fsck(1M)         SYSTEM ADMINISTRATION COMMANDS          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  condi-
     tions  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  speci-
     fied   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/rdsk/c1d0s8).  It is preferable that a character
     special device be used.  fsck will not work on a block  dev-
     ice  if  it  is  mounted.   If special is not supplied, fsck
     looks through /etc/vfstab and executes fsck for all  charac-
     ter  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 spe-
               cial 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.



                                                                1

fsck(1M)         SYSTEM ADMINISTRATION COMMANDS          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.









































                                                                2