[SOLVED] ifconfig: SIOCGIFFLAGS failed: No such device wlan0

Jigsaw · 07-07-2016, 11:48 PM

I have problems that my wlan0 does not work I have installed a firmware driver athr9k but pas me run wlan0 message "ifconfig: SIOCGIFFLAGS failed: No such device".

Code:

Networking  --->
Wireless  --->
    <M> Improved wireless configuration API
    <M> Generic IEEE 802.11 Networking Stack (mac80211)

Device Drivers  --->[*] Network device support  --->
        Wireless LAN  --->
          Atheros Wireless Cards ---->
            <M>   Atheros 802.11n wireless cards support

Code:

git clone git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
cd linux-firmware
make install

root [ ~ ]# ifconfig wlan0 up
ifconfig: SIOCGIFFLAGS failed: No such device

root [ ~ ]# lspci | grep Wireless
07:00.0 Network controller: Qualcomm Atheros AR9485 Wireless Network Adapter (rev 01)

please help me sir..

tnut · 07-08-2016, 06:57 AM

As a start you could check for any error message at boot time and see if your firmware was found and successfully loaded by the kernel.

In root:

Code:

dmesg¦more

spiky0011 · 07-08-2016, 02:32 PM

hi
you could check that it,s not named something else. "wlp3s0" or similar.

Ifconfig might help

Jigsaw · 07-11-2016, 05:43 PM

I compile the kernel from the beginning and now it can.