How to setup a community version of Proxmox VE 5.x-6.x

gistfile1.txt

# Disable Commercial Repo
sed -i "s/^deb/\#deb/" /etc/apt/sources.list.d/pve-enterprise.list
apt-get update

# Add PVE Community Repo
echo "deb http://download.proxmox.com/debian/pve $(grep "VERSION=" /etc/os-release | sed -n 's/.*(\(.*\)).*/\1/p') pve-no-subscription" > /etc/apt/sources.list.d/pve-no-enterprise.list
apt-get update

# Remove nag
echo "DPkg::Post-Invoke { \"dpkg -V proxmox-widget-toolkit | grep -q '/proxmoxlib\.js$'; if [ \$? -eq 1 ]; then { echo 'Removing subscription nag from UI...'; sed -i '/data.status/{s/\!//;s/Active/NoMoreNagging/}' /usr/share/javascript/proxmox-widget-toolkit/proxmoxlib.js; }; fi\"; };" > /etc/apt/apt.conf.d/no-nag-script
apt --reinstall install proxmox-widget-toolkit

Latest instructions for Proxmox 9 :)

Step 1: Update the Ceph repository from enterprise to no-subscription

sed -i \
  -e 's|https://enterprise.proxmox.com/debian/ceph-squid|http://download.proxmox.com/debian/ceph-squid|g' \
  -e 's/Components: enterprise/Components: no-subscription/g' \
  /etc/apt/sources.list.d/ceph.sources

Step 2: Remove the PVE enterprise repository file

rm /etc/apt/sources.list.d/pve-enterprise.sources

Step 3: Create the PVE no-subscription repository file

cat > /etc/apt/sources.list.d/proxmox.sources << 'EOF'
Types: deb
URIs: http://download.proxmox.com/debian/pve
Suites: trixie
Components: pve-no-subscription
Signed-By: /usr/share/keyrings/proxmox-archive-keyring.gpg
EOF

Step 4: Update the package cache

apt update