To install the necessary firmware to use the Rosewill RNX-N150UBE USB wireless adapter in Ubuntu: 1. Disconnect the adapter. 2. Connect to the internet (using an ethernet cable or another wireless card) 3. In a terminal window, enter the following three commands: {{{ # wget http://svn.debian.org/wsvn/kernel/dists/trunk/firmware-nonfree/realtek/RTL8192SU/rtl8192sfw.bin # sudo mkdir /lib/firmware/RTL8192SU # sudo cp rtl8192sfw.bin /lib/firmware/RTL8192SU }}} 4. Re-connect the adapter The exclusion of this firmware is a [[https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/594248|known bug]]. ---- CategoryWireless