[oi-dev] Install into existing zfs pool on a GPT partition

[Udo Grabowski (IMKASF)]

On 05/09/2025 10:59, Atiq Rahman wrote:
> Hi folks,
> So I tried this tonight (rsync OI from a whole disk installation). 
> Everything
> (the parts that usually work on my system except for graphics, network, 
> etc.)
> seemed to go smoothly. BSD Loader booted the kernel without errors.
> 
> Except after rsync and reboot, my home pool won't automount. Since I put
> /export (/home is inside that) on a separate dataset, I get it. I had to
> manually import it. However, the system is supposed to initialize my home
> dir. That wouldn't happen due to the pool not auto-importing.
> 
> Any thoughts on getting the automount behavior back?
> 
> root pool:
> spool              38.0G  85.0G  34.5K  /mnt/spool
> spool/ROOT         5.99G  85.0G    24K  legacy
> spool/ROOT/OI      5.99G  85.0G  5.73G  /mnt
> spool/ROOT/OI/var   269M  85.0G   269M  /mnt/var
> spool/dump         15.5G  85.0G  15.5G  -
> spool/swap         16.5G   102G    12K  -
> 
> home / data pool:
> 
> $ sudo zfs list
> NAME             USED  AVAIL  REFER  MOUNTPOINT
> matrix          2.15M   123G    24K  none
> matrix/export    291K   123G   291K  /mnt/export
> ...

Seems home does no longer have its own zfs. Do it like this:
cd /mnt/export;mv home home_d;zfs create matrix/export/home;
# home should appear empty besides home_d
rsync -av home_d/ home/; rm -rf home_d;
zfs set canmount=on matrix/export/home
# check that /home does not exist already
zfs set mountpoint=/home matrix/export/home
# /home should appear with your user dir inside
Do the analog steps if your user dir under /home should also
be its own zfs (recommendable for more than one user).

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