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Date:      Sun, 05 May 2013 22:20:43 +0200
From:      keramida@freebsd.org (Giorgos Keramidas)
To:        David Demelier <demelier.david@gmail.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: ZFS on MBR does not boot at all
Message-ID:  <67um8rwqrdrxes.fsf@saturn.laptop>
In-Reply-To: <CAO+PfDdnssETKQHVBAPv60waaXhHNZj7r-f53VNh+h99=3LOPQ@mail.gmail.com> (David Demelier's message of "Mon, 29 Apr 2013 13:29:18 +0200")
References:  <CAO+PfDeyQ16aXEV1P6ACAE7=sbn+m_-j2c5fV1YmqV8ds6cejw@mail.gmail.com> <CAO+PfDdnssETKQHVBAPv60waaXhHNZj7r-f53VNh+h99=3LOPQ@mail.gmail.com>

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On Mon, 29 Apr 2013 13:29:18 +0200, David Demelier <demelier.david@gmail.com> wrote:
> 2013/4/18 David Demelier <demelier.david@gmail.com>:
>> Hello,
>> I would like to use ZFS over MBR for multiboot purposes. I've followed
>> that guide https://wiki.freebsd.org/RootOnZFS/ZFSBootPartition but it
>> does not boot at all. The loader does not show up after choosing
>> FreeBSD in the boot0 loader.
>>
>> The _ prompt appears but nothing starts. I've found many people over
>> the web having the same problem but unfortunately no one found a
>> solution.
>>
>> I think the offensive commands are ones with dd and zfsboot.
>> Regards,
>
> So someone told me on IRC that the main problem was that I've put my
> partition swap as first partition in the FreeBSD slice and zfsboot
> *requires* that the zfs partition is the first.
>
> Can someone with right access to the wiki page may add a notice about
> this issue on https://wiki.freebsd.org/RootOnZFS/ZFSBootPartition
> please?

Hi David,

Thanks for following up with what the real problem was.  I updated the
Wiki to include this:

    Note that partition order is important. It seems that zfsboot
    requires the freebsd-zfs partition to be the first, so make sure you
    add if first, before your swap partition.

Cheers,
Giorgos


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