i'm new with ubuntu. I decided today to install the version 13.04. When i finished installing it, the system didn't recognized my broadcom BCM43227 wifi network card. So i searched online, and i known that i had to install bcmwl-kernel-source from my ubuntu cd. The problem is that i don't have a cd, but a USB drive with ubuntu (unetinboot). So maybe the only solution is to mount the iso of my usb into media/cdrom (upgrade software center says that the bcmwl-kernel-source must be in media/cdrom).
I also found this but i don't know how to install it http://www.broadcom.com/docs/linux_sta/hybrid-portsrc_x86_64-v5_100_82_112.tar.gz
I hope you can help me!