Trying to install Arch Linux on a partition of my hard drive, my only option is to connect to Internet with WiFi.
Ubuntu (on another partition) shows with
lspci that WiFi chip-set is Broadcom BCM4311 and
lspci -k shows Ubuntu is using ssb module and b43-pci-bridge driver which works fine.
Arch Linux bootable USB with
lspci -k shows that it is using the same module and driver but
ifconfig shows no wireless interface. Here it is mentioned that BCM4311 works with b43-firmware-classic from AUR.
Now, how can I install b43-firmware-classic to use my wireless chip-set, before even installing Arch Linux itself.
git clone on Ubuntu and downloaded Arch Linux b43-firmware-classic from AUR on my Ubuntu root partition. However I'm not sure where to go from there.