Proxmox HA

https://pve.proxmox.com/wiki/Install_Proxmox_VE_on_Debian_11_Bullseye

netinstall ISO: https://www.debian.org/distrib/netinst

Clone VM 2 Times and make these changes:

nano /etc/network/interfaces
-> Change IP!

nano /etc/hosts
-> Change IP and 2 Hostnames!

hostnamectl set-hostname nodeX

pvecm updatecerts --force

https://www.thomas-krenn.com/de/wiki/Proxmox_HA_Cluster_erstellen