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

NAME ..
       fsck.cpm - check a CP/M file system

SYNOPSIS .
       fsck.cpm [-f format] [-n] image

DESCRIPTION .
       fsck.cpm is used to check and repair a CP/M file system.  After reading
       the directory, it makes two passes.  The first pass checks extent
       fields for range and format violations (bad status, extent number, last
       record byte count, file name, extension, block number, record count,
       size of .COM files, time stamp format, invalid password characters,
       invalid time stamp mode).  The second pass checks extent connectivity
       (multiple allocated blocks and duplicate directory entries).

       fsck.cpm can not yet repair all errors.

OPTIONS .
       -f format
              Use the given CP/M disk format instead of the default format.

       -T libdsk-type
              libdsk driver type, e.g. tele for Teledisk images or raw for raw
              images (requires building cpmtools with support for libdsk).

       -n     Open the file system read-only and do not repair any errors.

RETURN VALUE .
       Upon successful completion, exit code 0 is returned.

ERRORS .
       Any errors are indicated by exit code 1.

FILES .
       /usr/local/share/cpmtools2/diskdefs     CP/M disk format definitions


ENVIRONMENT

       CPMTOOLSFMT     Default format

DIAGNOSTICS .
       image: used/total files (n.n% non-contiguos), used/total blocks
              No inconsistencies could be found.  The number of used files
              actually is the number of used extents.  Since a file may use
              more than one extent, this may be greather than the actual
              number of files, but a correct measure would not reflect how
              many files could still be created at most.  A file is considered
              fragmented, if sequential data blocks pointed to by the same
              extent do not have sequential block numbers.  The number of used
              blocks includes the blocks used for system tracks and the
              directory.

AUTHORS .
       This program is copyright 1997-2012 Michael Haardt <michael@moria.de>.
       The Windows port is copyright 2000, 2001, 2011 John Elliott
       <jce@seasip.demon.co.uk>.

       This program is free software; you can redistribute it and/or modify it
       under the terms of the GNU General Public License as published by the
       Free Software Foundation; either version 3 of the License, or (at your
       option) any later version.

       This program is distributed in the hope that it will be useful, but
       WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
       General Public License for more details.

       You should have received a copy of the GNU General Public License along
       with this program.  If not, write to the Free Software Foundation,
       Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

SEE ALSO .
       fsck(8), mkfs.cpm(1), cpm(5)

CP/M tools                     October 25, 2014                    FSCK.CPM(1)

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