** Description changed: Observed behavior ----------------- Running: - sudo do-release-upgrade + sudo do-release-upgrade with Prompt=lts in /etc/update-manager/release-upgrades produces: - - Checking for a new Ubuntu release - There is no development version of an LTS available. - ... + Checking for a new Ubuntu release + There is no development version of an LTS available. + ... This occurs when the upgrade path from the previous LTS to the currently released LTS has not been enabled. - Problems -------- 1. The first problem is that "development release" is not defined. The man page for the command only has a single occurrence of "development release": - -d, --devel-release - If using the latest supported release, upgrade to the development release + -d, --devel-release + If using the latest supported release, upgrade to the development release ... but that man page fails to explain what "development release" means. (The man page also says "SEE ALSO update-manager(8)" but "man 8 update- manager" gets "No manual entry for update-manager in section 8.") The word "development" appears nowhere in the official documentation at https://www.releases.ubuntu.com/, which says that "There are 2 types of Ubuntu releases: Interim and LTS." So the user can only assume that "development release" refers to a release which is still under development, and is therefore not fully supported. That would not apply to release 26.04 LTS, which has been officially released (in other words, the maintainers may not yet be fully confident that upgrading in place from 24.04 LTS will work - correctly in all cases, the release itself is fully supported if + correctly in all cases, but the release itself is fully supported if installed fresh). 2. Whatever the correct definition of "development release" might be, the command as invoked above is not specifying the option to use such a release, but is instead asking that the machine be upgraded in place to the latest LTS release. Expected behavior ----------------- If the system is already running the latest LTS release, the tool should say so explicitly. If a newer LTS exists but the upgrade path has not yet been enabled, the tool should state that the upgrade path is not yet open and briefly explain why.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2168439 Title: wrong error message shown when LTS upgrade path is not available To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/2168439/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
