flashboot - May 2008 - GENERIC-RD kernel config change for acpi

Hey, I was working on building a kernel to boot off a USB flash drive
and using the GENERIC-RD config from the snapshot it failed to build
with an error saying acpi''s can not be on mainbus''s, looking
over the
man page I found that between 4.2 and 4.3 the i386 acpi device was
changed from "at mainbus?" to "at bios?". It''s a
quick one line fix in
the config but just in case some one has been trying to figure out why
their kernel won''t build I thought I would point it out
(didn''t see any
mention of this in the archives).