Yum/dnf update fails with "Cannot find a valid baseurl for repo: cloudlinux-x86_64-server-9" on CloudLinux 9

Issue

yum update, dnf update, or CloudLinux 9 installation/conversion fails with the following error:

This system is receiving updates from CloudLinux Network server.
Repository cloudlinux-x86_64-server-9 is listed more than once in the configuration
Error: Cannot find a valid baseurl for repo: cloudlinux-x86_64-server-9

The issue may affect existing CloudLinux 9 servers, new CloudLinux 9 installations, or AlmaLinux 9 to CloudLinux 9 conversions.

Environment

• CloudLinux 9
• AlmaLinux 9 to CloudLinux 9 conversion
• yum / dnf
• CloudLinux Network (CLN) repositories

Solution

The issue was caused by a temporary CloudLinux Network repository infrastructure problem. It was identified and resolved by the Release Engineering team under MADSPORTAL-263.

After the fix was applied, clean the package manager metadata and retry the failed operation:

dnf clean all
dnf update

If the error occurred during CloudLinux 9 installation or conversion, retry the installation or conversion process after confirming that CloudLinux repositories are accessible again.

If the system still reports the same error, or if the conversion appears to be only partially completed, collect a doctor report and contact CloudLinux Support for further verification.

Cause

Our team performed an update on the server that maintains the list of mirrors (kernel patches). Two downstream servers that treat this server as their upstream source were unable to properly pull in the updated data, which resulted in a tainted cache and returned empty responses to clients.

This behavior should not occur with our current codebase, and our team is actively investigating why it happened to prevent a recurrence.

Useful links

Internal task: MADSPORTAL-263