- Add a "contrib" component to /etc/apt/sources.list, for example:
# Debian Squeeze/6.0 deb http://ftp.us.debian.org/debian squeeze main contrib non-free
- Update the list of available packages and install the wireless-tools package:
aptitude update && aptitude install wireless-tools
- Install the appropriate firmware installer package: For 802.11b/g devices with a BCM4306 revision 3, BCM4311 or BCM4318 chipset, install firmware-b43-installer:
aptitude install firmware-b43-installer
For 802.11b/g devices with a BCM4312 LP-PHY chipset (PCI ID 14E4:4315), install firmware-b43-lpphy-installer:aptitude install firmware-b43-lpphy-installer
For 802.11b-only devices (BCM4301) or 802.11b/g devices with the BCM4306 revision 2 chipset, install firmware-b43legacy-installer:aptitude install firmware-b43legacy-installer
A PCI ID check will be performed to prevent incorrect firmware installation. When satisfied, the relevant Broadcom proprietary driver will be acquired, the firmware within will be extracted and installed. - If not already performed, connect the device to your system. The necessary kernel module is automatically loaded for supported devices.
- Verify your device has an available interface:
iwconfig
- Configure your wireless interface as appropriate.
Troubleshooting
- Examine the kernel ring buffer (dmesg(1)) to verify the required firmware files are being loaded by the driver. Lack of firmware is the usual reason for the "SIOCSIFFLAGS: No such file or directory" error message.
- Run dpkg-reconfigure firmware-b43-installer, dpkg-reconfigure firmware-b43legacy-installer or dpkg-reconfigure firmware-b43-lpphy-installer (as relevant) to fetch and extract firmware again.
- If necessary, firmware can be manually acquired and extracted using the b43-fwcutter utility, see http://wireless.kernel.org/en/users/Drivers/b43#Device_firmware_installation. The b43-fwcutter package will need to be installed.
- Prior to Linux 3.0, DMA errors may occur on some systems with LP-PHY devices (589867).
- To workaround:
modprobe -r b43 echo options b43 pio=1 qos=0 >> /etc/modprobe.d/local.conf modprobe b43
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