This one time, at band camp, Jukka Salmi said:

> It's /var/etc/cfdevice.

thank you! thank you! thank you! thank you! thank you!

i know that the boot device will almost always be /dev/ad0, but with
1.1b13:

> - all disks known to the kernel are now probed for the config file,
>   which should make USB and SCSI disks work (patch by Dinesh Nair)

this is just what i need.

thanks,
jj