[Bug 1796940] Re: ubuntu-release-upgrader-core missing a dependency

[Brian Murray]

I've verified this fix on Ubuntu 16.04 LTS.

(xenial-amd64)root at impulse:/home/bdmurray# apt-cache policy ubuntu-release-upgrader-core
ubuntu-release-upgrader-core:
  Installed: 1:16.04.30
  Candidate: 1:16.04.30
  Version table:
 *** 1:16.04.30 500
        500 http://ubuntu.osuosl.org/ubuntu xenial-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     1:16.04.29 500
        500 http://ubuntu.osuosl.org/ubuntu xenial-updates/main amd64 Packages
     1:16.04.25 500
        500 http://security.ubuntu.com/ubuntu xenial-security/main amd64 Packages
     1:16.04.12 500
        500 http://ubuntu.osuosl.org/ubuntu xenial/main amd64 Packages

(xenial-amd64)root at impulse:/home/bdmurray# do-release-upgrade
Checking for a new Ubuntu release
Get:1 Upgrade tool signature [819 B]
Get:2 Upgrade tool [1242 kB]
Fetched 1243 kB in 0s (0 B/s)
authenticate 'bionic.tar.gz' against 'bionic.tar.gz.gpg'
extracting 'bionic.tar.gz'

** Tags removed: verification-needed verification-needed-xenial
** Tags added: verification-done verification-done-xenial

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https://bugs.launchpad.net/bugs/1796940

Title:
  ubuntu-release-upgrader-core missing a dependency

Status in ubuntu-release-upgrader package in Ubuntu:
  Fix Released
Status in ubuntu-release-upgrader source package in Xenial:
  Fix Committed
Status in ubuntu-release-upgrader source package in Bionic:
  Fix Released

Bug description:
  Test Case
  ---------
  1) Install ubuntu-release-upgrader-core on an 18.04 chroot
  2) Edit /etc/update-manager/release-upgrades set Prompt=normal
  3) Run 'do-release-upgrade -d'
  4) Observe the following

  (bionic-amd64)root at impulse:~# do-release-upgrade -d
  Checking for a new Ubuntu release
  Failed to connect to https://changelogs.ubuntu.com/meta-release-development. Check your Internet connection or proxy settings
  Upgrades to the development release are only
  available from the latest supported release.

  Installing ca-certificates resolves the issue, this was likely caused
  by the fix for bug 1744318.

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