{
  "name": "PBS 4 Upgrade",
  "slug": "pbs4-upgrade",
  "categories": [
    1
  ],
  "date_created": "2025-08-26",
  "type": "pve",
  "updateable": false,
  "privileged": false,
  "interface_port": null,
  "documentation": "https://pbs.proxmox.com/wiki/Upgrade_from_3_to_4",
  "website": "https://www.proxmox.com/en/proxmox-backup-server",
  "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons/webp/proxmox.webp",
  "config_path": "",
  "description": "This script guides you through upgrading Proxmox Backup Server from version 3.x (Debian 12 Bookworm) to version 4.0 (Debian 13 Trixie). It adjusts the Debian base sources, configures PBS 4 repositories in deb822 format, updates enterprise/no-subscription/test repos, runs a full system upgrade, and finalizes with a reboot.",
  "install_methods": [
    {
      "type": "default",
      "script": "tools/pve/pbs4-upgrade.sh",
      "resources": {
        "cpu": null,
        "ram": null,
        "hdd": null,
        "os": null,
        "version": null
      }
    }
  ],
  "default_credentials": {
    "username": null,
    "password": null
  },
  "notes": [
    {
      "text": "Execute this script directly on the PBS 3.x host as root.",
      "type": "info"
    },
    {
      "text": "Ensure you have a verified backup of /etc/proxmox-backup before starting.",
      "type": "warning"
    },
    {
      "text": "Do not run this on an already upgraded PBS 4.x system.",
      "type": "warning"
    },
    {
      "text": "A reboot is strongly recommended after upgrade to activate the new kernel and services.",
      "type": "info"
    }
  ]
}