zones / lofs mount order

Hi,
I have a zone with 2 file systems (zfs), one is mounted at / and second at /var - it's default in zone installation.
I would like to share file system from GZ with my NGZ. I have a /var/spool/mail added to zone config as lofs type:
add fs
set dir="/var/spool/mail"
set special="/var/spool/mail"
set type="lofs"
end

Now I cannot boot my NGZ, because mount order is:
- root file system (/)
- all my lofs
- local file systems (/var).
NGZ cannot mount /var file system because /var/spool/mail is mounted, so boot fails.


Does anyone know how can I change order of mounting. I want to have impact on order of lofs mounting.