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Date: Thu, 23 Apr 2015 11:27:05 +0200
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Subject: Re: ufs snapshot help
From: Luca Ferrari <fluca1978@infinito.it>
To: jungle Boogie <jungleboogie0@gmail.com>
Cc: FreeBSD Questions <freebsd-questions@freebsd.org>
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On Thu, Apr 23, 2015 at 6:08 AM, jungle Boogie <jungleboogie0@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