[Bug 1824430] Re: disco dist-upgrader tarball has a broken symlink in it

[Launchpad Bug Tracker]

** Branch linked: lp:ubuntu-release-upgrader

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https://bugs.launchpad.net/bugs/1824430

Title:
  disco dist-upgrader tarball has a broken symlink in it

Status in ubuntu-release-upgrader package in Ubuntu:
  In Progress
Status in ubuntu-release-upgrader source package in Disco:
  Fix Committed

Bug description:
  [Impact]
  The dist upgrade process is running old code from cosmic not the new code from disco, which can cause upgrades to go awry in unexpected ways.

  [Test Case]
  1) mkdir -p /var/snap/canonical-livepatch/common
  2) touch /var/snap/canonical-livepatch/common/machine-token
  3) run do-release-upgrade

  With the version of the dist-upgrader in proposed (obtained via do-
  release-upgrade -p) you will not see the bogus error message cited in
  the original description.

  [Regression Potential]
  None that I can think of, we are fixing a regression here.

  Original Description
  --------------------
  On upgrade from cosmic to disco, I was shown a bogus message about livepatch:

    Livepatch security updates are not available for Ubuntu 19.04. If
  you upgrade, Livepatch will turn off.

  I'm upgrading from cosmic, which has no livepatch support, so I
  shouldn't be shown this message.

  Bug #1816423 seems to be the same symptom, but that is reported as
  fixed.

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