Note that this option does not guarantee that umount command does not hang.
It's strongly recommended to use absolute paths without symlinks to avoid
-unwanted readlink and stat syscalls on unreachable NFS in umount.
+unwanted readlink and stat system calls on unreachable NFS in umount.
.TP
.BR \-i , " \-\-internal\-only"
Do not call the \fB/sbin/umount.\fIfilesystem\fR helper even if it exists.