ufs snapshot help

[Luca Ferrari]

On Thu, Apr 23, 2015 at 6:08 AM, jungle Boogie <jungleboogie0 at gmail.com> wrote:
> While zfs is the better choice for virtually everything, I can't quite
> support it on my old hardware--plus I want to learn the basics.
>

That is: ZFS is not for good for all!

> Following this simple page:
> https://www.freebsd.org/doc/handbook/snapshots.html
>
> # mount -u -o snapshot /var/snapshot/snap /var
> mount: /var/snapshot/snap: Invalid argument

I suspect you are trying to snapshot a filesystem that does not exist.
Do you have a separate filesystem for /var?

Luca