DI 7.0 Beta4: fails to mount and find non-free firmware?

[Shyamal Prasad <shyamal@member.fsf.org>]

Hi,

While trying to install Wheezy on a Dell XPS 13 Laptop (no ethernet, USB
boot, only iwlwifi based WLAN) I ran into a problem where DI would not
find the non-free firmware on a second USB until I manually mounted the
second device on /media

Basically, it seems to be the problem reported in
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=694582

This was apparently fixed here
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=694082

I'm presuming this fix is not in b4. Could some one confirm? Should this
go in the errata for b4 until a DI build is out?

Thanks,
Shyamal