ZFS snapshot - rollback problem

[Graham Perrin]

On 10/09/2020 17:54, Christoph Brinkhaus wrote:
> … May be you should first delete the snapshot of zroot/swapdisk0 at 200909.
> If that does not work you might have to boot from a different medium
> as the USB installer stick and handle the pool when it is inactive. …
Boot from a different medium sounds, to me, like a good idea. If you 
have not already done so.