LinuxQuestions.org - [SOLVED] ifconfig: SIOCGIFFLAGS failed: No such device wlan0

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ifconfig: SIOCGIFFLAGS failed: No such device wlan0

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..

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

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

Ifconfig might help

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