ifconfig wlan0 up failed
 

hiiii can anyone plz help me out.

whenever i type ifconfig wlano up in xteminal all i am getting is "no such device"

i dont know why this is happening...
i am using n900

i am very tensed about this plz smbdy help me out...


through wifi switcher i am getting ifconfig wlan0 up failed.
i dont know the reason behind this.


plz help

Re: ifconfig wlan0 up failed
 

wlano? 0 is zero

Re: ifconfig wlan0 up failed
 

also it should be /sbin/ifconfig IMO if you haven't set expressly the PATH in the /.bashrc file...

Re: ifconfig wlan0 up failed
 

@ codeus ...yeah i know it is 0...by mistake i wrote wlano insted of wlan0

Re: ifconfig wlan0 up failed
 

Could you post the exact output of doing, as root:

# ifconfig wlan0 up

also, run "lsmod" (as user or as root, doesn't matter), and post the output.

Re: ifconfig wlan0 up failed
 

sir, here is the output.



BusyBox v1.10.2 (Debian 3:1.10.2.legal-1osso30+0m5) built-in shell (ash)
Enter 'help' for a list of built-in commands.

~ $ sudo gainroot
Root shell enabled


BusyBox v1.10.2 (Debian 3:1.10.2.legal-1osso30+0m5) built-in shell (ash)
Enter 'help' for a list of built-in commands.

/home/user # ifconfig wlan0 up
ifconfig: SIOCSIFFLAGS: No such device
/home/user # lsmod
Module Size Used by
vfat 9600 1
fat 43420 1 vfat
sd_mod 20372 0
scsi_mod 82016 1 sd_mod
iphb 3300 0
rfcomm 33620 14
panic_info_buff 2820 0
sco 9544 2
l2cap 21060 9 rfcomm
ext3 96324 1
omaplfb 10592 0
jbd 43220 1 ext3
pvrsrvkm 120384 7 omaplfb
bridgedriver 156844 1
g_file_storage 25620 0
uinput 7040 0
board_rx51_camera 5216 1
omap_previewer_hack 10840 0
omap34xxcam_mod 18308 8
isp_mod 90288 3 board_rx51_camera,omap_previewer_hack,omap34xxcam_ mod
iovmm 6724 1 isp_mod
videobuf_dma_sg 9348 3 omap_previewer_hack,omap34xxcam_mod,isp_mod
videobuf_core 14020 3 omap_previewer_hack,omap34xxcam_mod,videobuf_dma_s g
omap3_iommu 1156 0
iommu2 4096 0
iommu 8648 3 isp_mod,iovmm,iommu2
dspbridge 1284 0
mmc_block 8964 4
ssi_mcsaab_imp 11316 0
phonet 15336 21 ssi_mcsaab_imp
cmt_speech 8952 1
omap_hsmmc 12352 0
wl12xx 76864 0
smc91x 15428 0
hci_h4p 16072 0
mii 4096 1 smc91x
tsc2005 7744 0
omap_wdt 4940 1
omap_ssi 18116 2 ssi_mcsaab_imp,cmt_speech
mac80211 122954 1 wl12xx
crc7 1216 1 wl12xx
mmc_core 46996 2 mmc_block,omap_hsmmc
nokia_av 6016 0
bluetooth 53596 6 rfcomm,sco,l2cap,hci_h4p
fmtx_si4713 28372 2
ad5820 3868 1
adp1653 4432 1
smia_sensor 7244 1
leds_lp5523 9984 0
et8ek8 8736 1
rtc_twl4030 4482 0
leds_twl4030_vibra 3840 0
videodev 28160 2 omap34xxcam_mod,fmtx_si4713
v4l1_compat 12100 1 videodev
compat_ioctl32 832 1 fmtx_si4713
lis302dl 6848 0
smiaregs 6656 4 ad5820,adp1653,smia_sensor,et8ek8
led_class 2948 2 leds_lp5523,leds_twl4030_vibra
v4l2_int_device 2816 6 board_rx51_camera,omap34xxcam_mod,ad5820,adp1653,s mia_sensor,et8ek8
twl4030_wdt 3468 1
tsl2563 4864 0
rtc_core 13208 1 rtc_twl4030
/home/user #




plz help. i request....:(

Re: ifconfig wlan0 up failed
 

@amank053,

For some reason you don't have the module cfg80211 loaded. Have you tried rebooting and seeing if it works then?

Otherwise, do, again as root:

# modprobe cfg80211

and then try the ifconfig wlan0 up again.

QUESTION: besides wifi-switcher, have you installed and/or played with other wlan-tweaking tools?

Re: ifconfig wlan0 up failed
 

Sir, thnx for your concern.
Yes sir i have tried rebooting. I am not good at this xterminal commands still then i am doing my best.


I tried doing as you said and here is the output.

BusyBox v1.10.2 (Debian 3:1.10.2.legal-1osso30+0m5) built-in shell (ash)
Enter 'help' for a list of built-in commands.

~ $ sudo gainroot
Root shell enabled


BusyBox v1.10.2 (Debian 3:1.10.2.legal-1osso30+0m5) built-in shell (ash)
Enter 'help' for a list of built-in commands.

/home/user # modprobe cfg80211
FATAL: Module cfg80211 not found.
/home/user # ifconfig wlan0 up
ifconfig: SIOCSIFFLAGS: No such device
/home/user #


no sir i have not used any other wlan- tweaking tool....
thnku sir,

Plz Help...:(

Re: ifconfig wlan0 up failed
 

OK that's weird. What kernel are you using?

Can you run this on the terminal (as normal user, no need to be root):

$ uname -a

and then

$ ls -l /lib/modules

and then

$ ls -l /lib/modules/`uname -r`

those above are ``back-ticks`` (or grave accent, or whatever you want to call them).

if you don't manage to run the last command, do this:

$ uname -r

you should see something like "3.2.0-32-generic" (more likely 2.6.28-bla-bla). Then

$ ls -l /lib/modules/2.6.28-bla_bla (i.e. what uname -r returned)

If you post the output of the above commands, we will know which kernel you are running and which modules are available. We can take it from there.

Re: ifconfig wlan0 up failed
 

Sir, I tried my best...
let me show you the output...
when i excutd frst two cmmnds...
this was the output

BusyBox v1.10.2 (Debian 3:1.10.2.legal-1osso30+0m5) built-in shell (ash)
Enter 'help' for a list of built-in commands.

~ $ uname -a
Linux Nokia-N900 2.6.28-omap1 #1 PREEMPT Fri Aug 6 11:50:00 EEST 2010 armv7l unknown
~ $ ls -l /lib/modules
drwxr-xr-x 2 root root 7600 Sep 21 2011 2.6.28-omap1
lrwxrwxrwx 1 root root 12 Sep 21 2011 current -> 2.6.28-omap1
~ $



and sir after running the hird command..i.e.
$ ls -l /lib/modules/`uname -r`

the output was...



bluetooth.ko
-rw-r--r-- 1 root root 19352 Aug 6 2010 bnep.ko
-rw-r--r-- 1 root root 10000 Aug 6 2010 board-rx51-camera.ko
-rw-r--r-- 1 root root 188848 Aug 6 2010 bridgedriver.ko
-rw-r--r-- 1 root root 14828 Aug 6 2010 cmt_speech.ko
-rw-r--r-- 1 root root 2168 Aug 6 2010 compat_ioctl32.ko
-rw-r--r-- 1 root root 2660 Aug 6 2010 crc7.ko
-rw-r--r-- 1 root root 3908 Aug 6 2010 dspbridge.ko
-rw-r--r-- 1 root root 13280 Aug 6 2010 et8ek8.ko
-rw-r--r-- 1 root root 63996 Aug 6 2010 ext2.ko
-rw-r--r-- 1 root root 127816 Aug 6 2010 ext3.ko
-rw-r--r-- 1 root root 58868 Aug 6 2010 fat.ko
-rw-r--r-- 1 root root 38208 Aug 6 2010 fmtx-si4713.ko
-rw-r--r-- 1 root root 65660 Aug 6 2010 fuse.ko
-rw-r--r-- 1 root root 41152 Aug 6 2010 g_file_storage.ko
-rw-r--r-- 1 root root 53192 Aug 6 2010 g_nokia.ko
-rw-r--r-- 1 root root 28220 Aug 6 2010 g_softupd.ko
-rw-r--r-- 1 root root 22944 Aug 6 2010 g_zero.ko
-rw-r--r-- 1 root root 24388 Aug 6 2010 hci_h4p.ko
-rw-r--r-- 1 root root 38424 Aug 6 2010 hid.ko
-rw-r--r-- 1 root root 22436 Aug 6 2010 hidp.ko
-rw-r--r-- 1 root root 14548 Aug 6 2010 iommu.ko
-rw-r--r-- 1 root root 7004 Aug 6 2010 iommu2.ko
-rw-r--r-- 1 root root 11644 Aug 6 2010 iovmm.ko
-rw-r--r-- 1 root root 15228 Aug 6 2010 ip_tables.ko
-rw-r--r-- 1 root root 6712 Aug 6 2010 iphb.ko
-rw-r--r-- 1 root root 5772 Aug 6 2010 iptable_filter.ko
-rw-r--r-- 1 root root 107040 Aug 6 2010 isp-mod.ko
-rw-r--r-- 1 root root 56688 Aug 6 2010 jbd.ko
-rw-r--r-- 1 root root 30584 Aug 6 2010 l2cap.ko
-rw-r--r-- 1 root root 6468 Aug 6 2010 led-class.ko
-rw-r--r-- 1 root root 16004 Aug 6 2010 leds-lp5523.ko
-rw-r--r-- 1 root root 8344 Aug 6 2010 leds-twl4030-vibra.ko
-rw-r--r-- 1 root root 17344 Aug 6 2010 lirc_dev.ko
-rw-r--r-- 1 root root 11860 Aug 6 2010 lirc_rx51.ko
-rw-r--r-- 1 root root 12040 Aug 6 2010 lis302dl.ko
-rw-r--r-- 1 root root 79096 Aug 6 2010 lockd.ko
-rw-r--r-- 1 root root 150364 Aug 6 2010 mac80211.ko
-rw-r--r-- 1 root root 6116 Aug 6 2010 mii.ko
-rw-r--r-- 1 root root 15800 Aug 6 2010 mmc_block.ko
-rw-r--r-- 1 root root 63268 Aug 6 2010 mmc_core.ko
-rw-r--r-- 1 root root 2124 Sep 21 2011 modules.alias
-rw-r--r-- 1 root root 69 Sep 21 2011 modules.ccwmap
-rw-r--r-- 1 root root 6885 Sep 21 2011 modules.dep
-rw-r--r-- 1 root root 73 Sep 21 2011 modules.ieee1394map
-rw-r--r-- 1 root root 141 Sep 21 2011 modules.inputmap
-rw-r--r-- 1 root root 81 Sep 21 2011 modules.isapnpmap
-rw-r--r-- 1 root root 74 Sep 21 2011 modules.ofmap
-rw-r--r-- 1 root root 99 Sep 21 2011 modules.pcimap
-rw-r--r-- 1 root root 43 Sep 21 2011 modules.seriomap
-rw-r--r-- 1 root root 31879 Sep 21 2011 modules.symbols
-rw-r--r-- 1 root root 1637 Sep 21 2011 modules.usbmap
-rw-r--r-- 1 root root 11428 Aug 6 2010 msdos.ko
-rw-r--r-- 1 root root 303816 Aug 6 2010 nfs.ko
-rw-r--r-- 1 root root 13012 Aug 6 2010 nokia-av.ko
-rw-r--r-- 1 root root 3224 Aug 6 2010 omap3-iommu.ko
-rw-r--r-- 1 root root 27704 Aug 6 2010 omap34xxcam-mod.ko
-rw-r--r-- 1 root root 21920 Aug 6 2010 omap_hsmmc.ko
-rw-r--r-- 1 root root 18524 Aug 6 2010 omap_previewer_hack.ko
-rw-r--r-- 1 root root 30072 Aug 6 2010 omap_ssi.ko
-rw-r--r-- 1 root root 9472 Aug 6 2010 omap_wdt.ko
-rw-r--r-- 1 root root 15276 Aug 6 2010 omaplfb.ko
-rw-r--r-- 1 root root 4060 Aug 6 2010 panic_info_buff.ko
-rw-r--r-- 1 root root 5848 Aug 6 2010 pcbc.ko
-rw-r--r-- 1 root root 25688 Aug 6 2010 phonet.ko
-rw-r--r-- 1 root root 19968 Aug 6 2010 pn_pep.ko
-rw-r--r-- 1 root root 144348 Aug 6 2010 pvrsrvkm.ko
-rw-r--r-- 1 root root 28352 Aug 6 2010 radio-bcm2048.ko
-rw-r--r-- 1 root root 47988 Aug 6 2010 rfcomm.ko
-rw-r--r-- 1 root root 13728 Aug 6 2010 rpcsec_gss_krb5.ko
-rw-r--r-- 1 root root 21460 Aug 6 2010 rtc-core.ko
-rw-r--r-- 1 root root 8088 Aug 6 2010 rtc-twl4030.ko
-rw-r--r-- 1 root root 17108 Aug 6 2010 sco.ko
-rw-r--r-- 1 root root 119016 Aug 6 2010 scsi_mod.ko
-rw-r--r-- 1 root root 2172 Aug 6 2010 scsi_wait_scan.ko
-rw-r--r-- 1 root root 30972 Aug 6 2010 sd_mod.ko
-rw-r--r-- 1 root root 22984 Aug 6 2010 smc91x.ko
-rw-r--r-- 1 root root 11364 Aug 6 2010 smia-sensor.ko
-rw-r--r-- 1 root root 9676 Aug 6 2010 smiaregs.ko
-rw-r--r-- 1 root root 18056 Aug 6 2010 ssi_char.ko
-rw-r--r-- 1 root root 19548 Aug 6 2010 ssi_mcsaab_imp.ko
-rw-r--r-- 1 root root 189464 Aug 6 2010 sunrpc.ko
-rw-r--r-- 1 root root 13416 Aug 6 2010 tsc2005.ko
-rw-r--r-- 1 root root 8772 Aug 6 2010 tsl2563.ko
-rw-r--r-- 1 root root 17612 Aug 6 2010 tun.ko
-rw-r--r-- 1 root root 6772 Aug 6 2010 twl4030_wdt.ko
-rw-r--r-- 1 root root 11924 Aug 6 2010 uinput.ko
-rw-r--r-- 1 root root 40324 Aug 6 2010 usb-storage.ko
-rw-r--r-- 1 root root 23544 Aug 6 2010 usbhid.ko
-rw-r--r-- 1 root root 26952 Aug 6 2010 usbtest.ko
-rw-r--r-- 1 root root 15840 Aug 6 2010 v4l1-compat.ko
-rw-r--r-- 1 root root 13112 Aug 6 2010 v4l2-common.ko
-rw-r--r-- 1 root root 4864 Aug 6 2010 v4l2-int-device.ko
-rw-r--r-- 1 root root 15416 Aug 6 2010 vfat.ko
-rw-r--r-- 1 root root 19428 Aug 6 2010 videobuf-core.ko
-rw-r--r-- 1 root root 14680 Aug 6 2010 videobuf-dma-sg.ko
-rw-r--r-- 1 root root 36212 Aug 6 2010 videodev.ko
-rw-r--r-- 1 root root 99084 Aug 6 2010 wl12xx.ko
-rw-r--r-- 1 root root 17364 Aug 6 2010 x_tables.ko
-rw-r--r-- 1 root root 4328 Aug 6 2010 xt_tcpudp.ko
~ $

sir plz help...:(