1FSCK.CPM(1) User commands FSCK.CPM(1)
2
3
4
6 fsck.cpm - check a CP/M file system
7
9 fsck.cpm [-f format] [-n] image
10
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,
17 invalid time stamp mode). The second pass checks extent connectivity
18 (multiple allocated blocks and duplicate directory entries).
19
20 fsck.cpm can not yet repair all errors.
21
23 -f format
24 Use the given CP/M disk format instead of the default format.
25
26 -n Open the file system read-only and do not repair any errors.
27
29 Upon successful completion, exit code 0 is returned.
30
32 Any errors are indicated by exit code 1.
33
35 /usr/share/cpmtools/diskdefs CP/M disk format definitions
36
38 image: used/total files (n.n% non-contiguos), used/total blocks
39 No inconsistencies could be found. The number of used files
40 actually is the number of used extents. Since a file may use
41 more than one extent, this may be greather than the actual num‐
42 ber of files, but a correct measure would not reflect how many
43 files could still be created at most. A file is considered
44 fragmented, if sequential data blocks pointed to by the same
45 extent do not have sequential block numbers. The number of used
46 blocks includes the blocks used for system tracks and the direc‐
47 tory.
48
50 This program is copyright 1997–2009 Michael Haardt <michael@moria.de>.
51 The Windows port is copyright 2000, 2001 John Elliott
52 <jce@seasip.demon.co.uk>.
53
54 This program is free software; you can redistribute it and/or modify it
55 under the terms of the GNU General Public License as published by the
56 Free Software Foundation; either version 3 of the License, or (at your
57 option) any later version.
58
59 This program is distributed in the hope that it will be useful, but
60 WITHOUT ANY WARRANTY; without even the implied warranty of MER‐
61 CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
62 Public License for more details.
63
64 You should have received a copy of the GNU General Public License along
65 with this program. If not, write to the Free Software Foundation,
66 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
67
69 fsck(8), mkfs.cpm(1), cpm(5)
70
71
72
73CP/M tools December 20, 2009 FSCK.CPM(1)