Last Modified: 2021/06/20
1. Add an /etc/hosts entry for your machine's IP address
192.168.1.2 vhost-1.example.com2. Add Proxmox repo and update
echo "deb [arch=amd64] http://download.proxmox.com/debian/pve bullseye pve-no-subscription" > /etc/apt/sources.list.d/pve-install-repo.list
wget https://enterprise.proxmox.com/debian/proxmox-release-bullseye.gpg -O /etc/apt/trusted.gpg.d/proxmox-release-bullseye.gpg
sha512sum /etc/apt/trusted.gpg.d/proxmox-release-bullseye.gpg
apt update
apt full-upgrade3. Install necessary packages
apt install proxmox-ve postfix open-iscsi ifupdown2 openvswitch-switch4. Remove OS-Prober (not required, but recommended)
apt remove os-prober5. Now reboot
shutdown -r now6. Access PVE at https://IP-or-hostname:8006