Minimal Setup Script

Earlier this year (2025) I’ve written about a simple bash script I wrote to setup a freshly installed Proxmox Virtualization or Backup server. However, I’ve been asked for a minimal version that just sets up the bare essentials on a Proxmox install without adding any extra software/aliases/etc., so here it is.

The script only makes a few essential changes to the Proxmox server.

• Enable IOMMU
• Enable “No subscription” repositories.
• Disable “Nag popup” in the web UI.
• Update the CPU to the latest microcode.
• Update firmware to latest available.

Installation

To install this script on a freshly installed Proxmox server run the following command as root via ssh.

bash -c "$(wget -qLO - https://github.com/alandoyle/proxmox-setup/raw/main/proxmox-minimal-setup)"

After a reboot the initial install is complete.

Note

Only run this script on a freshly installed Proxmox server. I’ve repeated this several times but it’s worth repeating again.