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1.\" Copyright 1992, 1993 Rickard E. Faith (faith@cs.unc.edu)
2.\" May be distributed under the GNU General Public License
98aa9c81 3.TH FDFORMAT 8 "June 2020" "util-linux" "System Administration"
6dbe3af9 4.SH NAME
232dc924 5fdformat \- low-level format a floppy disk
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6.SH SYNOPSIS
7.B fdformat
f49ccec2 8.RI [options] " device"
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9.SH DESCRIPTION
10.B fdformat
449a215f 11does a low-level format on a floppy disk.
6dbe3af9 12.I device
449a215f 13is usually one of the following (for floppy devices the major = 2, and the
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14minor is shown for informational purposes only):
15.sp
16.nf
17.RS
18/dev/fd0d360 (minor = 4)
19/dev/fd0h1200 (minor = 8)
20/dev/fd0D360 (minor = 12)
21/dev/fd0H360 (minor = 12)
22/dev/fd0D720 (minor = 16)
23/dev/fd0H720 (minor = 16)
24/dev/fd0h360 (minor = 20)
25/dev/fd0h720 (minor = 24)
26/dev/fd0H1440 (minor = 28)
99ba55ef 27.PP
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28/dev/fd1d360 (minor = 5)
29/dev/fd1h1200 (minor = 9)
30/dev/fd1D360 (minor = 13)
31/dev/fd1H360 (minor = 13)
32/dev/fd1D720 (minor = 17)
33/dev/fd1H720 (minor = 17)
34/dev/fd1h360 (minor = 21)
35/dev/fd1h720 (minor = 25)
36/dev/fd1H1440 (minor = 29)
37.RE
38.fi
99ba55ef 39.PP
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40The generic floppy devices, /dev/fd0 and /dev/fd1, will fail to work with
41.B fdformat
42when a non-standard format is being used, or if the format has not been
43autodetected earlier. In this case, use
44.BR setfdprm (8)
45to load the disk parameters.
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46.SH OPTIONS
47.TP
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48\fB\-f\fR, \fB\-\-from\fR \fIN\fR
49Start at the track \fIN\fR (default is 0).
50.TP
51\fB\-t\fR, \fB\-\-to\fR \fIN\fR
0cbdf6e2 52Stop at the track \fIN\fR.
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53.TP
54\fB\-r\fR, \fB\-\-repair\fR \fIN\fR
55Try to repair tracks failed during the verification (max \fIN\fR retries).
56.TP
b06c1ca6 57\fB\-n\fR, \fB\-\-no\-verify\fR
449a215f 58Skip the verification that is normally performed after the formatting.
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59.TP
60\fB\-V\fR, \fB\-\-version\fR
b4362b6f 61Display version information and exit.
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62.TP
63\fB\-h\fR, \fB\-\-help\fR
b4362b6f 64Display help text and exit.
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65.SH NOTES
66This utility does not handle USB floppy disk drives. Use
67.BR ufiformat (8)
68instead.
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69.SH AUTHORS
70Werner Almesberger (almesber@nessie.cs.id.ethz.ch)
5a829806 71.SH SEE ALSO
6dbe3af9 72.BR fd (4),
f053ff1e 73.BR emkfs (8),
6dbe3af9 74.BR mkfs (8),
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75.BR setfdprm (8),
76.BR ufiformat (8)
86d62711 77.SH AVAILABILITY
601d12fb 78The fdformat command is part of the util-linux package and is available from
d673b74e 79https://www.kernel.org/pub/linux/utils/util-linux/.