Imunify360 installation error | Status code: 404 for https://mirror.mariadb.org/yum/10.5/rhel9-amd64/repodata/repomd.xml

Issue

CloudLinux server administrators may encounter errors like

[2025-11-15 09:30:35] Errors during downloading metadata for repository 'mariadb':
[2025-11-15 09:30:35]   - Status code: 404 for https://mirror.mariadb.org/yum/10.5/rhel9-amd64/repodata/repomd.xml (IP: 162.55.42.214)
[2025-11-15 09:30:35] Error: Failed to download metadata for repo 'mariadb': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried
[2025-11-15 09:30:47] Failed to get package version

upon Imunify360 installation attempts.

Environment

• Imunify360
• CloudLinux
• MySQL Governor

Cause

The MariaDB repository is necessary if you need to remove the CloudLinux MySQL Governor and revert back to the version installed before installing the Governor. 

While you are using the Governor, all the packages come from CloudLinux repositories.

Regarding specifically MariaDB 10.5, since it reached EOL in June 2025, according to endoflife.date/mariadb the new URL is modified from mirror.mariadb.org to archive.mariadb.org.

Solution

Therefore, in the related repository file please feel free to replace mirror.mariadb.org with archive.mariadb.org.
 
Alternatively, you can completely disable the MariaDB repository:

yum-config-manager --disable MariaDB105

Once the repository is modified or turned off, please try installing Imunify360 again.

Useful links

• https://endoflife.date/mariadb
• https://docs.imunify360.com/installation/#installation-instructions
• https://docs.cloudlinux.com/ubuntu/features/#mysql-governor