Vcgencmd Call

[Alejandro-Roldan]

When running

stressberry-run out.dat

The error comes up

Awaiting stable baseline temperature...
Traceback (most recent call last):
  File "/usr/bin/stressberry-run", line 8, in <module>
    sys.exit(run())
  File "/usr/lib/python3.8/site-packages/stressberry/cli/run.py", line 92, in run
    cooldown(interval=args.cooldown, filename=args.temperature_file)
  File "/usr/lib/python3.8/site-packages/stressberry/main.py", line 14, in cooldown
    prev_tmp = measure_temp(filename=filename)
  File "/usr/lib/python3.8/site-packages/stressberry/main.py", line 37, in measure_temp
    out = subprocess.check_output(["vcgencmd", "measure_temp"]).decode("utf-8")
  File "/usr/lib/python3.8/subprocess.py", line 411, in check_output
    return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
  File "/usr/lib/python3.8/subprocess.py", line 489, in run
    with Popen(*popenargs, **kwargs) as process:
  File "/usr/lib/python3.8/subprocess.py", line 854, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/usr/lib/python3.8/subprocess.py", line 1702, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'vcgencmd'

As we can see in here the problem is that it just calls vcgencmd

File "/usr/lib/python3.8/site-packages/stressberry/main.py", line 37, in measure_temp
    out = subprocess.check_output(["vcgencmd", "measure_temp"]).decode("utf-8")

So it would be better to change it to a full path

out = subprocess.check_output(["/opt/vc/bin/vcgencmd", "measure_temp"]).decode("utf-8")

After doing grep -rn vcgencmd /usr/lib/python3.8/site-packages/stressberry/* to see where else it needs to change

/usr/lib/python3.8/site-packages/stressberry/main.py:51: out = subprocess.check_output(["vcgencmd", "measure_clock arm"]).decode("utf-8")

And do the same, change vcgencmd to the full path.

This apparently works. Will report back if I find any other issues.

Done on a Raspberry Pi 4 with Archlinux ARM.

[nschloe]

Why is /opt/vc/bin/ not in your path? Seems like a broken installation, right?

[Alejandro-Roldan]

I never noticed that /opt wasn't in my path but I checked on my x86_64 Arch installation in my main computer and it doesn't have it either, furthermore it's able to use all the packages installed there because they have a symlink in /bin; so I don't know about "broken installation". Maybe a distro thing?

[nschloe]

Perhaps. It appears to work for everyone else.

[Alejandro-Roldan]

Oh well, thanks you for your time :)

[meafs]

I'm having the same issue on Ubuntu server 64 bit on my Raspberry Pi 4B.

Terminal:

ubuntu@ubuntu:~$ stressberry-run out.dat                                        Awaiting stable baseline temperature...
Traceback (most recent call last):
  File "/home/ubuntu/.local/bin/stressberry-run", line 8, in <module>
    sys.exit(run())
  File "/home/ubuntu/.local/lib/python3.8/site-packages/stressberry/cli/run.py", line 92, in run
    cooldown(interval=args.cooldown, filename=args.temperature_file)
  File "/home/ubuntu/.local/lib/python3.8/site-packages/stressberry/main.py", line 13, in cooldown
    prev_tmp = measure_temp(filename=filename)
  File "/home/ubuntu/.local/lib/python3.8/site-packages/stressberry/main.py", line 34, in measure_temp
    out = subprocess.check_output(["vcgencmd", "measure_temp"]).decode("utf-8")
  File "/usr/lib/python3.8/subprocess.py", line 415, in check_output
    return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
  File "/usr/lib/python3.8/subprocess.py", line 493, in run
    with Popen(*popenargs, **kwargs) as process:
  File "/usr/lib/python3.8/subprocess.py", line 858, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/usr/lib/python3.8/subprocess.py", line 1704, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'vcgencmd'

Result of uname -a :

Linux ubuntu 5.4.0-1041-raspi #45-Ubuntu SMP PREEMPT Thu Jul 15 01:17:56 UTC 2021 aarch64 aarch64 aarch64 GNU/Linux

What can I do?