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Annotation of 43BSDTahoe/man/man8/icheck.8, revision 1.1.1.1

1.1       root        1: .\" Copyright (c) 1980 Regents of the University of California.
                      2: .\" All rights reserved.  The Berkeley software License Agreement
                      3: .\" specifies the terms and conditions for redistribution.
                      4: .\"
                      5: .\"    @(#)icheck.8    6.2 (Berkeley) 5/2/88
                      6: .\"
                      7: .TH ICHECK 8 "May 2, 1988"
                      8: .UC 4
                      9: .SH NAME
                     10: icheck \- file system storage consistency check
                     11: .SH SYNOPSIS
                     12: .B /etc/icheck
                     13: [
                     14: .B \-b
                     15: numbers ]
                     16: [ filesystem ]
                     17: .SH DESCRIPTION
                     18: .B N.B.:
                     19: .I Icheck
                     20: is obsoleted for normal consistency checking by
                     21: .IR fsck (8).
                     22: .PP
                     23: .I Icheck
                     24: examines a file system,
                     25: builds a bit map of used blocks,
                     26: and compares this bit map against
                     27: the free map maintained on the file system.
                     28: If the file system is not specified,
                     29: a set of default file systems
                     30: is checked.
                     31: The normal output of
                     32: .I icheck
                     33: includes a report of
                     34: .IP ""
                     35: The total number of files and the numbers of
                     36: regular, directory, block special and character special files.
                     37: .IP ""
                     38: The total number of blocks in use and the numbers of 
                     39: single-, double-, and triple-indirect blocks and directory blocks.
                     40: .IP ""
                     41: The number of free blocks.
                     42: .IP ""
                     43: The number of blocks missing; i.e. not in any file
                     44: nor in any free map.
                     45: .PP
                     46: Following the
                     47: .B \-b
                     48: option is a list of block numbers;
                     49: whenever any of the named blocks turns up in a file,
                     50: a diagnostic is produced.
                     51: .PP
                     52: .I Icheck
                     53: is faster if the raw version of the special file is used,
                     54: since it reads the i-list many blocks at a time.
                     55: .SH FILES
                     56: Default file systems vary with installation.
                     57: .SH "SEE ALSO"
                     58: fsck(8), dcheck(8), ncheck(8),
                     59: fs(5), clri(8)
                     60: .SH DIAGNOSTICS
                     61: For duplicate blocks
                     62: and bad blocks (which lie outside the file system)
                     63: .I icheck
                     64: announces the difficulty, the i-number, and the kind of block involved.
                     65: If a read error is encountered,
                     66: the block number of the bad block is printed and
                     67: .I icheck
                     68: considers it to contain 0.
                     69: .SH BUGS
                     70: Since
                     71: .I icheck
                     72: is inherently two-pass in nature, extraneous diagnostics
                     73: may be produced if applied to active file systems.
                     74: .PP
                     75: It believes even preposterous super-blocks and
                     76: consequently can get core images.

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