[Bug 1922937] Autopkgtest regression report (apport/2.20.11-0ubuntu50.6)

[Ubuntu SRU Bot]

All autopkgtests for the newly accepted apport (2.20.11-0ubuntu50.6) for groovy have finished running.
The following regressions have been reported in tests triggered by the package:

ubuntu-release-upgrader/1:20.10.15 (armhf)


Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-
migration/groovy/update_excuses.html#apport

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

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https://bugs.launchpad.net/bugs/1922937

Title:
  reading casper-md5check.json fails

Status in apport package in Ubuntu:
  Fix Released
Status in apport source package in Focal:
  Fix Committed
Status in apport source package in Groovy:
  Fix Committed
Status in apport source package in Hirsute:
  Fix Released

Bug description:
  [Impact]
  Bugs reported by apport are not including information about the results of the md5 check of the installation media used. Additionally, users are presented with a traceback regarding the ubuntu hook which is used with all bug reports.

  [Test Case]
  1) Boot an Ubuntu 20.04 LTS or Ubuntu 20.10 install
  2) Create the file /var/log/installer/casper-md5check.json with mode 0600.
  3) Run 'ubuntu-bug coreutils'

  *** Collecting problem information

  The collected information can be sent to the developers to improve the
  application. This might take a few minutes.
  ......ERROR: hook /usr/share/apport/general-hooks/ubuntu.py crashed:
  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/apport/report.py", line 228, in _run_hook
      symb['add_info'](report, ui)
    File "/usr/share/apport/general-hooks/ubuntu.py", line 84, in add_info
      apport.hookutils.attach_casper_md5check(report,
    File "/usr/lib/python3/dist-packages/apport/hookutils.py", line 995, in attach_casper_md5check
      with open(location) as json_file:
  PermissionError: [Errno 13] Permission denied: '/var/log/installer/casper-md5check.json'

  [Where problems could occur]
  We are switching to reading the file with attach_root_command_outputs which is a well tested function in apport so the only problem would be a result of the new code being added. This works well in Hirsute so there is little chance of their being an error.

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