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Date:      Mon, 10 Nov 2014 23:37:21 -0800
From:      Xin Li <delphij@delphij.net>
To:        Zeus Panchenko <zeus@ibs.dn.ua>, freebsd-fs@freebsd.org
Subject:   Re: unsupported feature: com.delfix and can't find pool by guid after old STABLE10.0-to-RELENG10.0 upgrade
Message-ID:  <5461BCB1.5030703@delphij.net>
In-Reply-To: <20141111080903.94302@smtp.new-ukraine.org>
References:  <20141111080903.94302@smtp.new-ukraine.org>

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Hi,

On 11/10/14 22:09, Zeus Panchenko wrote:
> greetings,
> 
> please help me to understand what am I missing ...
> 
> I "successfully" (built/installed world/kernel without errors)
> upgraded long time, fine worked root-on-zfs box from 10.0 STABLE
> (last built in july) to RELENG 10.0, p11

This is a downgrade.  We do not support downgrades -- it may work when
you are lucky but that's not guaranteed.

> but after reboot, loader complained on unsupported feature: 
> com.delfix:hole_birth and com.delfix:embedded_data
[...]
> system was working in production long time before that
> 
> So, is there any way to fix that and what is it at all? Is it
> because of switching from stable to releng?  I'm giving up in
> attempts to revive it ...

Yes!  For now you can use a FreeBSD 10.1-RC4 disc to boot and rescue
your system.

If you would not mind to wait for a few more days -- we will have
10.1-RELEASE really soon.

Cheers,
- -- 
Xin LI <delphij@delphij.net>    https://www.delphij.net/
FreeBSD - The Power to Serve!           Live free or die
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