Error for wireless request set mode 8b06 set failed on device wlan0 cannot allocate memory

Hey all,

I am trying to set up an ad-hoc network from the Pi.
The setup is a clean install with the latest Raspbian-image (28-10).

I have tried it with a rt73 and a rtl8187.

What works: connect to a network.
Where i am getting stuck:

pi@raspberrypi ~ $ sudo iwconfig wlan1 mode ad-hoc
Error for wireless request "Set Mode" (8B06) :
    SET failed on device wlan1 ; Device or resource busy.

pi@raspberrypi ~ $ sudo iwconfig wlan0 mode ad-hoc
Error for wireless request "Set Mode" (8B06) :
    SET failed on device wlan0 ; Operation not supported.
pi@raspberrypi ~ $ 

Please help me out

Not sure if you are still wondering about this post but I had the same problem. I tried shutting down the wlan0 device using:

sudo ifconfig wlan0 down

and then using the command:

sudo iwconfig wlan0 mode Ad-Hoc

but this doesn’t work. But if I put the two commands together separated by a semicolon it does work…:

sudo ifconfig wlan0 down;sudo iwconfig wlan0 mode Ad-Hoc

From there on you can change the settings of the wlan0 device ie:

sudo iwconfig essid RaspberryPiNetwork
sudo iwconfig key «somekey»
etc…

The raspian has a service called ifplugd. This ifplugd is a daemon which will automatically configure your ethernet device when it is plugged in and automatically unconfigure it if it is pulled.

So, it does the device stay busy. Disabling it allow you to use ifconfig and iwconfig normally. Just use the comand:

$ sudo service ifplugd stop

And be happy

FYI, hopefully Google picks this up to save someone else some trouble, I spent a few hrs until stumbling on brebete’s post:

root@raspberrypi:~# macchanger -A wlan0
Permanent MAC: xx:xx:xx
Current MAC: xx:xx:xx
ERROR: Can’t change MAC: interface up or not permission: Device or resource busy

After kicking around why ifconfig wlan0 down wasn’t really working, his solution is spot on and wish there was a better hint in logs or screen to have helped save this time.

service ifplugd stop; ifconfig wlan0 down; macchanger -r wlan0; ifconfig wlan0 up; service ifplugd start

I also get the «Device or resource busy» error to the «sudo iwconfig wlan0 mode Ad-Hoc» command.
I tried the «sudo service ifplugd stop» fix but get «Failed to stop ifplugd.service: Unit ifplugd.service not loaded.»
So I guess that since the fix in 2013 something has changed. (I am using Raspberry Pi Zero W and Raspian Stretch)

Also, placing both commands on one line separated by a semicolon does not fix the problem.

What is causing the «Device or resource busy» error and how do I fix it?

Background — I am trying to set up the Babel mesh network using this script: https://gist.github.com/Paspartout/e063 … 10029118ab

LATER:
Further to my previous post of 4 March, it appears that my problem occurs with the Stretch release but not the Jessie release. The Babel script I quote runs OK with Jessie.

I see some references elsewhere mentioning various network problems when moving from Jessie to Stretch, especially tutorials no longer working. For example this one:

https://somesquares.org/blog/2017/10/Ra … Pi-router/

says: «Differences between what I found in previous tutorials and what I needed to do related mainly to the switch from configuring the WiFi interface device via the /etc/network/interfaces file (used under Jessie and prior versions of Raspbian) to using the /etc/dhcpcd.conf file (as used by Stretch).

Does anyone know where to look to find clear explanations of differences?

Hello Guys,
How Are You ? I Hope You All are Fine.

Right now I Am Working On Raspberry pi Zero W WiFi Mesh Network.

Aim : Configure Raspberry pi Zero W WiFi Mesh Network.

please help How To Archived Raspberry pi Zero W WiFi Mesh Network configuration and what’s i need ? ,so i can complete my task.

Hussain Kheti.

Kheti wrote: ↑

Thu Aug 02, 2018 9:22 am

Hello Guys,
How Are You ? I Hope You All are Fine.

Right now I Am Working On Raspberry pi Zero W WiFi Mesh Network.

Aim : Configure Raspberry pi Zero W WiFi Mesh Network.

please help How To Archived Raspberry pi Zero W WiFi Mesh Network configuration and what’s i need ? ,so i can complete my task.

Hussain Kheti.

So why is the same, older topic solved?
viewtopic.php?f=28&t=219176&p=1346201#p1346201

«topic does not exist» …..
PeterO

PeterO wrote: ↑

Thu Aug 02, 2018 10:46 am

«topic does not exist» …..
PeterO

I also reported it as a duplicate, so probably removed by mod or OP

Same issue on Raspbian Buster trying to change mode to Ad-Hoc;

$ sudo iwconfig wlan0 mode Ad-Hoc
Error for wireless request "Set Mode" (8B06) : 
		SET failed on device wlan0 ; Device or resource busy

Stopping wpa_supplicant AND dhcpcd worked for me.

Stopping the wpa_supplicant was inddeed the solution to get a working Ad-Hoc on my Raspberry 2 (buster OS).

The command were:

wpa_cli terminate
sudo ifconfig wlan0 down
sudo iwconfig wlan0 mode ad-hoc
sudo iwconfig wlan0 essid my-adhoc-name
sudo iwconfig wlan0 channel 1
sudo ifconfig wlan0 up

thx nbrub!

I’m trying to put my adapter in monitor mode, but occurs the error: Error for wireless request set mode.

iw list | grep "Supported interface modes" -A10 Supported interface modes:
         * IBSS
         * managed
         * AP
         * monitor
         * P2P-client
         * P2P-GO
    Band 1:
        Capabilities: 0x1962
            HT20/HT40
            Static SM Power Save

lsusb
Bus 001 Device 003: ID 2357:0107  
Bus 001 Device 002: ID 80ee:0021 VirtualBox USB Tablet
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

lspci -knn
00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma] [8086:1237] (rev 02)
00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] [8086:7000]
00:01.1 IDE interface [0101]: Intel Corporation 82371AB/EB/MB PIIX4 IDE [8086:7111] (rev 01)
    Kernel driver in use: ata_piix
    Kernel modules: ata_piix, ata_generic
00:02.0 VGA compatible controller [0300]: InnoTek Systemberatung GmbH VirtualBox Graphics Adapter [80ee:beef]
    Kernel driver in use: vboxvideo
    Kernel modules: vboxvideo
00:03.0 Ethernet controller [0200]: Intel Corporation 82540EM Gigabit Ethernet Controller [8086:100e] (rev 02)
    Subsystem: Intel Corporation PRO/1000 MT Desktop Adapter [8086:001e]
    Kernel driver in use: e1000
    Kernel modules: e1000
00:04.0 System peripheral [0880]: InnoTek Systemberatung GmbH VirtualBox Guest Service [80ee:cafe]
    Kernel driver in use: vboxguest
    Kernel modules: vboxguest
00:05.0 Multimedia audio controller [0401]: Intel Corporation 82801AA AC'97 Audio Controller [8086:2415] (rev 01)
    Subsystem: Dell 82801AA AC'97 Audio Controller [1028:0177]
    Kernel driver in use: snd_intel8x0
    Kernel modules: snd_intel8x0
00:06.0 USB controller [0c03]: Apple Inc. KeyLargo/Intrepid USB [106b:003f]
    Kernel driver in use: ohci-pci
    Kernel modules: ohci_pci
00:07.0 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI [8086:7113] (rev 08)
    Kernel driver in use: piix4_smbus
    Kernel modules: i2c_piix4
00:08.0 Ethernet controller [0200]: Intel Corporation 82540EM Gigabit Ethernet Controller [8086:100e] (rev 02)
    Subsystem: Intel Corporation PRO/1000 MT Desktop Adapter [8086:001e]
    Kernel driver in use: e1000
    Kernel modules: e1000
00:0d.0 SATA controller [0106]: Intel Corporation 82801HM/HEM (ICH8M/ICH8M-E) SATA Controller [AHCI mode] [8086:2829] (rev 02)
    Kernel driver in use: ahci
    Kernel modules: ahci

iwconfig
lo        no wireless extensions.

wlan0     unassociated  Nickname:"<WIFI@REALTEK>"
          Mode:Managed  Frequency=2.412 GHz  Access Point: Not-Associated   
          Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

eth1      no wireless extensions.

eth0      no wireless extensions.

iwconfig wlan0 mode monitor
Error for wireless request "Set Mode" (8B06) :
    SET failed on device wlan0 ; Operation not permitted.

asked Feb 15, 2018 at 18:48