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"Cannot find an OpenCL ICD loader library." error - Printable Version

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"Cannot find an OpenCL ICD loader library." error - hashchat - 07-05-2019

I'm having similar issues as this user here: https://hashcat.net/forum/thread-5938.html







When I run



Code:
./hashcat64.bin --benchmark





using a freshly downloaded copy of the hashcat binaries from this site, I get this error:





Code:
Cannot find an OpenCL ICD loader library.







You are probably missing the native OpenCL runtime or driver for your platform.







* AMD GPUs on Linux require this runtime and/or driver:



  "RadeonOpenCompute (ROCm)" Software Platform (1.6.180 or later)



* Intel CPUs require this runtime and/or driver:



  "OpenCL Runtime for Intel Core and Intel Xeon Processors" (16.1.1 or later)



* Intel GPUs on Linux require this runtime and/or driver:



  "OpenCL 2.0 GPU Driver Package for Linux" (2.0 or later)



* NVIDIA GPUs require this runtime and/or driver:



  "NVIDIA Driver" (367.x or later)

I am running ubuntu 18.04 on a machine with:
  • Linux kernel: 4.15.0-43-generic
  • CPU: Intel i7 6700K
  • GPU: Nvidia GTX 1070


As the user(s) in the thread had done, running "find / libOpenCL.so" results in:



Code:
find: ‘libOpenCL.so’: No such file or directory



The Nvidia driver version and the OpenCL's version appear to match, 390.116. 
Code:
$ cat /proc/driver/nvidia/version




NVRM version: NVIDIA UNIX x86_64 Kernel Module  390.116  Sun Jan 27 10:21:36 EST 2019




GCC version:  gcc version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)

$ sudo find / -iname '*OpenCL.so*'


find: ‘/run/user/1000/gvfs’: Permission denied


/usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.1


/usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.390.116


/usr/lib/i386-linux-gnu/libnvidia-opencl.so.1


/usr/lib/i386-linux-gnu/libnvidia-opencl.so.390.116



I have tried to follow the instructions in https://hashcat.net/faq/wrongdriver, including the repeated purgings and reinstallation and I am still getting this error.  How should I fix this?

Also apologies for the excessive spacing. I cannot seem to stop the forum software from adding them.

RE: "Cannot find an OpenCL ICD loader library." error - undeath - 07-05-2019

You need to install an icd loader. On ubuntu you need to install ocl-icd-libopencl1 (and possibly nvidia-opencl-icd-340)