Where is loader.conf.gz?

[hiren panchasara]

I am trying to netboot minnowboard max with loader.efi and then
nfsmount the root fs from my FreeBSD-Current zfs laptop.

It gets stuck right at "Loading /boot/defaults/loader.conf"

Looking at tcpdump (on interface serving nfsd on laptop), it tries to
find loader.conf.gz and fails.

I've failed to find loader.conf.gz anywhere on box or in the source code.
Where does it come from and who is looking for it?

cheers,
Hiren