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Date:      Tue, 3 May 2016 23:07:35 +0200
From:      Sebastian Wolfgarten <sebastian@wolfgarten.com>
To:        freebsd-questions@freebsd.org
Cc:        Matthias Fechner <idefix@fechner.net>
Subject:   Re: ZFS migration - New pool lost after reboot
Message-ID:  <67E0F838-8BA7-475B-91D9-24B5B5640441@wolfgarten.com>
In-Reply-To: <72d62e46-59f4-5e6f-2bf6-8ac1ba808f02@fechner.net>
References:  <0A383C91-FCBA-4B9E-A95A-157A13708125@wolfgarten.com> <72087b33-53f9-e298-1441-4988c2a5ecb3@fechner.net> <2D936447-34C1-471B-8787-8075B19F8B28@wolfgarten.com> <6E1B2BCF-3B5C-4D18-9152-FE68711B2B43@wolfgarten.com> <72d62e46-59f4-5e6f-2bf6-8ac1ba808f02@fechner.net>

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Dear all,

thanks to Matthias I already fixed most of the issues but there is one =
thing I cannot fix yet. When trying to set the mount point for the / =
file system, I am getting strange errors:

root@vm:~ # zfs set mountpoint=3Dnone newpool/ROOT
cannot open 'newpool/ROOT': dataset does not exist
root@vm:~ # zpool import -c /tmp/newpool.cache -R /mnt newpool
root@vm:~ # zfs set mountpoint=3Dnone newpool/ROOT
cannot unmount '/mnt': Device busy
root@vm:~ # zfs set mountpoint=3D/ newpool/ROOT/default
cannot unmount '/mnt': Device busy
root@vm:~ # zfs set mountpoint=3D/tmp newpool/tmp
root@vm:~ # zfs set mountpoint=3D/usr newpool/usr
root@vm:~ # zfs set mountpoint=3D/var newpool/var
root@vm:~ # zfs set mountpoint=3Dnone newpool/ROOT
cannot unmount '/mnt': Device busy
root@vm:~ # zpool export newpool
root@vm:~ # zfs set mountpoint=3Dnone newpool/ROOT
cannot open 'newpool/ROOT': dataset does not exist

So basically, when the pool is not mounted the system says =84dataset =
does not exist=93 but when I mount it and try to change the mount point =
it comes back with =84Device busy=93. Any ideas on how I am supposed to =
set the mount point for the root file system (first & last line of the =
commands listed above)?

Many thanks.

Kind regards
Sebastian

> Am 02.05.2016 um 23:45 schrieb Matthias Fechner <idefix@fechner.net>:
>=20
> Am 02.05.2016 um 22:42 schrieb Sebastian Wolfgarten:
>> root@vm:~ # zfs list
>> NAME                   USED  AVAIL  REFER  MOUNTPOINT
>> newpool                385M  5.41G    19K  /mnt/zroot
>> newpool/ROOT           385M  5.41G    19K  /mnt
>> newpool/ROOT/default   385M  5.41G   385M  /mnt
>> newpool/tmp             21K  5.41G    21K  /mnt/tmp
>> newpool/usr             76K  5.41G    19K  /mnt/usr
>> newpool/usr/home        19K  5.41G    19K  /mnt/usr/home
>> newpool/usr/ports       19K  5.41G    19K  /mnt/usr/ports
>> newpool/usr/src         19K  5.41G    19K  /mnt/usr/src
>> newpool/var            139K  5.41G    19K  /mnt/var
>> newpool/var/audit       19K  5.41G    19K  /mnt/var/audit
>> newpool/var/crash       19K  5.41G    19K  /mnt/var/crash
>> newpool/var/log         44K  5.41G    44K  /mnt/var/log
>> newpool/var/mail        19K  5.41G    19K  /mnt/var/mail
>> newpool/var/tmp         19K  5.41G    19K  /mnt/var/tmp
>> zroot                  524M  26.4G    96K  /zroot
>> zroot/ROOT             522M  26.4G    96K  none
>> zroot/ROOT/default     522M  26.4G   522M  /
>> zroot/tmp             74.5K  26.4G  74.5K  /tmp
>> zroot/usr              384K  26.4G    96K  /usr
>> zroot/usr/home          96K  26.4G    96K  /usr/home
>> zroot/usr/ports         96K  26.4G    96K  /usr/ports
>> zroot/usr/src           96K  26.4G    96K  /usr/src
>> zroot/var              580K  26.4G    96K  /var
>> zroot/var/audit         96K  26.4G    96K  /var/audit
>> zroot/var/crash         96K  26.4G    96K  /var/crash
>> zroot/var/log          103K  26.4G   103K  /var/log
>> zroot/var/mail          96K  26.4G    96K  /var/mail
>> zroot/var/tmp         92.5K  26.4G  92.5K  /var/tmp
>>=20
>> I am assuming I have to amend the zfs parameters for the mount points =
but I can=92t seem to figure out what=92s wrong. I tried things like:
>>=20
>> zfs set mountpoint=3D/usr newpool/usr
>> zfs set mountpoint=3D/tmp newpool/tmp
>> zfs set mountpoint=3D/var newpool/var
>=20
> zfs set mountpoint=3Dnone newpool/ROOT
> zfs set mountpoin=3D/ newpool/ROOT/default
> zfs set mountpoin=3D/tmp newpool/tmp
> zfs set mountpoin=3D/usr newpool/usr
> zfs set mountpoin=3D/var newpool/var
>=20
>=20
> Gru=DF
> Matthias
>=20
> --=20
>=20
> "Programming today is a race between software engineers striving to
> build bigger and better idiot-proof programs, and the universe trying =
to
> produce bigger and better idiots. So far, the universe is winning." --
> Rich Cook
> _______________________________________________
> freebsd-questions@freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-questions
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