1 .\" $NetBSD: fsck_msdos.8,v 1.9 1997/10/17 11:19:58 ws Exp $
3 .\" Copyright (C) 1995 Wolfgang Solfrank
4 .\" Copyright (c) 1995 Martin Husemann
6 .\" Redistribution and use in source and binary forms, with or without
7 .\" modification, are permitted provided that the following conditions
9 .\" 1. Redistributions of source code must retain the above copyright
10 .\" notice, this list of conditions and the following disclaimer.
11 .\" 2. Redistributions in binary form must reproduce the above copyright
12 .\" notice, this list of conditions and the following disclaimer in the
13 .\" documentation and/or other materials provided with the distribution.
14 .\" 3. All advertising materials mentioning features or use of this software
15 .\" must display the following acknowledgement:
16 .\" This product includes software developed by Martin Husemann
17 .\" and Wolfgang Solfrank.
18 .\" 4. Neither the name of the University nor the names of its contributors
19 .\" may be used to endorse or promote products derived from this software
20 .\" without specific prior written permission.
22 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
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40 .Nd DOS/Windows (FAT) file system consistency checker
52 utility verifies and repairs
54 file systems (more commonly known
61 preens the specified file systems.
62 It is normally started by
66 during automatic reboot, when a FAT file system is detected.
67 When preening file systems,
69 will fix common inconsistencies non-interactively.
70 If more serious problems are found,
72 does not try to fix them, indicates that it was not
73 successful, and exits.
77 checks the specified file systems and tries to repair all
78 detected inconsistencies, requesting confirmation before
81 The options are as follows:
82 .Bl -tag -width indent
84 Compatibility with the wrapper
86 which seeks to determine whether the file system needs to be cleaned
87 immediately in foreground, or if its cleaning can be deferred to background.
88 FAT (MS-DOS) file systems must always be cleaned in the foreground.
89 A non-zero exit code is always returned for this option.
95 file systems when preening.
101 as the answer to all operator
105 Preen the specified file systems.
111 as the answer to all operator questions.
120 utility first appeared in