This guide shows how to install Proxmox VE 9 on a physical server, from the USB stick to the first running virtual machine. Proxmox VE is a free, open-source hypervisor built on Debian that runs KVM virtual machines and LXC containers from a web interface. Version 9.2 (released May 2026) is based on Debian 13 “Trixie”; the steps are the same for any 9.x release.
Short answer: Enable VT-x/AMD-V and VT-d in the BIOS, write the Proxmox VE 9 ISO to a USB stick, boot it and choose the graphical installer. Pick ZFS RAID1 on two disks (or ext4 on hardware RAID), set a static management IP, finish, then open https://SERVER-IP:8006. Disable the enterprise repository, enable pve-no-subscription, run apt update && apt full-upgrade, and upload an ISO to create your first VM.
Table of Contents
What you need
| Item | Minimum | Recommended |
|---|---|---|
| CPU | 64-bit Intel or AMD with VT-x / AMD-V | Server CPU with VT-d / AMD-Vi for PCI passthrough |
| RAM | 2 GB for Proxmox itself plus guest memory | 32 GB or more; ZFS needs about 1 GB per TB of storage extra |
| Disks | One disk | Two SSDs for ZFS RAID1 boot, separate disks or NVMe for VM storage |
| Network | One NIC | Two or more NICs: management and VM traffic separated |
Download the current ISO from the Proxmox downloads page and write it with dd, Rufus (DD mode) or balenaEtcher:
lsblk # find the USB stick, e.g. /dev/sdX
dd if=proxmox-ve_9.2-1.iso of=/dev/sdX bs=4M status=progress conv=fsync
Step 1: prepare the BIOS
Enable Intel VT-x or AMD-V (SVM), and VT-d or AMD-Vi (IOMMU) if you plan PCI passthrough. Use UEFI boot and disable Secure Boot only if your board’s firmware causes problems; Proxmox VE 9 supports Secure Boot. Set the USB stick as the first boot device.
Step 2: run the installer
- Choose Install Proxmox VE (Graphical). The terminal UI option works the same way on servers without a graphics card.
- Accept the licence and select the target disk. Click Options to choose the file system: ZFS (RAID1) across two identical disks gives bootable redundancy and snapshots; ext4 or xfs with LVM-thin suits a single disk or a hardware RAID controller. Do not put ZFS on top of hardware RAID.
- Set country, time zone and keyboard layout.
- Enter a strong root password and an e-mail address for alerts.
- Set the management network: interface, fully qualified hostname (for example
pve1.example.com), static IP in CIDR form, gateway and DNS server. - Check the summary and install. The server reboots after a few minutes; remove the USB stick.
Step 3: first login and repositories
Browse to https://SERVER-IP:8006, accept the self-signed certificate and log in as root with realm Linux PAM. Without a subscription, switch to the free repository so updates work. Proxmox VE 9 uses deb822 .sources files:
cd /etc/apt/sources.list.d/
sed -i 's/^Enabled:.*//; $a Enabled: false' pve-enterprise.sources # disable enterprise repo
cat > 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
apt update && apt full-upgrade -y
pveversion
If you do not use Ceph, also disable ceph.sources the same way. The same change can be made in the web interface under Node » Updates » Repositories.
Step 4: network and storage
The installer creates the Linux bridge vmbr0 on the management NIC; VMs attached to it sit on the same network. Add a second bridge for VM traffic on another NIC under Node » System » Network, or a VLAN-aware bridge to put VMs on tagged VLANs. Add extra disks under Node » Disks as a ZFS pool or LVM-thin and register them in Datacenter » Storage.
Step 5: create the first VM
- Upload an installer ISO to local » ISO Images, or use Download from URL.
- Click Create VM: choose the ISO, machine type q35, SCSI controller VirtIO SCSI single, disk with Discard and IO thread enabled, CPU type host for a single node, network model VirtIO on
vmbr0. - For Windows guests, attach the VirtIO drivers ISO as a second CD so the installer can see the disk.
- After the OS is installed, install
qemu-guest-agentin the guest and enable the agent option on the VM.
Step 6: secure and back up
Create a non-root admin user with two-factor authentication under Datacenter » Permissions, restrict port 8006 to your admin network with the built-in firewall, and schedule backups under Datacenter » Backup, ideally to a Proxmox Backup Server so restores are incremental and verified.
Install Proxmox VE 9 at a glance

Official documentation: Proxmox VE documentation, Proxmox VE package repositories.
Related guides: Proxmox vs ESXi 9 for hosting · Migrate VMware to Proxmox VE 9 · Install VMware ESXi 9.
Frequently asked questions
Is Proxmox VE free to use?
Yes. Proxmox VE is open source under the AGPL and free to use in production. A paid subscription gives access to the enterprise repository and support; without it you use the no-subscription repository.
Should I choose ZFS or ext4 during installation?
Choose ZFS RAID1 when you have two identical disks and no hardware RAID; it adds redundancy, snapshots and checksums. Choose ext4 with LVM-thin on a single disk or behind a hardware RAID controller.
How do I remove the “no valid subscription” message?
The message is only a reminder on login. It does not limit features. Buying a subscription removes it; switching repositories as shown above keeps updates working without one.