UMM 2.9 claims to have support CentOS 9. CentOS 9 doesn't actually exist but CentOS Steam 9 does. I decided to go with Alma Linux which is based on the same architecture as Red Hat 9 and much like Debian/Ubuntu anything that runs on one should run on the other.
While trying to install UMM 2.9 on a fresh install of Alma 9 I keep running into issues. For example the startup.sh uses "service sshd start" when the proper format is "systemctrl start sshd"
there are ways to still using init scripts but that doesn't appear to be documented or included in the scripts from Ruckus
https://access.redhat.com/solutions/7030065
That step shouldn't be necessary if the scripts can be updated to support systemd
