Raspberry Pi 5 Proxmox VE Cluster

Install a standard Raspberry Pi OS (Debian Wormbook)

Configure /etc/hosts for all 4 boards

192.168.1.101 node001.proxmox.com node001
192.168.1.175 node002.proxmox.com node002
192.168.1.213 node003.proxmox.com node003
192.168.1.182 node004.proxmox.com node004

Disable IPv6 (Optional)

Change system source list

deb https://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm-updates main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm-backports main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/debian-security bookworm-security main contrib non-free

sudo vim /etc/sysctl.conf

net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
sysctl -p

Install Proxmox VE

Add the Proxmox VE repository

echo 'deb [arch=arm64] https://mirrors.apqa.cn/proxmox/debian/pve bookworm port'>/etc/apt/sources.list.d/pveport.list
curl -L https://mirrors.apqa.cn/proxmox/debian/pveport.gpg -o /etc/apt/trusted.gpg.d/pveport.gpg 
apt update && apt full-upgrade -y
apt install ifupdown2 -y
apt install proxmox-ve postfix open-iscsi -y

Asssign IP using the PVE interface: IP:8006
Delete the default eth0, and then add a bridge vmbr0
IP 192.168.1.182/24 GATEWAY 192.168.1.240 BrIdge eth0, and click Create.