/mnt/etc/firmware is only mentioned in plus44.html. Mention it in loadfirmware(9).
It was concluded that the FAQ is not a proper place to talk about this directory. Index: ./share/man/man9/loadfirmware.9 =================================================================== RCS file: /cvs/src/share/man/man9/loadfirmware.9,v retrieving revision 1.4 diff -u -p -r1.4 loadfirmware.9 --- ./share/man/man9/loadfirmware.9 4 Jun 2013 19:27:08 -0000 1.4 +++ ./share/man/man9/loadfirmware.9 20 Dec 2016 21:37:42 -0000 @@ -32,6 +32,10 @@ function loads a firmware from the file .Ar filename in the directory .Pa /etc/firmware . +In addition to that, if the kernel is a ramdisk kernel, the extra +directory +.Pa /mnt/etc/firmware +will also be used for the lookup. Memory for the firmware is allocated using .Xr malloc 9 with type -- Michal Mazurek