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Annotation of researchv10dc/man/adm/man8/chuck.8, revision 1.1

1.1     ! root        1: .TH CHUCK 8
        !             2: .CT 1 sa_nonmortals
        !             3: .SH NAME
        !             4: chuck \- a file system checking program
        !             5: .SH SYNOPSIS
        !             6: .B /etc/chuck
        !             7: [
        !             8: .I option ...
        !             9: ]
        !            10: .I device
        !            11: .PP
        !            12: .B /etc/chuck
        !            13: .B -M
        !            14: .I blocks
        !            15: .I device
        !            16: .PP
        !            17: .B /etc/upchuck
        !            18: [
        !            19: .B -w
        !            20: ] [
        !            21: .B -p
        !            22: .I program
        !            23: ]
        !            24: .SH DESCRIPTION
        !            25: .PP
        !            26: .I Chuck
        !            27: checks and optionally repairs the file system on the named
        !            28: .I device.
        !            29: It is normally invoked by
        !            30: .I upchuck
        !            31: by
        !            32: .IR rc (8)
        !            33: during reboots.
        !            34: The
        !            35: .B -w
        !            36: flag to
        !            37: .I upchuck
        !            38: is passed on to
        !            39: .I program.
        !            40: If
        !            41: .I program
        !            42: is not present, the default is
        !            43: .FR /etc/chuck .
        !            44: (Try, as super-user,
        !            45: .B "/etc/upchuck -p /bin/echo
        !            46: to see the normal arguments to
        !            47: .IR chuck .)
        !            48: If
        !            49: .I upchuck
        !            50: can read the raw version of
        !            51: .I device,
        !            52: it will, except for the root file system.
        !            53: .PP
        !            54: The options are
        !            55: .TP
        !            56: .B -w
        !            57: Try to do standard repairs.
        !            58: .TP
        !            59: .BI -b " blocksize
        !            60: Specify file system block size; default is 4096.
        !            61: .TP
        !            62: .B -i
        !            63: Interactive.
        !            64: Ask approval for each change.
        !            65: .TP
        !            66: .BI -I " inode ...
        !            67: .br
        !            68: .ns
        !            69: .TP
        !            70: .BI -B " block ...
        !            71: Report on inodes or blocks specified by number.
        !            72: .TP
        !            73: .B -v
        !            74: Verbose.
        !            75: Give more commentary.
        !            76: .PP
        !            77: .I Chuck
        !            78: can also make a new file system:
        !            79: .B "chuck -M"
        !            80: .I size device
        !            81: makes a bitmapped file system (only)
        !            82: of
        !            83: .I size
        !            84: 4096-byte blocks
        !            85: on
        !            86: .IR device .
        !            87: It asks approval before writing.
        !            88: .SH FILES
        !            89: .F /etc/fstab
        !            90: .SH "SEE ALSO"
        !            91: .IR fstab (5), 
        !            92: .IR filsys (5), 
        !            93: .IR fsck (8),
        !            94: .IR reboot (8)
        !            95: .SH BUGS
        !            96: .I Chuck
        !            97: does not replace real expertise.
        !            98: It will not automatically repair a file system with duplicate blocks.
        !            99: In complicated situations it may have to be run
        !           100: several times to get complete consistency.
        !           101: .br
        !           102: It will not recover from I/O errors in reading the inodes,
        !           103: and does not yet extend
        !           104: .F lost+found
        !           105: when necessary.
        !           106: .br
        !           107: It uses memory freely (about 12 bytes per file system block
        !           108: and 84 bytes per inode).
        !           109: .br
        !           110: .I Chuck
        !           111: is still experimental,
        !           112: and acts the part.
        !           113: Error messages are usually inscrutable.
        !           114: .br
        !           115: It believes even preposterous super-blocks and
        !           116: consequently can get core images.

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