fsck(1M)                                                           fsck(1M)


   NAME
         fsck (generic) - check and repair file systems

   SYNOPSIS
         fsck [-F FSType] [-V] [-m] [special ...]
         fsck [-F FSType] [-V] [current_options] [-o specific_options]
         [special ...]

   DESCRIPTION
         fsck audits and interactively repairs inconsistent conditions for
         file systems.  If the file system is inconsistent the user is
         prompted for concurrence before each correction is attempted.  It
         should be noted that some corrective actions will result in some loss
         of data.  The amount and severity of data loss may be determined from
         the diagnostic output.  The default action for each correction is to
         wait for the user to respond yes or no.  If the user does not have
         write permission fsck defaults to a no action.

         The file system should be unmounted when fsck is used.  If this is
         not possible, care should be taken that the system is quiescent and
         that it is rebooted immediately afterwards if the file system is a
         critical one, for example root.

         current_options are options supported by the s5-specific module of
         fsck.  Other FSTypes do not necessarily support these options.
         specific_options indicate suboptions specified in a comma-separated
         list of suboptions and/or keyword-attribute pairs for interpretation
         by the FSType-specific module of the command.

         special represents a block or character special device (e.g.,
         /dev/dsk/c8d062).  It is preferable that a character special device
         be used.  fsck will not work on a block device if it is mounted.  If
         special is not supplied, fsck looks through /etc/vfstab and executes
         fsck for all character specials in the fsckdev field of /etc/vfstab
         for which there is a numeric entry in the fsckpass field.

         The options are:

         -F        Specify the FSType on which to operate.  The FSType should
                   either be specified here or be determinable from
                   /etc/vfstab by matching the special with an entry in the
                   table.

         -V        Echo the complete command line, but do not execute the
                   command.  The command line is generated by using the
                   options and arguments provided by the user and adding to
                   them information derived from /etc/vfstab.  This option
                   should be used to verify and validate the command line.





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   fsck(1M)                                                           fsck(1M)


         -m        Check but don't repair.  This option checks that the file
                   system is suitable for mounting.

         -o        Specify FSType-specific options.

   NOTE
         This command may not be supported for all FSTypes.

   FILES
         /etc/vfstab       list of default parameters for each file system

   SEE ALSO
         checkfsys(1M), mkfs(1M), vfstab(4).
         Manual pages for the FSType-specific modules of fsck.







































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