Linux + AMD + hashcat

[pkersey]

I know this is an old thread but just posting my success story: 

Ubuntu Server Ubuntu 18.04.6 LTS
$sudo apt-get install ocl-icd-libopencl1 opencl-headers clinfo
download and install  amdgpu-install
$ amdgpu-install --usecase=rocm --opencl=legacy,rocr -y
reboot
$ sudo apt remove amdgpu-dkms

now make and make install hashcat from the sources directly, do not use the package binaries.
reboot

Code:

root@hashcat:~# hashcat -b
hashcat (v6.2.5-446-g2e8ba6ba2) starting in benchmark mode

Benchmarking uses hand-optimized kernel code by default.
You can use it in your cracking session by setting the -O option.
Note: Using optimized kernel code limits the maximum supported password length.
To disable the optimized kernel code in benchmark mode, use the -w option.

* Device #1: Outdated POCL OpenCL driver detected!

This OpenCL driver may fail kernel compilation or produce false negatives.
We recommend using a version of POCL >= 1.9
You can use --force to override, but do not report related errors.

/sys/bus/pci/devices/0000:07:00.0/gpu_busy_percent: No such file or directory

/sys/bus/pci/devices/0000:06:00.0/gpu_busy_percent: No such file or directory

/sys/bus/pci/devices/0000:05:00.0/gpu_busy_percent: No such file or directory

/sys/bus/pci/devices/0000:04:00.0/gpu_busy_percent: No such file or directory

/sys/bus/pci/devices/0000:03:00.0/gpu_busy_percent: No such file or directory

/sys/bus/pci/devices/0000:01:00.0/gpu_busy_percent: No such file or directory

OpenCL API (OpenCL 1.2 pocl 1.1 None+Asserts, LLVM 6.0.0, SPIR, SLEEF, DISTRO, POCL_DEBUG) - Platform #1 [The pocl project]
===========================================================================================================================
* Device #1: pthread-Intel(R) Core(TM) i3-2310M CPU @ 2.10GHz, skipped

OpenCL API (OpenCL 2.1 AMD-APP (3380.4)) - Platform #2 [Advanced Micro Devices, Inc.]
=====================================================================================
* Device #2: AMD Radeon (TM) RX 480 Graphics, 8064/8192 MB (6745 MB allocatable), 36MCU
* Device #3: AMD Radeon (TM) RX 480 Graphics, 8064/8192 MB (6745 MB allocatable), 36MCU
* Device #4: Radeon RX 580 Series, 8064/8192 MB (6745 MB allocatable), 36MCU
* Device #5: Radeon RX 580 Series, 8064/8192 MB (6745 MB allocatable), 36MCU
* Device #6: Radeon RX 580 Series, 8064/8192 MB (6745 MB allocatable), 36MCU
* Device #7: AMD Radeon (TM) RX 470 Graphics, 3968/4096 MB (3264 MB allocatable), 32MCU

Benchmark relevant options:
===========================
* --optimized-kernel-enable

-------------------
* Hash-Mode 0 (MD5)
-------------------

Speed.#2.........:  6658.2 MH/s (43.82ms) @ Accel:128 Loops:256 Thr:256 Vec:1
Speed.#3.........: 12304.9 MH/s (95.40ms) @ Accel:256 Loops:1024 Thr:128 Vec:1
Speed.#4.........: 12303.9 MH/s (96.34ms) @ Accel:128 Loops:1024 Thr:256 Vec:1
Speed.#5.........: 12730.3 MH/s (92.66ms) @ Accel:128 Loops:1024 Thr:256 Vec:1
Speed.#6.........: 12315.1 MH/s (96.20ms) @ Accel:128 Loops:1024 Thr:256 Vec:1
Speed.#7.........: 10481.2 MH/s (49.76ms) @ Accel:256 Loops:512 Thr:128 Vec:1
Speed.#*.........: 66793.5 MH/s

----------------------
* Hash-Mode 100 (SHA1)
----------------------

Speed.#2.........:  2126.1 MH/s (34.09ms) @ Accel:128 Loops:64 Thr:256 Vec:1
Speed.#3.........:  3974.8 MH/s (73.64ms) @ Accel:256 Loops:256 Thr:128 Vec:1
Speed.#4.........:  3983.0 MH/s (74.23ms) @ Accel:512 Loops:256 Thr:64 Vec:1
Speed.#5.........:  4116.1 MH/s (71.67ms) @ Accel:512 Loops:256 Thr:64 Vec:1
Speed.#6.........:  4054.6 MH/s (72.91ms) @ Accel:512 Loops:256 Thr:64 Vec:1
Speed.#7.........:  3448.6 MH/s (76.41ms) @ Accel:128 Loops:1024 Thr:64 Vec:1
Speed.#*.........: 21703.1 MH/s

---------------------------
* Hash-Mode 1400 (SHA2-256)
---------------------------

Speed.#2.........:  911.8 MH/s (81.66ms) @ Accel:64 Loops:512 Thr:64 Vec:1
Speed.#3.........:  1674.0 MH/s (89.03ms) @ Accel:32 Loops:512 Thr:256 Vec:1
Speed.#4.........:  1749.9 MH/s (85.20ms) @ Accel:16 Loops:1024 Thr:256 Vec:1
Speed.#5.........:  1718.4 MH/s (86.67ms) @ Accel:16 Loops:1024 Thr:256 Vec:1
Speed.#6.........:  1744.6 MH/s (85.46ms) @ Accel:16 Loops:1024 Thr:256 Vec:1
Speed.#7.........:  1494.8 MH/s (87.55ms) @ Accel:128 Loops:256 Thr:128 Vec:1
Speed.#*.........:  9293.4 MH/s

---------------------------
* Hash-Mode 1700 (SHA2-512)
---------------------------

Speed.#2.........:  249.9 MH/s (74.47ms) @ Accel:4 Loops:512 Thr:256 Vec:1
Speed.#3.........:  433.3 MH/s (85.21ms) @ Accel:128 Loops:128 Thr:64 Vec:1
Speed.#4.........:  434.9 MH/s (85.76ms) @ Accel:8 Loops:512 Thr:256 Vec:1
Speed.#5.........:  429.5 MH/s (86.82ms) @ Accel:8 Loops:512 Thr:256 Vec:1
Speed.#6.........:  439.6 MH/s (84.77ms) @ Accel:8 Loops:512 Thr:256 Vec:1
Speed.#7.........:  366.9 MH/s (90.30ms) @ Accel:64 Loops:256 Thr:64 Vec:1
Speed.#*.........:  2354.1 MH/s