Cpanel/WHM - как установить панель на Ubuntu 20.04

# apt update && apt upgrade -y
# cd /home && curl -o latest -L https://securedownloads.cpanel.net/latest && sh latest
# reboot

По поводу Ubuntu 22.04 - пока нет поддержки:

2023-07-25 19:43:42  370 [1024] (ERROR): cPanel, L.L.C. does not support Ubuntu version 22.
2023-07-25 19:43:42  371 [1024] (ERROR): cPanel & WHM does not support the version of the Linux distribution you are running. You will need to install on one of the supported versions of a Linux distribution listed at https://go.cpanel.net/supported-os