fsck.cpm.1

.TH FSCK.CPM 1 "Jan 23, 2019" "CP/M tools" "User commands"
.SH NAME ..\"{{{roff}}}\"{{{
fsck.cpm \- check a CP/M file system
.\"}}}
.SH SYNOPSIS .\"{{{
.ad l
.B fsck.cpm
.RB [ \-f
.IR format ]
.RB [ \-n ]
.I image
.ad b
.\"}}}
.SH DESCRIPTION .\"{{{
\fBfsck.cpm\fP 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).
.P
\fBfsck.cpm\fP can not yet repair all errors.
.\"}}}
.SH OPTIONS .\"{{{
.IP "\fB\-f\fP \fIformat\fP"
Use the given CP/M disk \fIformat\fP instead of the default format.
.IP "\fB\-T\fP \fIlibdsk-type\fP"
libdsk driver type, e.g. \fBtele\fP for Teledisk images or \fBraw\fP for raw images 
(requires building cpmtools with support for libdsk).
.IP "\fB\-n\fP"
Open the file system read-only and do not repair any errors.
.\"}}}
.SH "RETURN VALUE" .\"{{{
Upon successful completion, exit code 0 is returned.
.\"}}}
.SH ERRORS .\"{{{
Any errors are indicated by exit code 1.
.\"}}}
.SH FILES .\"{{{
${prefix}/share/diskdefs	CP/M disk format definitions
.\"}}}
.SH ENVIRONMENT \"{{{
CPMTOOLSFMT     Default format
.\"}}}
.SH DIAGNOSTICS .\"{{{
.IP "\fIimage\fP: \fIused\fP/\fItotal\fP files (\fIn\fP.\fIn\fP% non-contiguos), \fIused\fP/\fItotal\fP 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.
.\"}}}
.SH AUTHORS .\"{{{
This program is copyright 1997\(en2012 Michael Haardt
<michael@moria.de>.  The Windows port is copyright 2000, 2001, 2011 John Elliott
<jce@seasip.demon.co.uk>.
.PP
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.
.PP
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.
.PP
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.
.\"}}}
.SH "SEE ALSO" .\"{{{
.IR fsck (8),
.IR mkfs.cpm (1),
.IR cpm (5)
.\"}}}