Undo GELI

[ASV]

Unfortunately for you the geli provider must be created prior the
filesystem which is going to be encrypted within.
If you forgot about that you have to move the data somewhere else and
re-create the fs within a geli provider.
As I've played quite some with that in the past I can tell you that
I've successfully used rsync, dump and tar for the data transfer. Which
one to use is up to you but dump is certainly the slowest of them all.

Good luck!

On Tue, 2017-04-25 at 13:01 -0400, James B. Byrne via freebsd-questions 
wrote:
> In my frustration with getting FreeBSD installed on it I forgot where
> this device was going to be placed and selected encryption for the
> entire ZFS install.  I now realise that simply is not going to work. 
> Having already extensively configured the unit I am wondering if
> there
> is some way to undo this or if I am faced with a complete reinstall.
> 
> Sigh. . .
> 
>