Goetz - Geli on serial

Hi there,

first of I wanted to thank you for the awesome show and Allan for the
changes to zfsboot, that allows to boot from an encrypted disk without
using grub.

Now to my question:
My server is running FreeBSD 10.3 / TrueOS with enrypted disk using geli
and grub as bootloader.  This works fine, and I'm able to enter the geli
password using the serial console.

My new test setup, uses FreeBSD 11.0 and also encrypted disk using geli,
but with zfsboot instead of grub.  This also works fine on VGA, but as
/boot.config is on the encrypted disk, it's not read before the system
prompts for the geli password.

Do you have any idea how I tell zfsboot to use the serial console, or
better yet dual console.

Thanks and keep up the great work,
    Goetz.