Provided by: libpam-mount-bin_2.19-1_amd64 bug

Name

       umount.crypt - unmount a dm-crypt encrypted volume

Syntax

       umount.crypt [-n] directory

Options

       -f     This option is ignored (originally is "force unmount for NFS").

       -n     Do not update /etc/mtab.

       -r     Try   mounting  read-only  if  unmounting  fails.  This  option  is  currently  not
              implemented and is ignored.

Description

       umount.crypt will unmount directory and disassociates the underlying  crypto  device,  and
       loop device if such was used.