Install Wireless Wifi drivers on Sony Vaio CW on Linux Ubuntu

Out of the box Ubuntu 9.10 wireless/wifi did not work on my Sony Vaio CW Series (VPCCW26FG), The following error message is shown on start up and on dmesg command.

Could not read microcode: -2

The solution was to install backports modules.

Installing Wireless Drivers on Ubuntu

In order to make wireless (WiFi) work on the new Sony Vaio CW series, you have to run the following commands on Ubuntu 9.10 Karmic.

sudo apt-get clean
sudo apt-get update
sudo apt-get install linux-backports-modules-karmic

Restart your computer and wireless should work. :)

lspci Output of Sony Vaio CW

00:00.0 Host bridge: Intel Corporation Arrandale DRAM Controller (rev 02)
00:01.0 PCI bridge: Intel Corporation Arrandale PCI Express x16 Root Port (rev 02)
00:1a.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05)
00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 05)
00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 05)
00:1c.2 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 3 (rev 05)
00:1c.5 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 6 (rev 05)
00:1d.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a5)
00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 6 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 05)
00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem (rev 05)
01:00.0 VGA compatible controller: nVidia Corporation Device 0a2b (rev a2)
01:00.1 Audio device: nVidia Corporation Device 0be2 (rev a1)
02:00.0 Network controller: Intel Corporation Device 422c (rev 35)
03:00.0 SD Host controller: Ricoh Co Ltd Device e822
03:00.1 System peripheral: Ricoh Co Ltd Device e230
03:00.3 FireWire (IEEE 1394): Ricoh Co Ltd Device e832
03:00.4 SD Host controller: Ricoh Co Ltd Device e822
04:00.0 Ethernet controller: Marvell Technology Group Ltd. Device 4380 (rev 10)
3f:00.0 Host bridge: Intel Corporation QuickPath Architecture Generic Non-core Registers (rev 02)
3f:00.1 Host bridge: Intel Corporation QuickPath Architecture System Address Decoder (rev 02)
3f:02.0 Host bridge: Intel Corporation QPI Link 0 (rev 02)
3f:02.1 Host bridge: Intel Corporation QPI Physical 0 (rev 02)
3f:02.2 Host bridge: Intel Corporation Device 2d12 (rev 02)
3f:02.3 Host bridge: Intel Corporation Device 2d13 (rev 02)

The ethernet adapter is 02:00.0 Network controller: Intel Corporation Device 422c (rev 35). 01 Apr, 2010

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