How do we clear a bogus zpool?

[Nicolas Rachinsky]

* Sean Bruno <sean_bruno at yahoo.com> [2013-08-20 09:24 -0700]:
> I've managed to create a situation where I have a completely bogus zpool
> showing up on my system.  There seems to be no way to wipe this out?
> 
> # zpool import           
>    pool: zroot
>      id: 854190767471294680
>   state: UNAVAIL
> 
> # zpool destroy -f zroot
> cannot open 'zroot': no such pool
> # zpool clear -F zroot
> cannot open 'zroot': no such pool

What about zpool export zroot?

Nicolas
-- 
http://www.rachinsky.de/nicolas