Unknown option: "-8" Unix manual page for vsdbutil. (host=minya system=Darwin)
VSDBUTIL(8)               BSD System Manager's Manual              VSDBUTIL(8)

NAME
     vsdbutil -- manipulates the volume status DB.

SYNOPSIS
     vsdbutil [-a path]

     vsdbutil [-c path] [-d path] [-i]

     vsdbutil [-h]

DESCRIPTION
     vsdbutil manipulates the volume status DB.  The following options are
     available:

     -a       adopts (activates) on-disk ownership on the specified path

     -c       checks the status of the ownership usage on the specified path

     -d       disowns (deactivates) the on-disk ownership on the specified
              path

     -i       initializes the ownership database to include all mounted HFS+
              and APFS volumes

     -h       prints out a simple help message

     The vsdbutil command is deprecated; using a volume UUID in fstab(5) is
     preferred.

FILES
     /var/db/volinfo.database                      Database of volumes managed
                                                   via vsdbutil.

SEE ALSO
     diskutil(8), mount(8), fstab(5)

Darwin                         December 19, 2001                        Darwin