While installing FreeBSD 10.2 onto a fresh hard drive, I attempted to use the "manual" method of partitioning. I first created the usual partitions, specifically, /, swap, /var, /tmp, /usr, and /home. I then wanted a partition just for /var/ftp/private and tried to create that also, however the install-time ``manual'' partitioning tool just ignored the final (third) pathname component that I had entered and instead showed that it would only be creating /var/ftp as the last partition.
This was/is annoying. I would have preferred that the partitioning tool would have just done what I had requested, or at the very least, that it would have put up some sort of an error dialog box which would explain to me why it would not or could not do so.
Obviously, the partitioning tool _does_ know how to create directories, e.g. such as /var, /tmp, and so on, and it will normally just do so. Thus, I do not have any idea why it refused to create /var/ftp/private and make that into a separate partition like the others. It's a mystery. (I was using GPT partitioning on the drive, by the way, but I doubt that that makes any difference.)