Imunify360 installation Failed to get package version error on CloudLinux 9.x

Issue

Customers attempting to install Imunify360 on a server running WHM/cPanel with CloudLinux OS 9.x report failures with both the official deployment script (i360deploy.sh) and manual DNF installation.

The script terminates with the error "Unable to get package version". Manual DNF attempts result in a 404 error when trying to access the repository metadata: https://repo.imunify360.cloudlinux.com/defence360/el/9/x86_64/repodata/repomd.xml. 

[root@randomserver~]# bash i360deploy.sh
[2025-03-20 17:20:57] Checking for an update to i360deploy.sh
[2025-03-20 17:20:57] Downloading i360deploy.sh.repo_version (please wait)
[2025-03-20 17:20:58] i360deploy.sh is already the latest version (2.123) - continuing
Detecting ostype... centos
[2025-03-20 17:20:58] Checking prerequisites...
[2025-03-20 17:20:58] In a few moments the script will install latest imunify360-firewall package (w/dependencies)... (Ctrl-C to cancel)
[2025-03-20 17:21:37] Failed to get package version

Environment

• Imunify360
• WHM/cPanel
• DNF / YUM

Solution

Reinstall alt-python38 related packages

For systems using DNF:

dnf reinstall alt-python38*

For systems using YUM:

yum reinstall alt-python38*