1createhdf(1)                       Emulators                      createhdf(1)
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NAME

8       createhdf — Create a blank IDE hard disk image in .hdf format
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SYNOPSIS

11       createhdf [ -c ] [ -s ] [-v version] cylinders heads sectors file
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DESCRIPTION

14       createhdf  creates a blank image of an IDE hard disk in .hdf format for
15       use with Sinclair ZX Spectrum emulators.
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OPTIONS

18       -c     specifies that the .hdf image should  be  created  in  `compact'
19              mode,  where  only  the  low byte of every word is stored in the
20              image. This is useful for saving space if the hard disk image is
21              for  use  with  an interface which accesses only the low byte of
22              every word.
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24       -s     specifies that the .hdf image should not be created as a  sparse
25              file.  Normally,  createhdf will attempt to create the hard disk
26              image as a `sparse file', where the operating system knows  that
27              the  file consists mostly of zero bytes and fills those in with‐
28              out using any space in the  file.  This  option  disables  this.
29              (There's  nothing  `magic' about this: if data is written to the
30              file, it will take up space just like any other data; it's  only
31              empty space which is synthesised by the operating system).
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33       -v version
34              specifies  the version of .hdf image to be created. Valid values
35              are `1.0' for a version 1.0 file and `1.1'  for  a  version  1.1
36              file. Defaults to creating version 1.1 files.
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38       -h, --help
39              give brief usage help, listing available options.
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41       -V, --version
42              output version information.
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44       cylinders
45              specifies the number of cylinders in the image.
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47       heads  specifies the number of heads in the image.
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49       sectors
50              specifies the number of sectors in the image.
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52       file   specifies the file to which the image should be written.
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BUGS

55       None known.
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SEE ALSO

58       fuse(1), fuse-utils(1), libspectrum(3)
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60       The .hdf format specification, at
61       http://www.zxshed.co.uk/sinclairfaq/index.php5?title=HDF_format.
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63       The comp.sys.sinclair Spectrum FAQ, at
64       http://www.worldofspectrum.org/faq/index.html.
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AUTHOR

67       Philip Kendall (philip-fuse@shadowmagic.org.uk).
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71Version 1.4.2                   3rd June, 2018                    createhdf(1)
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