Upgrade to 24.04 from 23.10

I am trying to upgrade from 23.10 to 24.10 by running update-manager. The GUI starts fine and says 24.10 is available and that I should upgrade. Clicking on the upgrade button results in a warning that my Ubuntu release is not supported.

Checking for a new Ubuntu release
Your Ubuntu release is not supported anymore.
For upgrade information, please visit:
http://www.ubuntu.com/releaseendoflife

Please install all available updates for your release before upgrading.

I have also tried do-release-upgrade but this results in the same error.

This issue seems like it may be related to No option to upgrade from 23.10 to 24.04 but I do get the option to upgrade but it does not seem to work.

Please advise if any additional information is needed to help resolve.

Thanks

Hi

What is the output of the following terminal command?

sudo apt update && sudo apt full-upgrade

it seems to work fine, though it only updates a few packages:

Hit:1 https://packages.microsoft.com/repos/code stable InRelease
Hit:2 http://security.ubuntu.com/ubuntu mantic-security InRelease           
Hit:3 http://au.archive.ubuntu.com/ubuntu mantic InRelease    
Hit:4 http://au.archive.ubuntu.com/ubuntu mantic-updates InRelease
Hit:5 http://au.archive.ubuntu.com/ubuntu mantic-backports InRelease
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
1 package can be upgraded. Run 'apt list --upgradable' to see it.
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back:
  r-cran-bh
0 to upgrade, 0 to newly install, 0 to remove and 1 not to upgrade.

So what happens when you install that package? Does it succeed? Then can you upgrade to 24.04?

sudo apt install r-cran-bh

damn, that fixed it. The package installed no problem. Then when I ran upgrade-manager the upgrade the process worked without issue. Thanks so much for your help

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