Test Case
---------
1) Install ubuntu-release-upgrader-core on an 18.04 system
2) Edit /etc/update-manager/release-upgrades set Prompt=normal
3) Run 'do-release-upgrade -d'
4) Observe the following
(bionic-amd64)root@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.
Test Case release- upgrader- core on an 18.04 system manager/ release- upgrades set Prompt=normal
---------
1) Install ubuntu-
2) Edit /etc/update-
3) Run 'do-release-upgrade -d'
4) Observe the following
(bionic- amd64)root@ impulse: ~# do-release-upgrade -d /changelogs. ubuntu. com/meta- release- development. Check your Internet connection or proxy settings
Checking for a new Ubuntu release
Failed to connect to https:/
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.