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From: Martin Simmons <martin@lispworks.com>
To: Jonathan Anderson <jonathan.anderson@mun.ca>
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 (message from Jonathan Anderson on Sun, 10 Nov 2019 22:16:26 -0330)
Subject: Re: Broken ZFS boot on upgrade
References: <CAP8WKbJWSHzhFCKijRVxydKEwgD_4NX2gmA-QVEVZPuotFCGvQ@mail.gmail.com>
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>>>>> On Sun, 10 Nov 2019 22:16:26 -0330, Jonathan Anderson said:
> 
>                                                   but when I run `lszfs
> zroot/ROOT/default` from the loader prompt it gives me an empty result (so,
> e.g., no /boot).

FWIW, I think that is normal unless you have created a child dataset of
zroot/ROOT/default.

You can try the ls command, e.g.

ls
ls /boot
ls /boot/kernel
ls /boot/kernel/kernel

__Martin