fsck.cpm(1)

1FSCK.CPM(1)                      User commands                     FSCK.CPM(1)
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NAME ..

6       fsck.cpm - check a CP/M file system
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SYNOPSIS .

9       fsck.cpm [-f format] [-n] [-u] image
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DESCRIPTION .

12       fsck.cpm is used to check and repair a CP/M file system.  After reading
13       the directory, it makes two  passes.   The  first  pass  checks  extent
14       fields for range and format violations (bad status, extent number, last
15       record byte count, file name, extension, block  number,  record  count,
16       size of .COM files, time stamp format, invalid password characters, in‐
17       valid time stamp mode).  The second  pass  checks  extent  connectivity
18       (multiple allocated blocks and duplicate directory entries).
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20       fsck.cpm can not yet repair all errors.
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OPTIONS .

23       -f format
24              Use the given CP/M disk format instead of the default format.
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26       -T libdsk-type
27              libdsk driver type, e.g. tele for Teledisk images or raw for raw
28              images (requires building cpmtools with support for libdsk).
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30       -n     Open the file system read-only and do not repair any errors.
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32       -u     Show all CP/M file names in upper case.
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RETURN VALUE .

35       Upon successful completion, exit code 0 is returned.
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ERRORS .

38       Any errors are indicated by exit code 1.
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FILES .

41       /usr/share/cpmtools/diskdefs  CP/M disk format definitions
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ENVIRONMENT

44       CPMTOOLSFMT     Default format
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DIAGNOSTICS .

47       image: used/total files (n.n% non-contiguos), used/total blocks
48              No inconsistencies could be found.  The number of used files ac‐
49              tually is the number of used extents.  Since a file may use more
50              than one extent, this may be greather than the actual number  of
51              files,  but  a  correct measure would not reflect how many files
52              could still be created at most.   A  file  is  considered  frag‐
53              mented,  if sequential data blocks pointed to by the same extent
54              do not have sequential block numbers.  The number of used blocks
55              includes the blocks used for system tracks and the directory.
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AUTHORS .

58       This  program is copyright 1997–2021 Michael Haardt <michael@moria.de>.
59       The  Windows  port  is  copyright  2000,  2001,   2011   John   Elliott
60       <jce@seasip.demon.co.uk>.
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62       This program is free software; you can redistribute it and/or modify it
63       under the terms of the GNU General Public License as published  by  the
64       Free  Software Foundation; either version 3 of the License, or (at your
65       option) any later version.
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67       This program is distributed in the hope that it  will  be  useful,  but
68       WITHOUT  ANY  WARRANTY;  without  even  the  implied  warranty  of MER‐
69       CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU  General
70       Public License for more details.
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72       You should have received a copy of the GNU General Public License along
73       with this program.  If not, write  to  the  Free  Software  Foundation,
74       Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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