From owner-freebsd-fs@FreeBSD.ORG  Mon Oct 21 00:21:11 2013
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Date: Mon, 21 Oct 2013 02:21:06 +0200
From: Freek Dijkstra <public@macfreek.nl>
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To: freebsd-fs@freebsd.org
Subject: Re: ZFS: unsupported ZFS version 5000 (should be 28)
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On 21-10-2013 00:03, Freek Dijkstra wrote:

>    ZFS: unsupported ZFS version 5000 (should be 28)
>    gptzfsboot: No ZFS pools located, can't boot

[...]

>   # gpart create -s gpt ada0
>   # gpart add -b 34 -s 94 -t freebsd-boot ada0
>   # gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 ada0

I tried a full install again, and it seems that 94 blocks was too small
for freebsd-boot. I just tried again, and things seem to work now.

I am curious if this indeed was the cause.
Is there a way to determine the required size of a bootloader?

If this was indeed the cause (I need some sleep, so am not ruling
anything out :) ), I guess it is useful to add a warning message to gpart.

Regards,
Freek