How to Install Proxmox Backup Server (PBS)

Introduction

Proxmox Backup Server (PBS) is a dedicated backup solution designed for Proxmox Virtual Environment (PVE). It provides efficient, secure, and incremental backups with built-in deduplication, allowing you to reduce storage usage while keeping reliable backups of your virtual machines and containers.

This guide explains how to install Proxmox Backup Server and perform the initial configuration.

Prerequisites

A dedicated server or virtual machine for PBS
Minimum 4 GB RAM (8 GB or more recommended)
64-bit x86 processor
Separate storage disk for backups (recommended)
Stable network connection
Latest Proxmox Backup Server ISO

Login to Crownpanel

To begin the installation process, start by mounting the Proxmox Backup Server ISO file.

To mount the ISO, click on CD-ROM, select the Proxmox Backup Server ISO from the drop-down menu, and then click the Mount button. This process will take approximately 2–3 minutes.

Once the ISO has mounted (you can check the status in the Task Log tab), navigate to the Power Control tab and perform a Reboot task on the server.

Next, switch to the VNC tab and launch VNC to start the installation.

If VNC doesn't show the proxmox backup installer, click on CTRL+ALT+DEL from the VNC console to send a reboot.

Start the Installation

When the server boots from the mounted 26.04 ISO, you'll see the installer. Choose the Install Proxmox Backup Server (Graphical) option to start the installation process.

Select:

Install Proxmox Backup Server (Graphical)

Accept the License Agreement

Read the End User License Agreement.

Click I Agree to continue.

Select Installation Disk

Choose the disk where Proxmox Backup Server will be installed.

Note: It is recommended to use a dedicated disk for the operating system and a separate disk for backup storage.

Click Next.

Configure Location Settings

Configure the following:

Country
Time Zone
Keyboard Layout

Click Next.

Configure Administrator Account

Enter the following information:

Root Password
Email Address

The email address will be used for system notifications and alerts.

Click Next.

Configure Network Settings

Configure the management network by entering:

Management Interface
Hostname (FQDN)
IP Address
CIDR Prefix
Gateway
DNS Server

Verify all information before proceeding.

Click Next.

Review Installation Summary

Review the configuration summary.

If everything is correct, click Install.

The installation process will begin.

Complete Installation

Wait until the installation finishes.

Once completed, remove the installation media and reboot the server. To unmount the ISO, switch back to CrownPanel, go to the "CD-ROM" tab, and click on "Unmount".