FILSYS(5)                                               FILSYS(5)

          filsys, flblk, ino - format of file system volume

          #include <sys/types.h>
          #include <sys/fblk.h>
          #include <sys/filsys.h>
          #include <sys/ino.h>

          Every file system is divided into a certain number of blocks
          of 1K or 4K bytes, as determined by the predicate BITFS()
          applied to the minor device number where the file system is
          mounted.  Block 0 is unused and is available to contain a
          bootstrap program, pack label, or other information.

          Block 1 is the super block. The layout of the super block as
          defined by the include file <sys/filsys.h> is: