do-release-upgrade does not show the latest LTS version

[Juan Pedro]

Canonical released Ubuntu 24.04 LTS on 25th April 2024 https://ubuntu.com/blog/canonical-releases-ubuntu-24-04-noble-numbat

However, if I run the command "/usr/bin/do-release-upgrade -c" with Ubuntu 22.04 LTs, the response says there is no new version.

I think the problem is because the command "do-release-upgrade" checks the URL http://changelogs.ubuntu.com/meta-release-lts-development, and the information provided is about 22.04 version.

When using curl, I can see the response header "last-modified" with value "Thu, 25 Apr 2024 17:11:11 GMT" the same date the new release was available.

Maybe this information has not been updated with the information of the new release?

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: ubuntu-release-upgrader-core 1:22.04.19
ProcVersionSignature: Ubuntu 6.5.0-35.35~22.04.1-generic 6.5.13
Uname: Linux 6.5.0-35-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckResult: unknown
CrashDB: ubuntu
CrashReports: 640:1001:125:7849408:2024-06-04 18:11:39.310288429 +0200:2024-06-04 18:11:40.310288429 +0200:/var/crash/_usr_share_code_code.1001.crash
CurrentDesktop: ubuntu:GNOME
Date: Mon Jun 10 15:49:59 2024
InstallationDate: Installed on 2023-09-05 (279 days ago)
InstallationMedia: Ubuntu 20.04.0 2023.03.22 LTS am "Custom Focal Fossa" (20230323)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to jammy on 2024-04-09 (62 days ago)
VarLogDistupgradeApttermlog: Error: [Errno 13] Permission denied: '/var/log/dist-upgrade/apt-term.log'
VarLogDistupgradeTermlog:

[Hans Joachim Desserud (hjd)]

Thanks for reporting.

This issue might be intentional. From what I remember, the upgrade path from LTS to LTS is not opened before the first point release. In this case that would be when 24.04.1 is avbailable. See for instance https://ubuntu.com/tutorials/upgrading-ubuntu-desktop#1-before-you-start which admittedly talk about the previous versions.

I've tried to find an official source outlining the upgrade path, but someone else might be able to chime in with the specifics.

[Nick Rosbrook (enr0n)]

It is correct that LTS to LTS+1 upgrades are not enabled until the .1 release of LTS+1. This usually happens around August.