Comment 1 for bug 1920225

Even uglier traceback when trying to directly install the nvidia 470 server driver without using sudo:

ubuntu@polari:~$ ubuntu-drivers --gpgpu install nvidia:470-server
This is gpgpu mode
Traceback (most recent call last):
  File "/usr/bin/ubuntu-drivers", line 487, in <module>
    greet()
  File "/usr/lib/python3/dist-packages/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/usr/lib/python3/dist-packages/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/lib/python3/dist-packages/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/lib/python3/dist-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/click/decorators.py", line 64, in new_func
    return ctx.invoke(f, obj, *args[1:], **kwargs)
  File "/usr/lib/python3/dist-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/usr/bin/ubuntu-drivers", line 406, in install
    command_install(config)
  File "/usr/bin/ubuntu-drivers", line 167, in command_install
    pm_fd = open('/run/nvidia_runtimepm_supported', 'w')
PermissionError: [Errno 13] Permission denied: '/run/nvidia_runtimepm_supported'