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Date:      Thu, 25 May 2017 12:00:49 +0200
From:      Fabian Keil <freebsd-listen@fabiankeil.de>
To:        mtiger <mtiger090@gmail.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: ZFS root on single SSD?
Message-ID:  <20170525120049.3633da28@fabiankeil.de>
In-Reply-To: <9f2aef3b-5c7f-858a-2769-48cb150825a0@gmail.com>
References:  <CAEsW2o88qA_YGxHC%2B5nWsi90yJfXKkCSV7tACstK6_hLNgu4HQ@mail.gmail.com> <CALfReyfjn%2BRBUMeM7sjPDsv_jWE2taFkBv1wgsK00YALJv=PYg@mail.gmail.com> <CAEsW2o8H6e_CUErgrcVuaVpszWcru%2BDfJbHfCUnQTH%2BtwXUSZg@mail.gmail.com> <CALfReyfOpH4KDp3isSpfT72AD9Maez_VcPEJodvYrHYLfuhp-w@mail.gmail.com> <9f2aef3b-5c7f-858a-2769-48cb150825a0@gmail.com>

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mtiger <mtiger090@gmail.com> wrote:

> I have a similar situation. I have a nice ssd i am using through a usb=20
> port. I can't install this ssd internally because there are no free sata=
=20
> ports nor mounting slots. I would like to use ZFS on it, but I can't get=
=20
> it to boot using the  ZFS options from the installer. I'm trying to use=20
> version 11 memstick image of the FreeBSD installer.
>=20
> Now if I leave the install media (on a usb flash drive) connected I can=20
> boot the drive setup as ZFS no problem. If i remove the install media=20
> and try to boot I get an error telling me it can't mount root. Power the=
=20
> system on and off and the problem is still the same.
>=20
> If I do the same installation and select UFS everything works fine every=
=20
> time no matter what usb devices I'm using or have connected.
>=20
> I've tried this on several machines but always with the same result.=20
> I've also had the same result using usb external hard drives.
>=20
> I've been through the handbook time and time again. I also get the same=20
> problem if I install TrueOS which is using 12-Current. As long as the=20
> install media is still connected it will boot the other drive setup for=20
> ZFS. If I disconnect the install flash drive it will not boot.

The behaviour you describe could be the result of this bug:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D208882

Fabian

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