Problems Installing CUDA on BT4 Final

[JohnDN]

My System Specifications
EVGA 790i Ultra Motherboard
3.0GHz Dual Core Processor (Socket 775)
(2) EVGA GeForce 8600 GTS GPUs connected with SLI bridge
BackTrack 4 Final (installed on a partition of my USB HDD using the Install.sh tool)


I am trying to implement CUDA into pryit and aircrack-ng, however I am having a few problems. I was following the guide found here, http://www.backtrack-linux.org/docum..._CUDA_v2.0.pdf

First I ran "apt-get update"

Then hit Ctrl+Alt+Backspace to exit X console. I then ran "apt-get install nvidia-driver"

After it is done installing the driver I get the message
"(++) Using config file: "/root/xorg.conf.new" Number of created screes does not match number of detected devices. Configuration failed."

I notice that the xorg.conf file also lists 20 some monitors, 30 some devices, and 30 some screens when I only have one monitor and two graphics cards. I try running "nvidia-xconfig" but that does not correct this.

I can run "apt-get install cuda-toolkit" without a problem.

I try to run "apt-get install cuda-sdk", but it says the file isn't there. After searching on the forum, I found out this file was removed. However, I am having problems finding the cuda-sdk on the NVIDA website. I can only find the drivers and toolkit. Could someone post a link to the download on the NVIDA website?

Has anyone else had trouble installing the NVIDIA drivers like I have? I tried installing the newest drivers from the NVIDA website, but I ended up locking myself out of X-server because I keep getting a "Fatal server error: no screens found. giving up" message. Is there anyone to fix this without me uninstalling and reinstalling BackTrack 4 to my USB drive?

[purehate]

The screen error is normal, I always get that.

The new sdk can be downloaded from here: http://developer.download.nvidia.com..._3.1_linux.run

The drivers are for the newest kernel so make sure you have 2.6.34

[JohnDN]

Things are getting better, but I'm having problems with pyrit using CUDA now.

I was able to successfully install the Nvidia driver using apt-get. I then downloaded the latest driver from the Nvidia website, installed it, and everything is still working.

I downloaded the latest CUDA Toolkit from the Nvidia website and installed that, I didn't use the apt-get command. That seemed to be working.

UPDATE: I got Pyrit running fine, but I want to build aircrack-ng-cuda, and I need the SDK installed for that. However, when I try to install CUDA SDK it just says "Uncompressing NVIDIA GPU Computing SDK......." then it gives me two blank lines and it will stay like that for hours.

Did anyone else have problems with this?

[JohnDN]

Alright, I solved it. After it gave me the two blinking lines all I had to do was hit enter and it gave me instructions. I got the idea from logging into BT4 thats installed on a hard drive. The password is toor, but it doesnt show up when you type it.

[rustyShackelford]

Specs:
Nvidia 8400 GS
BackTrack 4 - R1 - Ubuntu 8.10 (kernel 2.6.34) (hdd install)

Question:
In the above posts, pureh@te mentions the CUDA 3.1 toolkit. On the nvidia page, they seem to delineate between the Ubuntu 8.10 (2.3 toolkit) and 9.10 (3.1 toolkit, 2.3 toolkit) packages. Since the 3.1 toolkit is for Ubuntu 9.10, can I safely use it on my comp with my distro using Ubuntu 8.10? My guess is that since pureh@te wrote the guide and posted the link to 3.1 then it should be g2g but I just wanted to make sure. I have spent about 20hrs so far trying to get CUDA + pyrit working and I know most of my problems are due to being a 'newer' linux user (i have used Ubuntu for about 2 years but they are so GUI based now my bash skills are somewhat lacking) I am however doing my best to ignore all the fancy tools included in backtrack until I get everything up and working and am more comfortable with the 'basics'

I do all on my penetration testing on my laptop and the only reason I wanted to get this working on my desktop was to be able to utilize my GPU (albeit crappy at the moment) to speed up WPA bruteforce. (disclaimer: I only test on my own personal network)