[Bug 1807032] Re: RELEASE_UPGRADER_ALLOW_THIRD_PARTY env variable not passed to dist-upgrader tarball

[Brian Murray]

** Tags added: bionic cosmic

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https://bugs.launchpad.net/bugs/1807032

Title:
  RELEASE_UPGRADER_ALLOW_THIRD_PARTY env variable not passed to dist-
  upgrader tarball

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  ubuntu-release-upgrader indicates that
  RELEASE_UPGRADER_ALLOW_THIRD_PARTY can be set in the environment so
  that release upgrades will be attempted without commenting out third
  party mirrors or repositories, however in practice this is untrue.
  This doesn't work because pkexec is used to call do-release-upgrade,
  and it doesn't pass on env, and because sudo (used for
  DistUpgradeViewText) is called with -E. This should be sorted out so
  that the documentation is not lying and so upgrades with PPAs enabled
  can be attempted.

  Its possible to confirm the fix for this bug by looking at /var/log
  /dist-upgrade/main.log for a PPA not being commented out or the
  following line:

  2018-12-05 14:23:29,008 WARNING mirror check skipped, *overriden* via
  config

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