FSCK.CPM(1) User commands FSCK.CPM(1) NAME .. fsck.cpm - check a CP/M file system SYNOPSIS . fsck.cpm [-f format] [-n] [-u] 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-format] libdsk driver type, e.g. tele for Teledisk images or raw for raw im- ages (requires building cpmtools with support for libdsk). The op- tional libdsk-format argument also specifies one of libdsk's CP/M disk formats (not to be confused with the diskdef supplied to the -f option), similar to libdsk:format in diskdefs. -n Open the file system read-only and do not repair any errors. -u Show all CP/M file names in upper case. 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 actu- ally 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 1997-2023 Michael Haardt <michael@moria.de>. The Windows port is copyright 2000, 2001, 2011 John Elliott <jce@seasip.de- mon.co.uk>. This program is free software; you can redistribute it and/or modify it un- der 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 FIT- NESS 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 March 15, 2026 FSCK.CPM(1)
NAME .. | SYNOPSIS . | DESCRIPTION . | OPTIONS . | RETURN VALUE . | ERRORS . | FILES . | ENVIRONMENT | DIAGNOSTICS . | AUTHORS . | SEE ALSO .
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