Ar blockingnr
+Explicitly select packet size in sectors
+.Pq for CD-RW only .
+It is not recommended to change this from its default of 32.
+.It Fl c Ar cert-num
+Certify media for DVD-RAM / DV-RE.
+The argument cert-num specifies:
+.Bl -tag -offset indent
+.It 0
+no certification
+.It 1
+full certification
+.It 2
+quick certification
+.El
+.It Fl D
+Debug mode.
+Print all SCSI/ATAPI command errors.
+.It Fl F
+Format media.
+.It Fl G
+Grow last CD-RW/DVD-RW session.
+.It Fl H
+Show help and print formatting choices for the inserted media.
+.It Fl h
+Show help and print formatting choices for the inserted media.
+.It Fl I
+Show help and print formatting choices for the inserted media.
+.It Fl M
+Select MRW (Mount Rainier) error correcting background format.
+.It Fl O
+Old style CD-RW formatting; recommended for CD-RW.
+.It Fl p
+Explicitly set packet format.
+.It Fl R
+Restart previously stopped MCD-MRW or DVD+RW background format.
+.It Fl r
+Recompile defect list for DVD-RAM.
+.It Fl S
+Grow spare space DVD-RAM / BD-RE.
+.It Fl s
+Format DVD+MRW / BD-RE with extra spare space.
+.It Fl w
+Wait until completion of background format.
+.El
+.Sh NOTES
+Due to the enormous varieties in optical media,
+.Nm
+is made as generic as possible.
+This can result in confusion.
+.Sh EXAMPLES
+.Dl Ic mmcformat -B -O /dev/rcd0d
+.Pp
+Blanks and then formats a CD-RW disc using the
+.Dq old style
+format command.
+It is recommended to use this
+.Dq old style
+command unless your drive reports that it's not supported; in that case, resort
+to the default
+.Fl F .
+Note that a CD-RW disc can be reformatted without being blanked.
+Blanking switches between sequential and fixed packet writing by
+erasing the disc.
+This can also help to revive old discs.
+.Pp
+.Dl Ic mmcformat -F -M /dev/rcd0d
+.Pp
+Format a CD-RW or a DVD+RW to use MRW (Mount Rainier).
+This format tries to hide media flaws as much as possible by
+relocation.
+.Sh SEE ALSO
+.Xr scsictl 8
+.Sh HISTORY
+The
+.Nm
+command first appeared in
+.Nx 5.0 .
+.Sh AUTHORS
+.An Reinoud Zandijk Aq Mt reinoud@NetBSD.org
+.Sh BUGS
+.Nm
+could be merged with
+.Xr scsictl 8
+but that tool is very hard disk oriented.