Resolved Plesk updates when running Ubuntu 24.04.1 LTS - Possible Installer Plesk bug?

[learning_curve]

Server operating system version

Ubuntu 24.04.1 LTS

Plesk version and microupdate number

18.0.64

Updating Ubuntu 24.04 is different (in file content and format) than previous Ubuntu releases;
In Ubuntu 24.04, it's via this file: /etc/apt/sources.list.d/ubuntu.sources
In Ubuntu 22.04, it's via this file: /etc/apt/sources.list
Etc

No problems at all on any of our cloud servers, running Ubuntu 24.04 with the new file content and format if / when running all usual CLI commands;
#apt update / #apt upgrade / #aptitude *** etc all run perfectly, with no errors or warnings (apart from this existing Plesk related warning)
However, running #plesk installer update in order to move to 18.0.64.1 (mini update) from 18.0.64, is when the issues begin;

Content of: /etc/apt/sources.list.d/ubuntu.sources:

Types: deb deb-src
URIs: http://uk.archive.ubuntu.com/ubuntu/
Suites: noble noble-updates noble-backports noble-proposed
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
Types: deb deb-src
URIs: http://security.ubuntu.com/ubuntu/
Suites: noble-security
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

The "error" having run #plesk installer update is:

ERROR: Components and product validation detected at least one important issue:
Enabled repositories check
  Plesk installation requires 'Ubuntu/noble/main' OS repository to be enabled.
  Make sure it is available and enabled, then try again.
  Plesk installation requires 'Ubuntu/noble/universe' OS repository to be enabled.
  Make sure it is available and enabled, then try again.

Not all packages were installed.
Visit https://support.plesk.com/ to search for a solution.
exit status 1

The error content , contradicts the identified sources...

Previously, there was no such errors, e.g. when upgrading to the next Plesk (main) release... but now, even #plesk installer install-all-updates produces the same errors. Unless we've missed something obvious, it appears to be an issue with the Plesk auto-installer / installer itself (when using this specific OS for Plesk Mini / Main updates? Plesk auto-installer / installer is surely, not still searching for /etc/apt/sources.list content when requiring Ubuntu 24.02 repositories is it? That no longer exists. This previous, similar Plesk error and fix does not apply / work with Ubuntu 24.04
Can anybody at Plesk advise?

 

[learning_curve]

Update:

It IS Plesk auto-installer / installer still searching for /etc/apt/sources.list content when requiring Ubuntu 24.02 repositories - which is wrong and will need resolving by Plesk, as soon as is practicable.

We proved this, by creating a 'noble numbat / 22.04' version of the (now not required by Ubuntu) /etc/apt/sources.list and ran the Plesk Mini update process again, which upgraded Plesk from 18.0.64 to 18.0.64.1 as required, but, predictably, also produced Ubuntu warnings, because there's now source conflicts / no release file warnings etc etc so having solved the Plesk related issue, we've removed that temporary file and look forward to Plesk resolving this soonest!

 

[learning_curve]

Plesk Bug Report posted. This thread can be changed to resolved by Admin.

 

[zvangi]

Plesk Bug Report posted. This thread can be changed to resolved by Admin.

Having a similar issue on fresh installations. Issue - Fresh install error 'Ubuntu/focal/main'

 

[learning_curve]

Having a similar issue on fresh installations. Issue - Fresh install error 'Ubuntu/focal/main'

It's similar, yes, but not exactly the same.
It's similar in that, the issue is related to your /etc/apt/sources.list.d/ubuntu.sources file.
In the separate thread that you've posted @Sebahat.hadzhi is already resolving this for you.