how to destroy zfs parent filesystem without destroying children - corrupted file causing kernel panick

[Greg Bonett]

> It's probably a long shot, but you may try removing bad file using
> illumos (ex opensolaris) system (or liveCD). In the past it used to be
> a little bit more robust than FreeBSD when it came to dealing with
> filesystem corruption. In one case I had illumos printed out a message
> about corrupt pool and remained up and running while FreeBSD would
> just crash when I tried mounting the pool.
>
> That's a good idea - but the zpool is made of geli devices.  Illumos can't
attached FreeBSD geli devices can it?