Aircrack Ch: -1 Problem in Arch Linux

Question

Currently Arch Linux , I decided to install Aircrack-ng and try on my wireless network. So I installed it and I got an Aireplay error message saying something in the lines

Either fix it, or use the -ignore-negative-one flag

So, I used the flag first. It seems to work, but I can't get a handshake. It may be just me, but I was not sure. So I decided to find this patch. I went to the Aircrack website and found it. I followed the instructions and everything was fine until "make". At that moment he issued:

config.mk:199: "WARNING: CONFIG_CFG80211_WEXT will be deactivated or not working because kernel was compiled with CONFIG_WIRELESS_EXT=n. Tools using wext interface like iwconfig will not work. To activate it build your kernel eg with CONFIG_LIBIPW=m." make -C /lib/modules/2.6.38-ARCH/build M=/home/kyle/Desktop/compat-wireless-2011-05-16 modules make: *** /lib/modules/2.6.38-ARCH/build: No such file or directory. Stop. make: *** modules Error 2 

What can I do to fix this, so I can use Aircrack?

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uname -r prints "2.6.38-ARCH" (without quotes).

Answer 1

Assuming you are using the default linux kernel (that is, not fixed, or the one you compiled yourself), this will be an error in the aircrack package, so I suggest you report it here .

I don't know much about aircrack, but based on the bug report, I think there are two ways you can fix it yourself.

• It looks like CONFIG_CFG80211_WEXT is a configuration parameter in a patch that you can turn off. However, this may remove important features.
• You can try to compile your kernel with CONFIG_LIBIPW=m , as suggested. It is not as complicated as it seems, but it means that you will need to support the kernel yourself, and not rely on pacman to do this for you. For guidance on this, see https://wiki.archlinux.org/index.php/Kernels and https://wiki.archlinux.org/index.php/Kernels/Compilation/Arch_Build_System .

Answer 2

Does aircrack require you to have the correct drivers for your network card? Have you confirmed that your card has a chipset that can be used?

Answer 3

It seems that you are using Wireless-drivers Wireless-2011-05-16, I would check that they are suitable for your wireless card. You may require MadWiFi drivers to be dependent. What is your model or model of wireless card?