xdfcopy - Program to copy and format Xdf disks in Linux
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xdfcopy [-format-id] [-d] [-n] [-h head-skew] [-t cylinder-skew] [-T
end-cylinder] [source] target
Xdfcopy is a utility to copy and format XDF disks. XDF (eXtended Density
Format) is a format used by OS/2 which can hold 1840KB of data (on
a 3 1/2 high density disk). Its advantage over 2m formats is that it is
faster: 38KB/s. Because of this fast speed, I extended the XDF standard
to higher capacities (1992KB) with a transfer rate of 45KB/s. I called
the new formats XXDF.
This program works best with kernels newer than 2.0.0.
If both source and target are given, xdfcopy copies the disk image from
file to floppy disk or vice-versa. When copying to a floppy disk, the
disk is first formatted, unless the -n option is given.
If no source is given, the target is only formatted. In this case, the
target must be a floppy drive.
Selecting a format
Formats are selected by the format_id. The following formats are understood:
0 Formats a 5 1/4 XDF disk (1520 KB, 45.6 KB/s).
1 Formats a 3 1/2 high density XDF disk (1840 KB, 38.3 KB/s).
2 Formats a 3 1/2 extra density XDF disk (3680 KB, 102 KB/s)
3 Formats a 3 1/2 high density XXDF disk (1920 KB, 45 KB/s)
4 Formats a 3 1/2 extra density XXDF disk (3840 KB, 90 KB/s)
-D dosdrive
Describes the DOS drive letter for mformat. If this option is
given, an MS-DOS filesystem is automatically installed on the
disk after the low-level format is complete. In order for this
to work, the drive has to be configured to accept the 23x2x80
geometry in your /etc/mtools or your ~/.mtoolsrc file. Moreover,
this only works with a version of mtools that is more recent
than 3.0.
Example of a working mtoolsrc line:
A /dev/fd0 0 0 0 0
Examples of a non-working mtoolsrc line:
A /dev/fd0 12 80 2 18
-n Don't format the disk before copying the disk image to the disk.
Options for power users [Toc] [Back] -t cylinder skew
Uses a different track skew than the default (14). For more
details on skews, see section superformat. In this version of
xdfcopy, the -t parameter is ignored.
-h head skew
Uses a different head skew than the default (0) In this version,
this parameter is ignored
-d Debugging. For each read or write operation, the time it took to
complete the operation is printed (in milliseconds). This can be
used to optimize the skews.
-T end-cylinders
Tells how many cylinders to format. With the XXDF formats, it
is actually possible to format up to 83 cylinders, yielding a
format of up to 1992KB on a 3 1/2 high density disk.
Fdutils' texinfo doc
fdutils-5.3 02Jul99 xdfcopy(1)
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