-nor in the free list.
-.PP
-The
-.B \-s
-option causes
-.I icheck
-to ignore the actual free list and reconstruct a new one
-by rewriting the super-block of the file system.
-The file system should be dismounted while this is done;
-if this is not possible (for example if
-the root file system has to be salvaged)
-care should be taken that the system is quiescent and that
-it is rebooted immediately afterwards so that the old, bad in-core
-copy of the super-block will not continue to be used.
-Notice also that
-the words in the super-block
-which indicate the size of the free list and of the
-i-list are believed.
-If the super-block has been curdled
-these words will have to be patched.
-The
-.B \-s
-option
-causes the normal output reports to be suppressed.