There once was a day that I compiled my own kernels and configured all modules manually. It's been quite a while since I've done anything like that, but I remembered some of it.
Today I installed my WiFi drivers. The HP Elitebook 8570w I own has a Centrino Advanced-N 6205 on board that is actually supported by Fedora 17.
$ lspci 00:00.0 Host bridge: Intel Corporation Ivy Bridge DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Ivy Bridge PCI Express Root Port (rev 09) 00:14.0 USB Controller: Intel Corporation Panther Point USB xHCI Host Controller (rev 04) 00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04) 00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04) 00:1a.0 USB Controller: Intel Corporation Panther Point USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1 (rev c4) 00:1c.1 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 2 (rev c4) 00:1c.2 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 3 (rev c4) 00:1c.3 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 4 (rev c4) 00:1d.0 USB Controller: Intel Corporation Panther Point USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation Panther Point 6 port SATA AHCI Controller (rev 04) 00:1f.3 SMBus: Intel Corporation Panther Point SMBus Controller (rev 04) 01:00.0 VGA compatible controller: nVidia Corporation Device 0ffc (rev a1) 01:00.1 Audio device: nVidia Corporation Device 0e1b (rev a1) 24:00.0 FireWire (IEEE 1394): JMicron Technology Corp. IEEE 1394 Host Controller (rev 30) 24:00.1 System peripheral: JMicron Technology Corp. SD/MMC Host Controller (rev 30) 24:00.2 SD Host controller: JMicron Technology Corp. Standard SD Host Controller (rev 30) 25:00.0 Network controller: Intel Corporation Centrino Advanced-N 6205 (rev 34) |
The device at the very bottom is the WiFi device we're looking for. But iwconfig shows it's not available to the system somehow:
$ iwconfig thuisf no wireless extensions. vmnet8 no wireless extensions. thuis no wireless extensions. eth0 no wireless extensions. lo no wireless extensions. virbr0-nic no wireless extensions. virbr0 no wireless extensions. noc no wireless extensions. vmnet1 no wireless extensions. |
The WiFi drivers in Linux nowadays seem to be named iwl*, which makes them easier to look for in the dmesg log:
$ dmesg|grep iwl [ 43.085807] iwlwifi 0000:25:00.0: pci_resource_len = 0x00002000 [ 43.086120] iwlwifi 0000:25:00.0: pci_resource_base = ffffc90013ab4000 [ 43.086435] iwlwifi 0000:25:00.0: HW Revision ID = 0x34 [ 43.086832] iwlwifi 0000:25:00.0: irq 48 for MSI/MSI-X [ 43.108045] iwlwifi 0000:25:00.0: request for firmware file 'iwlwifi-6000g2a-5.ucode' failed. [ 43.108560] iwlwifi 0000:25:00.0: no suitable firmware found! |
And there's our reason. This firmware uses microcode. Without the microcode file installed, the driver cannot initialize. So we install this microcode:
yum install iwl6000g2a-firmware.noarch |
Let's see what we got. First we remove the iwlwifi driver and reinsert it. Then we got ourselves a working wlan0:
rmmod iwlwifi ; modprobe iwlwifi ; iwconfig vmnet8 no wireless extensions. eth0 no wireless extensions. lo no wireless extensions. virbr0-nic no wireless extensions. virbr0 no wireless extensions. noc no wireless extensions. wlan0 IEEE 802.11abgn ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=off Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:off vmnet1 no wireless extensions. |
This driver is reponsible for the bluetooth device as well. You may need to press the wireless switch to enable bluetooth.
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