CrunchBang Linux

Hello all,

New to CrunchBang and new-ish to Linux.

I have a MacBook Air that I was going to try putting CrunchBang on.  I made a bootable USB stick, and can boot from that into a live session.

WiFi doesn't work, because the Air has a Broadcom chipset (specifically: BCM43224 [14e4:4353])

During boot, I can see it trying to bring up wifi and failing with messages like:

    brcm/bcm43xx-0.fw not found
    brcmsmac: Failed to find firmware usually in /lib/firmware/brcm

Sure enough, there is no /lib/firmware/brcm on the live image.  I assume because it's proprietary.

I've been googling for solutions for hours, but all say to connect to the internet by other means (such as ethernet) and install packages from there.

Right at the moment, I have no other means of getting this machine on the internet.  It has no ethernet port, and I don't have a USB-to-Ethernet adapter handy.

What I _can_ do is copy something to a USB drive and move that over to the Air.  What can I do to bring up the wifi connection on this live session?

Thanks in advance for any clues.