/root on a separate dataset breaks FreeBSD-base installation

[Grzegorz Junka]

On 11/04/2020 15:12, Emmanuel Vadot wrote:
> On Sat, 11 Apr 2020 12:39:30 +0000
> Grzegorz Junka <list1 at gjunka.com> wrote:
>
>> I am following https://wiki.freebsd.org/PkgBase
>>
>> This:
>>
>> pkg install -g 'FreeBSD-*'
>>
>> fails with this:
>>
>> [2/800] Extracting FreeBSD-runtime-12.1_3:   4%
>> pkg: Fail to create hardlink:
>> /root/.pkgtemp..cshrc.v5sxGCRu3GlP:Cross-device link
>> [2/800] Extracting FreeBSD-runtime-12.1_3: 100%
>>
>> /root is in a different ZFS dataset. It works fine if it's not. Why pkg
>> is using /root/.pkgtemp instead of /tmp or /var/tmp? It doesn't matter
>> from where I run the command, looks like the path is hardcoded.
>   pkg(8) first extract the file to the target directory but with a
> temporary name, if it was using /tmp/ or /var/tmp/ it would have to
> potentially move the file from one partition to another while right now
> it can just rename it after having dealt with the old copy.
>
>   Can you zfs list on this box please ?

root at moon:~ # zfs list
NAME                 USED  AVAIL  REFER  MOUNTPOINT
tank6               3.35G  25.9G    88K  none
tank6/ROOT          1.89G  25.9G    88K  none
tank6/ROOT/default  1.89G  25.9G  1.89G  /
tank6/e             4.50M  25.9G    88K  none
tank6/e/tmp           96K  25.9G    96K  /tmp
tank6/e/var_db_pkg  4.32M  25.9G  4.32M  /var/db/pkg
tank6/es            26.4M  25.9G    88K  none
tank6/es/root         88K  25.9G    88K  /root
tank6/es/usr_home    136K  25.9G   136K  /usr/home
tank6/es/usr_local  26.1M  25.9G  26.1M  /usr/local
tank6/j               88K  25.9G    88K  /j
tank6/m              176K  25.9G    88K  none
tank6/m/var_mail      88K  25.9G    88K  /var/mail
tank6/t               88K  25.9G    88K  none
tank6/var           1.38G  25.9G  1.38G  /var
tank6/var/empty       88K  25.9G    88K  /var/empty
tank6/var/tmp         88K  25.9G    88K  /var/tmp