raspberry pi 3 B+ - working but rc.conf problem

[Wojciech Puchar]

> my /etc/rc.conf ifconfig use because in
> /boot/loader.conf I have:
>
> kern.cam.boot_delay=10000
> vfs.mountroot.timeout=10
> vfs.root_mount_always_wait=1
>
> I have / on a USB SSD (that is on a powered
> hub that is in turn plugged into a RPi3 port).
>
> May be some combination of those guarantees to
> wait long enough early on that the ifconfig_ue0
> that I use always sees everything it needs as
> ready.
>
definitely - you mount / from USB so it already scanned USB when starting