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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/man1/fdformat.1
parenta9157ce950dfe2fc30795d43b9d79b9d1bffc48b (diff)
docs: Added All NetBSD Manuals
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+.\" $NetBSD: fdformat.1,v 1.18 2012/04/08 22:00:38 wiz Exp $
+.\"
+.\" Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to The NetBSD Foundation
+.\" by John Kohl.
+.\"
+.\" 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+.\" ``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 FOUNDATION OR CONTRIBUTORS
+.\" 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 July 22, 2006
+.Dt FDFORMAT 1
+.Os
+.Sh NAME
+.Nm fdformat
+.Nd format a floppy diskette
+.Sh SYNOPSIS
+.Nm
+.Op Fl n
+.Op Fl B Ar nbps
+.Op Fl C Ar ncyl
+.Op Fl F Ar fillbyte
+.Op Fl f Ar device
+.Op Fl G Ar gaplen
+.Op Fl I Ar interleave
+.Op Fl P Ar stepspercyl
+.Op Fl S Ar nspt
+.Op Fl T Ar ntrk
+.Op Fl t Ar type
+.Op Fl X Ar xfer_rate
+.Sh DESCRIPTION
+The
+.Nm
+utility formats a floppy diskette.
+With no arguments, it formats the default floppy device with the default
+density parameters (as provided by the floppy diskette device driver).
+.Pp
+As the each track of the floppy diskette is formatted, it is read to
+verify the format was successful.
+.Pp
+The
+.Nm
+utility does not create a filesystem of any kind.
+Use tools like
+.Xr newfs 8 ,
+.Xr newfs_msdos 8 ,
+or
+.Xr mformat 1
+(part of the pkgsrc/sysutils/mtools package) depending on what filesystem
+type you want to use on the floppy disk to do so.
+.Pp
+Available command-line flags are:
+.Bl -tag -width indent -compact
+.It Fl f Ar device
+Format the floppy using
+.Ar device
+instead of the default
+.Pa /dev/rfd0a .
+.It Fl t Ar type
+Format the floppy using parameters for the diskette named
+.Ar type
+in
+.Pa /etc/floppytab
+instead of the device default parameters.
+.It Fl n
+Do not verify each track as it is read.
+.It Fl B Ar nbps
+Set the number of bytes per sector for the formatted diskette.
+.It Fl S Ar nspt
+Set the number of sectors per track for the formatted diskette.
+.It Fl T Ar ntrk
+Set the number of tracks (heads) per cylinder for the formatted diskette.
+.It Fl C Ar ncyl
+Set the number of cylinders for the formatted diskette.
+.It Fl P Ar stepspercyl
+Set the number of motor steps per cylinder for the formatted diskette.
+.It Fl G Ar gaplen
+Set the sector gap length for the formatted diskette.
+.It Fl F Ar fillbyte
+Set the fill byte for the formatted diskette.
+.It Fl X Ar xfer_rate
+Set the bit transfer rate for the formatted diskette.
+.It Fl I Ar interleave
+Set the interleave factor for the formatted diskette.
+.El
+.Sh SEE ALSO
+.Xr fdc 4
+(amiga, i386 and sparc ports)
+.Sh HISTORY
+The
+.Nm
+utility appeared in
+.Nx 1.3 .
+.Sh BUGS
+Some floppy drive units have physical
+diskette format sensors which automatically select a diskette
+density for reading.
+Such drives can format at alternate densities, but
+they cannot successfully verify the formatted diskette except at the
+diskette's normal density.