I am trying to install ndiswrapper, and have gotten as far as extracting the .gz file. However, when I type in the "make" command, it returns the error message:

Cannot find kernel version in /usr/src/linux-2.6.21.5, is it configured? Stop.

I do not have anything in the folder /usr/src, so I don't know where it might be. I'd like to install this, so it will make my switch to Linux easier. Help is much appreciated,

You need to install your kernel source code to compile kernel modules like ndiswrapper. That's what it is complaining about - you haven't installed your kernel source code. Post what distro you are using. Most distros have a kernel source package available that you can install but it's generally not installed by default. Also post the output of:

$ uname -a

That will list the kernel you are running which will help in identifying the correct kernel source package.

Thanks a lot for responding. I am not sure what the "distro" is, but if you could tell me how to find it I will let you know. However, the output for $ uname -a is:

Linux bt 2.6.21.5 #4 SMP Thu Apr 10 04:23:56 GMT 2008 i686 Intel(R) Core(TM)2 Quad CPU Q8200 @ 2.33 GHz GenuineIntel GNU/Linux

Again, I'm very grateful to you for getting back to me, and I hope you can help me resolve this. Thank you.

OK some additional information:
- I am running Backtrack 3 on VMWare, and it says I have an "other Linux 2.6.x kernel"

I hope that helps.

Backtrack 3 is a specialized linux distribution for network penetration testing. As such, they don't appear to have a well organized ecosystem of software packages available in internet repositories or "repos". I did find this link discussing the installation of kernel source in Backtrack:

http://forums.remote-exploit.org/bac...l-sources.html

which advises to run these commands as root:

# wget http://www.offensive-security.com/kernel.lzm
# lzm2dir kernel.lzm /

You need to have internet connectivity to run the wget command which downloads the kernel source package, kernel.lzm. I have no way of knowing whether that package matches your kernel, however. You may want to try your luck at the Backtrack forum here:

http://www.backtrack-linux.org/forums/

I think I love you bro.

It all worked out and you are my hero.

hey all, i see that the solution worked for BT3. I have BT4, below are my stats:
macbook pro 5,3
uname-a output: Linux bt 2.6.35.8 #1 SMP Sun Nov 14 06:32:36 EST 2010 i686 GNU/Linux
lspci output: 04:00.0 Network controller: Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller (rev 01)

I'm trying to follow the tutorial here to get my broadcom wireless driver working, but I am having trouble installing ndiswrapper (ran into the fatal: module not found problem and was not able to find the file required for those solutions... etc.)

so I decided to backtrack (pardon the stupid pun) a bit and install ndiswrapper "the backtrack way"

i followed this tutorial: http://www.backtrack-linux.org/forum...iswrapper.html

except when I try to run the makefile, this is what comes up (error message bolded):
unfortunately I think the lzm2dir command is no longer compatible, and i hesitate to do anything BT3-related with my BT4 distro.

Sorry for being a newbie, if there are any non-newbies out there I would really appreciate it.

Thanks!