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Date:      Wed, 14 Jun 2017 17:39:12 -0700
From:      David Christensen <dpchrist@holgerdanske.com>
To:        freebsd-questions@freebsd.org
Subject:   Re: FreeBSD 11.0 boot pool created by installer -- how to import and mount using installer?
Message-ID:  <a1d9b8dc-d7bf-ba4a-4110-ce496beb04f3@holgerdanske.com>
In-Reply-To: <51d6f981-a763-cdd0-648f-c36f2d757334@mailman-hosting.com>
References:  <1fb7f3d1-dfb5-ab75-ab75-12dcc81423ca@holgerdanske.com> <CADyrUxNgfu-g24hcQA9Fc-YATTJA0tmkq%2BN9u3Rta%2B1-Cp%2B=hw@mail.gmail.com> <b1143059-fe17-e024-4e6d-d6dfd4e56464@holgerdanske.com> <CADyrUxNwxNHqWCDXCezCgSWwGmOdshzZZnS09cepF5FZWx1=YA@mail.gmail.com> <CADyrUxMXoDMkumHUSU3=vMSU-PwXyJs73utph8KSaUeoz32Tdw@mail.gmail.com> <CADyrUxN_QW0StUvRwKFC9KwkfErhn6YBBxeDYhWxxGz-SWVC0w@mail.gmail.com> <39a436b5-f09e-220b-954d-8ba272fa3101@holgerdanske.com> <51d6f981-a763-cdd0-648f-c36f2d757334@mailman-hosting.com>

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On 06/14/2017 05:08 PM, Jim Ohlstein wrote:
> On 06/14/2017 08:03 PM, David Christensen wrote:
>> freebsd-questions:
>>
>> I have a FreeBSD 11.0 RELEASE i386 system that I created using the
>> FreeBSD installer (FreeBSD-11.0-RELEASE-i386-memstick.img):
>>
>>          Partitioning                    Auto (ZFS)
>>
>>          ZFS Configuration
>>              Pool Type/Disks             Stripe 1 Disk
>>                  Virtual Device type     stripe
>>                  (device)                ada0
>>              Pool Name                   zroot
>>              Force 4K Sectors            YES
>>              Encrypt Disks               YES
>>              Partition Scheme            MBR (BIOS)
>>              Swap Size                   2g
>>              Mirror Swap                 NO
>>              Encrypt Swap                YES
>>              Install                     Proceed with Installation
>>
>> I broke the system by attempting to change the root pool passphrase.
>> I might be able to fix it if I can edit /boot/loader.conf.
>>
>> Booting the FreeBSD installer into multi-user mode and then going to a
>> shell:
>>
>> # zpool list
>> no pools available
>>
>> # zpool import
>>      pool: bootpool
>>        id: <redacted>
>>     state: ONLINE
>>    action: The pool can be imported using its name or numeric identifier.
>>    config:
>>
>>           bootpool    ONLINE
>>             ada0s1a   ONLINE
>>
>> # zpool import bootpool
>> cannot import 'bootpool': pool may be in use from other system
>> use '-f' to import anyway
>>
>> # zpool import -f bootpool
>> cannot mount '/bootpool': failed to created mountpoint
>>
>> Choosing Live CD produces the same end result.
>>
>> I previously obtained the same end result by booting into single-user
>> mode.
>>
>> How do I import and mount bootpool using the installer that created it?
>
> Try
>
> # zpool import -f -o mountpoint=/mnt bootpool

Thanks for the reply.


Booting FreeBSD 11.0 RELEASE i386 installer into single-user mode and 
accepting default shell:

# zpool import -f -o mountpoint=/mnt bootpool
ZFS NOTICE: KSTACK_PAGES is 2 which could result in stack overflow panic!
Please consider adding 'options KSTACK_PAGES=4' to your kernel config
ZFS NOTICE: Prefetch is disabled by default on i386 -- to enable, add 
"vfs.zfs.prefetch_disable=0" to /boot/loader.conf.
ZFS WARNING: Recommended minimum kmem_size is 512 MB; expect unstable 
behavior.  Consider tuning vm.kmem_size and vm.kmem_size_max in 
/boot/loader.conf.
ZFS filesystem version: 5
ZFS storage pool version: features support (5000)
property 'mountpoint' is not a valid pool property


David




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