1dskdump(1)                         Emulators                        dskdump(1)
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NAME

6       dskdump - Sector-level copy from one floppy or image file to another
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SYNOPSIS

9       dskdump [-itype TYPE] [-otype TYPE] [-iside SIDE] [-oside SIDE] [-icomp
10       COMP] [-ocomp COMP] [-idstep] [-odstep] [-retry  COUNT]  [-format  FMT]
11       [-first CYLINDER] [-last CYLINDER] INPUT-IMAGE OUTPUT-IMAGE

DESCRIPTION

13       Dskdump  copies  floppy  discs  or  images, optionally converting image
14       types.  Unlike dsktrans(1), dskdump can  handle  discs  with  different
15       numbers or sizes of sector on different tracks.
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OPTIONS

18       -itype TYPE
19              Determines  which  driver  is to be used to read from the source
20              disc.
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22              auto    Select according to the disc image  file.  This  is  the
23                      default.
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25              dsk     Use the DSK (CPCEmu format) image driver.
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27              edsk    Use the extended version of the DSK format.
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29              floppy  Use the floppy driver.
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31              myz80   Use  the  hard  disk (MYZ80 format) image driver.  (This
32                      format cannot be autodetected.)
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34              cfi     Use the CFI (DOS fdcopy  format)  image  driver.   (This
35                      format cannot be autodetected.)
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37              apridisk
38                      Use  the  ApriDisk image driver (from the utility of the
39                      same name).  (This format cannot be autodetected.)
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41              raw     Use the raw driver.
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44       -otype TYPE
45              Determines which driver is to be used to write to  the  destina‐
46              tion disc. The drivers are as for -itype.
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49       -icomp COMP
50              Select the compression method used on the source disc image file
51              (has no effect when reading a floppy disc).
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53              auto    Detect from the first few bytes of the file. This is the
54                      default.
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56              sq      Huffman coded (SQ / USQ).
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58              gz      Gzipped (gzip / gunzip).
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60              bz2     Burrows-Wheeler compressed (bzip2 / bunzip2).
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63       -ocomp COMP
64              Select the compression to be used on output. Compression methods
65              are as for -icomp, except that bz2 cannot be used.
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68       -iside SIDE
69              Determines which side (0 or 1) of the source disc is to be  read
70              from.
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73       -oside SIDE
74              Determines  which side (0 or 1) of the destination disc is to be
75              written to.
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78       -idstep
79              Double-step the source drive (used to read 360k discs  in  1.2Mb
80              drives). Only supported by the Linux floppy driver.
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83       -odstep
84              Double-step  the  destination drive (used to write 360k discs in
85              1.2Mb drives).  Only supported by the Linux floppy driver.
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88       -retry COUNT
89              Set the number of times to attempt a read/write/format  in  case
90              of error.
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93       -format FMT
94              Do  not  autodetect  the  disc  format;  use  the  named format.
95              dskdump does not make extensive use of the disc  format;  it  is
96              chiefly used to provide a guess at the number of tracks to dump.
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99       -first CYL
100              Start copying at the specified cylinder. Cylinders prior to this
101              will not be formatted or written.
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104       -last CYL
105              Copy up to and including the specified cylinder.
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108       -odstep
109              Double-step the destination drive (used to write 360k  discs  in
110              1.2Mb drives).  Only supported by the Linux floppy driver.
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SEE ALSO

113       dsktrans(1)
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AUTHOR

116       John Elliott <jce@seasip.demon.co.uk>.
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120Version 1.2.1                   23 January 2008                     dskdump(1)