Airodump-ng input/output error

Hey techies,

I'm a newbie who's fascinated by Kali. My friend and I were trying to pentest his network when we got these errors:

"bash: /usr/sbin/airodump-ng: input/output error"

And when I tried to open iceweasel I got yet another error:

"Failed to execute child process "iceweasel" (input/output error)"'

What is the problem and how do I rectify it?

Please remember that I'm a tyro and am just getting my feet wet in this fascinating world of White-Hat-Hacking. So please lay it down nice and slow - in English!

Any help will be highly appreciated.

Thanks.

I'm booting Kali through a USB. The version is, kali-linux-1.0.8-i386.

My system specs are:

System Name: NA
[System Summary]

Item Value
OS Name Microsoft Windows 7 Professional
Version 6.1.7601 Service Pack 1 Build 7601
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name NA
System Manufacturer LENOVO
System Model 2767W3A
System Type X86-based PC
Processor Intel(R) Core(TM)2 Duo CPU T9400 @ 2.53GHz, 2534 Mhz, 2 Core(s), 2 Logical Processor(s)
BIOS Version/Date LENOVO 7UET94WW (3.24 ), 17/10/2012
SMBIOS Version 2.4
Windows Directory C:\Windows
System Directory C:\Windows\system32
Boot Device \Device\HarddiskVolume1
Locale United Kingdom
Hardware Abstraction Layer Version = "6.1.7601.17514"
User Name NA
Time Zone India Standard Time
Installed Physical Memory (RAM) 2.00 GB
Total Physical Memory 1.90 GB
Available Physical Memory 889 MB
Total Virtual Memory 3.80 GB
Available Virtual Memory 2.53 GB
Page File Space 1.90 GB
Page File C:\pagefile.sys

We might need a little more information on what you were doing. What were the actually commands you used for airodump-ng? Did you start a monitor? Did you kill the conflicting processes?

Just take us step by step what you did to get that error. And if you can't recreate that error again, then I wouldn't worry too much about it.