ubuntu-drivers-common fails when no PATH environment variable is passed

This bug was fixed in the package ubuntu-drivers-common - 1:0.7.6.1

---------------
ubuntu-drivers-common (1:0.7.6.1) focal; urgency=medium

  * Make sure that the PATH environment variable is set (LP: #1854472).

 -- Alberto Milone <email address hidden> Fri, 29 Nov 2019 11:06:12 +0100

Hello Alberto, or anyone else affected,

Accepted ubuntu-drivers-common into eoan-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/ubuntu-drivers-common/1:0.7.6.0.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested and change the tag from verification-needed-eoan to verification-done-eoan. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-eoan. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

Hello Alberto, or anyone else affected,

Accepted ubuntu-drivers-common into bionic-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/ubuntu-drivers-common/1:0.5.2.5 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested and change the tag from verification-needed-bionic to verification-done-bionic. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-bionic. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

I can confirm that the problem is solved in bionic:

:~$ PATH="" /usr/bin/ubuntu-drivers devices
:~$ apt-cache policy ubuntu-drivers-common
ubuntu-drivers-common:
  Installed: 1:0.5.2.5
  Candidate: 1:0.5.2.5
  Version table:
 *** 1:0.5.2.5 400
        400 http://archive.ubuntu.com/ubuntu bionic-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     1:0.5.2.4 500
        500 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
     1:0.5.2 500
        500 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages

This my verification for eoan.

This is the old package and the failure:

:~$ apt-cache policy ubuntu-drivers-common
ubuntu-drivers-common:
  Installed: 1:0.7.6
  Candidate: 1:0.7.6
  Version table:
 *** 1:0.7.6 500
        500 http://archive.ubuntu.com/ubuntu eoan/main amd64 Packages
        100 /var/lib/dpkg/status

:~$ PATH="" /usr/bin/ubuntu-drivers devices
ERROR:root:could not open aplay -l
Traceback (most recent call last):
  File "/usr/share/ubuntu-drivers-common/detect/sl-modem.py", line 38, in detect
    universal_newlines=True)
  File "/usr/lib/python3.7/subprocess.py", line 800, in __init__
    restore_signals, start_new_session)
  File "/usr/lib/python3.7/subprocess.py", line 1551, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'aplay': 'aplay'
Traceback (most recent call last):
  File "/usr/bin/ubuntu-drivers", line 268, in <module>
    sys.exit(command(args))
  File "/usr/bin/ubuntu-drivers", line 85, in command_devices
    sys_path=sys_path, freeonly=args.free_only)
  File "/usr/lib/python3/dist-packages/UbuntuDrivers/detect.py", line 543, in system_device_drivers
    if not _is_manual_install(apt_cache[pkg]):
  File "/usr/lib/python3/dist-packages/UbuntuDrivers/detect.py", line 226, in _is_manual_install
    stderr=subprocess.PIPE)
  File "/usr/lib/python3.7/subprocess.py", line 800, in __init__
    restore_signals, start_new_session)
  File "/usr/lib/python3.7/subprocess.py", line 1551, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'modinfo': 'modinfo'

And this is what happens after installing the package in eoan-proposed:

:~$ PATH="" /usr/bin/ubuntu-drivers devices
== /sys/devices/pci0000:00/0000:00:1c.0/0000:02:00.0 ==
modalias : pci:v00008086d000024FDsv00008086sd00000010bc02sc80i00
vendor : Intel Corporation
model : Wireless 8265 / 8275 (Dual Band Wireless-AC 8265)
driver : backport-iwlwifi-dkms - distro free

:~$ apt-cache policy ubuntu-drivers-common
ubuntu-drivers-common:
  Installed: 1:0.7.6.0.1
  Candidate: 1:0.7.6.0.1
  Version table:
 *** 1:0.7.6.0.1 400
        400 http://archive.ubuntu.com/ubuntu eoan-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     1:0.7.6 500
        500 http://archive.ubuntu.com/ubuntu eoan/main amd64 Packages

This bug was fixed in the package ubuntu-drivers-common - 1:0.7.6.0.1

---------------
ubuntu-drivers-common (1:0.7.6.0.1) eoan; urgency=medium

  * Make sure that the PATH environment variable is set (LP: #1854472).

 -- Alberto Milone <email address hidden> Fri, 29 Nov 2019 11:06:12 +0100

The verification of the Stable Release Update for ubuntu-drivers-common has completed successfully and the package is now being released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

This bug was fixed in the package ubuntu-drivers-common - 1:0.5.2.5

---------------
ubuntu-drivers-common (1:0.5.2.5) bionic; urgency=medium

  * ubuntu-drivers:
    - Make sure that the PATH environment variable is set (LP: #1854472).

 -- Alberto Milone <email address hidden> Mon, 02 Dec 2019 10:31:00 +0100